Paradyne Dmd15 Users Manual Tm051 Rev 5 8 Not Released
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2015-02-06
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DMD15/DMD15L IBS/IDR Universal Satellite Modem Installation and Operation Manual TM051 - Rev. 5.8 - NOTICE ©2005, Radyne, Inc. This manual may not in whole or in part be copied, reproduced, translated or reduced to any electronic or magnetic storage medium without the written consent of a duly authorized officer of Radyne, Inc. Radyne, Inc. • 3138 E. Elwood St. • Phoenix, AZ 85034 •(602) 437-9620 • Fax: (602) 437-4811 Latest Software Revision Confirmation When new features are added to Radyne, Inc. equipment, the control parameters are appended to the end of the Non-Volatile Section of the Remote Communications Specification, and status of the features, if any, are added at the end of the Volatile Section. If a remote M&C queries two pieces of Radyne, Inc. equipment with different revision software, they could respond with two different sized packets. The remote M&C MUST make use of the non-volatile count value to index to the start of the Volatile Section. If the remote M&C is not aware of the newly added features to the product, it should disregard the parameters at the end of the Non-Volatile Section and index to the start of the Volatile Section. Before creating any software based on the information contained in this document, contact the Radyne, Inc. Customer Service Department at (602) 437-9620 to find out if the software revision for that piece of equipment is current and that no new features have been added since the release of this document. DMD15/DMD15L IBS/IDR Satellite Modem Warranty Policy Radyne, Inc. Warranty Policy Warranty and Service Radyne, Inc. (Seller) warrants the items manufactured and sold by Radyne, Inc. to be free of defects in material and workmanship for a period of two (2) years from date of shipment Radyne, Inc.’s obligation under its warranty is limited in accordance with the periods of time and all other conditions stated in all provisions of this warranty. This warranty applies only to defects in material and workmanship in products manufactured by Radyne, Inc. Radyne, Inc. makes no warranty whatsoever concerning products or accessories not of its manufacture. Repair, or at Radyne, Inc.’s option, replacement of the Radyne, Inc. products or defective parts therein shall be the sole and exclusive remedy for all valid warranty claims. Warranty Period The applicable warranty period shall commence on the date of shipment from Radyne, Inc.’s facility to the original purchaser and extend for the stated period following the date of shipment. Upon beginning of the applicable Radyne, Inc. warranty period, all customer’s remedies shall be governed by the terms stated or referenced in this warranty. In-warranty repaired or replacement products or parts are warranted only for the remaining unexpired portion of the original warranty period applicable to the repaired or replaced products or parts. Repair or replacement of products or parts under warranty does not extend the original warranty period. Warranty Coverage Limitations The following are expressly not covered under warranty: 5 Any loss, damage and/or malfunction relating in any way to shipping, storage, accident, abuse, alteration, misuse, neglect, failure to use products under normal operating conditions, failure to use products according to any operating instructions provided by Radyne, Inc., lack of routine care and maintenance as indicated in any operating maintenance instructions, or failure to use or take any proper precautions under the circumstances. 5 Products, items, parts, accessories, subassemblies, or components which are expendable in normal use or are of limited life, such as but not limited to, bulbs, fuses, lamps, glassware, etc. Radyne, Inc. reserves the right to revise the foregoing list of what is covered under this warranty. Warranty Replacement and Adjustment Radyne, Inc. will not make warranty adjustments for failures of products or parts, which occur after the specified maximum adjustment period. Unless otherwise agreed, failure shall be deemed to have occurred no more than seven (7) working days before the first date on which a notice of failure is received by Radyne, Inc. Under no circumstances shall any warranty exceed the period stated above unless expressly agreed to in writing by Radyne, Inc. Liability Limitations This warranty is expressly in lieu of and excludes all other express and implied warranties, Including but not limited to warranties of merchantability and of fitness for particular purpose, use, or applications, and all other obligations or liabilities on the part of Radyne Inc., unless such other warranties, obligations, or liabilities are expressly agreed to in writing by Radyne, Inc. All obligations of Radyne, Inc. under this warranty shall cease in the event its products or parts thereof have been subjected to accident, abuse, alteration, misuse or neglect, or which have not been operated and maintained in accordance with proper operating instructions. In no event shall Radyne, Inc. be liable for Incidental, consequential, special or resulting loss or damage of any kind howsoever caused. TM051 - Rev. 5.8 iii Warranty Policy DMD15/DMD15L IBS/IDR Satellite Modem Radyne, Inc.’s liability for damages shall not exceed the payment, if any, received by Radyne, Inc. for the unit or product or service furnished or to be furnished, as the case may be, which is the subject of claim or dispute. Statements made by any person, including representatives of Radyne, Inc., which are inconsistent or in conflict with the terms of this warranty, shall not be binding upon Radyne, Inc. unless reduced to writing and approved by an officer of Radyne, Inc. Warranty Repair Return Procedure Before a warranty repair can be accomplished, a Repair Authorization must be received. It is at this time that Radyne, Inc. will authorize the product or part to be returned to the Radyne, Inc. facility or if field repair will be accomplished. The Repair Authorization may be requested in writing or by calling: Radyne, Inc. 3138 E. Elwood St. Phoenix, Arizona 85034 (USA) ATTN: Customer Support Phone: (602) 437-9620 Fax: (602) 437-4811 Any product returned to Radyne, Inc. for examination must be sent prepaid via the means of transportation indicated as acceptable to Radyne, Inc. Return Authorization Number must be clearly marked on the shipping label. Returned products or parts should be carefully packaged in the original container, if possible, and unless otherwise indicated, shipped to the above address. Non-Warranty Repair When a product is returned for any reason, Customer and its shipping agency shall be responsible for all damage resulting from improper packing and handling, and for loss in transit, not withstanding any defect or nonconformity in the product. By returning a product, the owner grants Radyne, Inc. permission to open and disassemble the product as required for evaluation. In all cases, Radyne, Inc. has sole responsibility for determining the cause and nature of failure, and Radyne, Inc.’s determination with regard thereto shall be final. iv TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem Record of Revisions DMD15/DMD15L IBS/IDR Universal Satellite Installation and Operation Manual TM051 – Record of Revisions Radyne, Inc. is constantly improving its products and therefore the information in this document is subject to change without prior notice. Radyne, Inc. makes no warranty of any kind with regard to this material, Including but not limited to the implied warranties of merchantability and fitness for a particular purpose. No responsibility for any errors or omissions that may pertain to the material herein is assumed. Radyne, Inc. makes no commitment to update nor to keep current the information contained in this document. Radyne, Inc. assumes no responsibility for use of any circuitry other than the circuitry employed in Radyne, Inc. systems and equipment. Revision Level Date 1.0 2.0 6-18-96 9-1-96 2.1 9-16-96 2.2 11-25-96 3.0 12-16-96 3.1 4-10-97 4.0 8-1-99 4.1 5.0 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 7-31-00 12-14-01 1-30-02 3-5-02 6-11-02 8-22-02 8-26-02 9-17-03 7-30-04 10-15-05 TM051 - Rev. 5.8 Reason for Change Initial Release. Expanded Drop and Insert Section, updated menu trees and descriptions, added Strap Code Table, updated Fault Menus, added UIO Interface Settings, updated Specifications Section. Added DMD15/DMD15L Terminal Screens (Appendix C), added Modem Loopback Figures, expanded Principles of Operation Section, added IBS Conditions and Faults Table, added new Universal Interface Illustrations and pinout tables. Expanded Drop and Insert Data and figures, added BER Curves, added additional Interface Pinout Tables and descriptions. Added Reed-Solomon Menu Tree enhancements, added Clocking Data Definitions, minor rearrangements and clarifications. Added additional Reed-Solomon Data, additional UIM Data, and minor corrections to pinout tables. Added AUPC data, new Menu Screens, L-Band Data, ESC Audio Data and minor corrections Added AGC Output Data on Table 2-5. Revised and reformatted entire Technical Manual. Removed Ethernet Port section. Revised Sections 4.3.2, Mod Data (menu), and 4.3.3, Demod Data (menu). Revised Section 1.1.12. Revised Sections 7.0 and 7.1. Added Modem Status pinouts to Section 5.0. Updated user interface, added reacquisition description, updated RLLP. Revised RLLP. Revised Sections 4.0 & 5.0 v DMD15/DMD15L IBS/IDR Satellite Modem vi TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem Table of Contents Table of Contents Section 1 – Introduction 1.0 Description _____________________________________________________ 1-1 1.1 DMD15/DMD15L Available Options __________________________________ 1-1 1.1.1 Internal High Stability ____________________________________________ 1-1 1.1.2 Reed-Solomon Codec ___________________________________________ 1-1 1.1.3 Turbo Codec __________________________________________________ 1-2 1.1.4 Drop and Insert (D&I) ____________________________________________ 1-2 1.1.5 8PSK Modulation _______________________________________________ 1-2 1.1.6 OQPSK Modulation _____________________________________________ 1-2 1.1.7 16QAM Modulation______________________________________________ 1-2 1.1.8 Sequential Decoding ____________________________________________ 1-2 1.1.9 Earth Station-to-Earth Station (ES-ES) Communications ________________ 1-2 1.1.10 Analog AGC Voltage ___________________________________________ 1-2 1.1.11 Internal Engineering Service Channel (ESC)_________________________ 1-2 1.1.12 OM73 Compatible _____________________________________________ 1-2 1.1.13 Back Panel Options ____________________________________________ 1-3 1.1.14 Customized Options____________________________________________ 1-3 Section 2 – Installation 2.0 Installation Requirements __________________________________________ 2-1 2.1 Unpacking ______________________________________________________ 2-1 2.2 Removal and Assembly____________________________________________ 2-1 2.3 Mounting Considerations __________________________________________ 2-2 2.4 DMD15/DMD15L Initial Configuration Check ___________________________ 2-2 2.5 Modulator Checkout ______________________________________________ 2-3 2.5.1 Initial Power-Up ________________________________________________ 2-3 TM051 - Rev. 5.8 vii Table of Contents DMD15/DMD15L IBS/IDR Satellite Modem Section 3 – Operation 3.0 Theory of Operation ______________________________________________ 3-1 3.1 DMD15/DMD15L Functional Block Diagram ____________________________ 3-1 3.2 Universal Interface Module (UIM) ____________________________________ 3-3 3.3 Synchronous Interface ____________________________________________ 3-4 3.4 G.703 Interface __________________________________________________ 3-4 3.5 Earth Station to Earth Station (ES-ES) Communications Port ______________ 3-5 (Async Port J9)______________________________________________________ 3-5 3.6 Terrestrial Loopback ______________________________________________ 3-5 3.7 Modem Status ___________________________________________________ 3-5 3.8 Baseband Processor Card _________________________________________ 3-8 3.8.1 Baseband Processing ___________________________________________ 3-8 3.8.2 Tx Baseband Processing _________________________________________ 3-8 3.8.3 Rx Baseband Processing_________________________________________ 3-9 3.8.4 Clock Selection ________________________________________________ 3-9 3.9 Monitor & Control (M&C) Subsystem _________________________________ 3-9 3.9.1 Asynchronous Serial Port #1 ______________________________________ 3-9 3.9.2 Serial Port #2 __________________________________________________ 3-9 3.9.3 Serial Port #3 __________________________________________________ 3-9 3.9.4 Front Panel Interface ___________________________________________ 3-10 3.9.5 Clock _______________________________________________________ 3-10 3.9.6 Watchdog Timer_______________________________________________ 3-10 3.9.7 Program Flash ROM ___________________________________________ 3-10 3.9.8 RAM ________________________________________________________ 3-10 3.9.9 Non-Volatile RAM______________________________________________ 3-10 3.10 Universal Modem ______________________________________________ 3-10 3.10.1 Modulator ___________________________________________________ 3-10 3.10.2 Demodulator_________________________________________________ 3-11 3.11 DMD15/DMD15L Clocking Options_________________________________ 3-11 3.11.1 SCTE: Serial Clock Transmit External _____________________________ 3-11 3.11.2 SCT: Serial Clock Transmit _____________________________________ 3-11 3.11.4 EXT EXC: External Clock_______________________________________ 3-11 3.11.5 BNC EXC: BNC External Clock __________________________________ 3-11 3.11.6 BAL EXC: Balanced External Clock_______________________________ 3-11 3.11.7 IDI: Insert Data In_____________________________________________ 3-12 viii TM051 - Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem Table of Contents 3.11.8 SCR: Serial Clock Receive _____________________________________ 3-12 3.11.9 EXT IF REF: External IF Reference_______________________________ 3-12 3.12 Transmit Timing _______________________________________________ 3-12 3.12.1 EXT CLK as TX Clock Source (RS-422 or V.35 Interface) _____________ 3-12 3.12.2 SCT or SCTE ________________________________________________ 3-12 3.12.3 G.703 Interface ______________________________________________ 3-12 3.13 Receive Timing ________________________________________________ 3-12 3.14 Loop Timing __________________________________________________ 3-13 3.14.1 Transmit (RS-422 or V.35 Interface) ______________________________ 3-13 3.14.2 G.703 Interface or Asymmetrical Data Rates _______________________ 3-13 3.14.3 Receive ____________________________________________________ 3-13 3.15 Drop and Insert (D&I) ___________________________________________ 3-13 3.15.1 Drop Only ___________________________________________________ 3-15 3.15.2 Insert Only __________________________________________________ 3-15 3.16 Mode Selection ________________________________________________ 3-16 3.16.1 PCM-30 ____________________________________________________ 3-16 3.16.2 PCM-30C ___________________________________________________ 3-16 3.16.3 PCM-31 ____________________________________________________ 3-16 3.16.4 PCM-31C ___________________________________________________ 3-17 3.16.5 T1-D4/T1-D4-S_______________________________________________ 3-17 3.16.6 T1-ESF/ T1-ESF-S____________________________________________ 3-17 3.16.7 SLC-96 _____________________________________________________ 3-17 3.17 Multidestinational Systems _______________________________________ 3-17 3.17 Drop and Insert Mapping_________________________________________ 3-18 3.18 Reed-Solomon Codec (Refer to Figures 3-14, 3-15, and Table 3-1) _______ 3-20 3.18.1 Operation in the DMD15/DMD15L ________________________________ 3-20 3.18.2 Reed-Solomon Code Rate ______________________________________ 3-20 3.18.3 Interleaving__________________________________________________ 3-20 3.19 DMD15 Automatic Uplink Power Control (AUPC Operation) _____________ 3-22 3.20 DMD15 Asynchronous Overhead Operation__________________________ 3-24 3.20.1 Asynchronous Framing/Multiplexer Capability _______________________ 3-24 3.21 Standard IBS Mode_____________________________________________ 3-26 3.22 Asynchronous Multiplexer Mode __________________________________ 3-26 3.23 ESC Backward Alarms __________________________________________ 3-26 3.23.1 To Disable the ESC Backward Alarms_____________________________ 3-27 TM051 - Rev. 5.8 ix Table of Contents DMD15/DMD15L IBS/IDR Satellite Modem 3.24 Reacquisition__________________________________________________ 3-27 Section 4 – User Interfaces 4.0 User Interfaces __________________________________________________ 4-1 4.1 Front Panel User Interface _________________________________________ 4-1 4.1.1 LCD Front Panel Display _________________________________________ 4-2 4.1.2 Cursor Control Arrow Keys _______________________________________ 4-2 4.1.3 Numeric Keypad________________________________________________ 4-2 4.1.4 Front Panel LED Indicators _______________________________________ 4-3 4.2 Parameter Setup _________________________________________________ 4-3 4.3 Front Panel Control Screen Menus___________________________________ 4-4 4.3.1 Main Menus ___________________________________________________ 4-4 4.3.2 Modulator Menu Options and Parameters ____________________________ 4-4 4.3.3 Demodulator Menu Options and Parameters__________________________ 4-8 4.3.4 Interface Menu Options and Parameters ____________________________ 4-11 4.3.5 AUPC Menu Options and Parameters ______________________________ 4-14 4.3.6 Monitor Menu Options and Parameters _____________________________ 4-16 4.3.7 Alarms Menu Options and Parameters _____________________________ 4-17 4.3.8 System Menu Options and Parameters _____________________________ 4-24 4.3.9 Test Menu Options and Parameters _______________________________ 4-25 4.4 DMD15/DMD15L Strap Codes _____________________________________ 4-26 4.5 Sample DMD15/DMD15L Applications _______________________________ 4-30 4.5.1 Operational Case Examples _____________________________________ 4-31 4.6 Configuring the DMD15/DMD15L for Drop and Insert ___________________ 4-34 4.6.1 Data Rate ____________________________________________________ 4-34 4.6.2 Operational Mode______________________________________________ 4-35 4.6.3 Terrestrial Framing - Drop Mode/Insert Mode ________________________ 4-35 4.6.3.1 Insert Terrestrial Frame Source _________________________________ 4-35 4.6.4 D&I Sample Configurations and D&I Clock Setup Options ______________ 4-36 4.7 D&I Maps and Map Editing ________________________________________ 4-40 4.8 Terminal Mode Control ___________________________________________ 4-43 4.8.1 Modem Terminal Mode Control ___________________________________ 4-43 4.8.2 Modem Setup for Terminal Mode__________________________________ 4-43 x TM051 - Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem Table of Contents Section 5 – Electrical Interfaces 5.0 DMD15/DMD15L Connections ______________________________________ 5-1 5.1 Power Inputs ____________________________________________________ 5-2 5.1.1 AC Power Input Module __________________________________________ 5-2 5.1.2 DC Power Input Module __________________________________________ 5-2 5.2 TX (J1) ________________________________________________________ 5-3 5.3 RX (J2) ________________________________________________________ 5-3 5.4 SD (J3) ________________________________________________________ 5-3 5.5 DDO (J4) _______________________________________________________ 5-3 5.6 IDI EXC (J5) ____________________________________________________ 5-3 5.7 EXT CLK (J5) – Synchronous Interface Only ___________________________ 5-3 5.8 RD (J6) ________________________________________________________ 5-3 5.9 G.703 (J7) ______________________________________________________ 5-3 5.10 SYNC DATA (J8) _______________________________________________ 5-4 5.11 ASYNC (J9)____________________________________________________ 5-5 5.11 STATUS (J11)__________________________________________________ 5-6 5.13 TERMINAL (J12) ________________________________________________ 5-7 5.14 REMOTE (J13) _________________________________________________ 5-7 5.15 ESC 8K DATA (J15) _____________________________________________ 5-8 5.16 ESC VOICE (J16) _______________________________________________ 5-9 5.17 ESC ALARMS (J17) _____________________________________________ 5-9 5.18 SWITCH (J18)_________________________________________________ 5-10 Section 6 – Maintenance 6.0 Periodic Maintenance _____________________________________________ 6-1 6.1 Troubleshooting _________________________________________________ 6-1 6.2 DMD15/DMD15L Fault Philosophy ___________________________________ 6-1 6.2.1 Alarm Masks __________________________________________________ 6-2 6.2.2 Active Alarms __________________________________________________ 6-2 6.2.2.1 Major Alarms _________________________________________________ 6-2 6.2.2.2 Minor Alarms _________________________________________________ 6-2 6.2.2.3 Latched Alarms _______________________________________________ 6-2 6.3 DMD15/DMD15L Fault Tree Matrices _________________________________ 6-2 6.3.1 Interpreting the Matrices _________________________________________ 6-4 6.3.2 IBS Fault Conditions and Actions___________________________________ 6-4 TM051 - Rev. 5.8 xi Table of Contents DMD15/DMD15L IBS/IDR Satellite Modem Section 7 – Technical Specifications 7.0 Modulator Specifications ___________________________________________ 7-1 7.1 Demodulator Specifications ________________________________________ 7-1 7.2 Plesiochronous Buffer _____________________________________________ 7-2 7.3 Monitor and Control_______________________________________________ 7-2 7.4 DMD15/DMD15L Drop and Insert (Optional) ___________________________ 7-2 7.5 Terrestrial Interfaces ______________________________________________ 7-3 7.6 Universal Interface _______________________________________________ 7-3 7.7 Environmental ___________________________________________________ 7-3 7.8 Physical ________________________________________________________ 7-3 7.9 DMD15 Data Rate Limits __________________________________________ 7-4 7.10 DMD15 BER Specifications________________________________________ 7-5 Section 8 – Appendices Appendix A – Reed-Solomon Codes _____________________________________ A-1 Glossary __________________________________________________________ G-1 xii TM051 - Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem Introduction Section 1 – Introduction 1.0 Description The Radyn, Inc. DMD15/DMD15L Satellite Modem (Figure 1-1) offers the best features of a sophisticated programmable IBS/IDR and Closed Network Modem, at an affordable price. This versatile equipment package combines unsurpassed performance with numerous userfriendly Front Panel Programmable Functions. The DMD15/DMD15L provides selectable functions for different services: Intelsat IDR and IBS, as well as closed networks. All of the configuration and Monitor and Control (M&C) Functions are available at the Front Panel. Operating parameters, such as variable data rates, FEC Code Rate, modulation type, IF frequencies, IBS/IDR Framing and interface type can be readily set and changed at the Front Panel by earth station operations personnel. Additionally, all functions can be accessed with a terminal or personal computer via a serial link for complete remote monitoring and control capability. The DMD15/DMD15L operates at all standard IBS and IDR Data Rates up to 8.448 Mbps. Selection of any data rate is provided over the range of 9.6 Kbps to 10 Mbps in 1 bps steps. For applications requiring system redundancy, the DMD15/DMD15L Modem may be used with the Radyne , Inc. RCS11 1:1 Redundancy Switch or the RCS20 M:N (N < 9) Redundancy Switch. An optional Internal Engineering Service Channel Unit is available to provide voice, data, and alarms for Intelsat IDR applications. A full range of Industry Standard Interfaces is available for the DMD15/DMD15L. Interface types are selectable from V.35, RS-232, RS-422/449 and ITU G.703. Figure 1-1. DMD15/DMD15L Universal Satellite Modem Front Panel 1.1 DMD15/DMD15L Available Options A wide range of options is available for the DMD15/DMD15L Satellite Modem. 1.1.1 Internal High Stability -7 The DMD15/DMD15L can be equipped with a 1x10 or better Stability Frequency Reference as an add-on enhancement. 1.1.2 Reed-Solomon Codec The DMD15/DMD15L can be equipped with a Reed-Solomon (R-S) Outer Codec with an interleaver as an optional add-on enhancement. The encoder and decoder are completely independent and meet the IESS-308/309/310 specification. Once prepped, this option can be installed in the field by installing five ICs into existing sockets. The DMD15/DMD15L must be prepped for this option. Note: Custom Reed-Solomon codes are also available. TM051 - Rev. 5.8 1-1 Introduction DMD15/DMD15L IBS/IDR Satellite Modem 1.1.3 Turbo Codec The DMD15/DMD15L can be equipped with an optional Turbo Codec Outer Code. This option must be installed at the factory. 1.1.4 Drop and Insert (D&I) The DMD15/DMD15L can be equipped with a D&I Interface as an add-on enhancement. This option can be added in the field by installing one IC into an existing socket. The D&I Functions are completely independent and can be programmed for n x 64 blocks for either a T1 or E1 Data Stream. 1.1.5 8PSK Modulation The DMD15/DMD15L can be equipped with 8PSK Modulation/Demodulation capability as an addon option. The 8PSK Option can be added by installing 2 ICs into existing sockets. 1.1.6 OQPSK Modulation The DMD15/DMD15L can be equipped with an OQPSK modulation/demodulation capability as an add-on option. The option can be added in the field by installing one IC into an existing socket. 1.1.7 16QAM Modulation The DMD15/DMD15L can be equipped with a 16QAM Modulation/Demodulation capability as an add-on option. The 16QAM option can be added by installing 2 ICs into existing sockets. 1.1.8 Sequential Decoding The DMD15/DMD15L can be equipped with a sequential decoding option that can be installed as an add-on option. The DMD15/DMD15L must be prepped for this option in the factory. Once prepped, the option can be added by installing 3 ICs into existing sockets. Sequential Encoding/Decoding can operate with 1/2, 3/4, and 7/8 Rates, up to data rates of 2.048 Mbps. 1.1.9 Earth Station-to-Earth Station (ES-ES) Communications The DMD15/DMD15L can be equipped with an asynchronous overhead channel capability as an add-on option. The option can be added in the field by installing 2 ICs into existing sockets. The overhead channel is proportional to the data rate (2,400 baud per 64 KB) up to a maximum of 19.2 Kbaud. 1.1.10 Analog AGC Voltage The DMD15/DMD15L can be equipped at the factory to produce an analog voltage equivalent to its AGC for use in antenna controllers. 1.1.11 Internal Engineering Service Channel (ESC) The DMD15/DMD15L can be equipped with an internal ESC. This unit is a card on the Universal Interface Module (UIM). The DMD15/DMD15L can be updated with an ESC capable UIM in the field with no other changes required. 1.1.12 OM73 Compatible 1-2 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem Introduction The DMD15/DMD15L can be equipped with an optional OM73 scrambler at the customer’s request. This option must be prepped at the factory. Once installed, selection of the OM73 Scrambler/Descrambler will automatically invert the baseband data on the Modulator/Demodulator respectively. This configuration is required to run compatible with the OM73 Modem. 1.1.13 Back Panel Options The DMD15/DMD15L has several optional Interface Modules available (refer to Figures 5-1 through 5-5). These include: Universal Interface Module w/ ESC G.703 Interface Module w/ESC G.703 Interface Module Universal Interface Module Synchronous Interface Module These Interface Modules are available with AC or DC Power Input Modules and the following Transmit and Receive schemes. IF Transmit and Receive L-Band Transmit and Receive IF Transmit, L-Band Receive IF Receive Only L-Band Receive Only 1.1.14 Customized Options The DMD15/DMD15L may be customized for specific customer requirements. Most modifications or customization can be accomplished by means of firmware/software modifications. The following are examples of the types of customization available to the user: Customized Data Rates. Customized Scrambler/Descramblers. Customized Overhead Framing Structures. Customized Modulation Formats. Customized Uses for the Earth Station-to-Earth Station (ES-ES) Overhead Channel. Contact the Radyne , Inc. Customer Service or Sales Department at (602) 437-9620 for all requests. TM051 - Rev. 5.8 1-3 DMD15/DMD15L IBS/IDR Satellite Modem Installation Section 2 – Installation 2.0 Installation Requirements The DMD15/DMD15L Modem is designed to be installed within any standard 19-inch wide equipment cabinet or rack, and requires one rack unit (RU) of mounting space (1.75 inches) vertically and 21 inches of depth. Including cabling, a minimum of 23 inches of rack depth is required. The rear panel of the DMD15/DMD15L is designed to have power enter from the right and IF Cabling enter from the left when viewed from the rear of the modem. Data and control cabling can enter from either side although they are closer to the right. The unit can be placed on a table or suitable surface if required. There are no user-serviceable parts or configuration settings located inside the DMD15/DMD15L Chassis. There is a potential shock hazard internally at the power supply module. DO NOT open the DMD15/DMD15L Chassis under any circumstances. Before initially applying power to the unit, it is a good idea to disconnect the transmit output from the operating ground station equipment. This is especially true if the current DMD15/DMD15L configuration settings are unknown, where incorrect settings could disrupt existing communications traffic. 2.1 Unpacking The DMD15/DMD15L Modem was carefully packaged to avoid damage and should arrive complete with the following items for proper installation: 1. 2. 3. DMD15/DMD15L Modem Unit. Power Cord, 6-foot with applicable AC Connector. Installation and Operation Manual. 2.2 Removal and Assembly Carefully unpack the unit and ensure that all of the above items are in the carton. If the Prime AC power available at the installation site requires a different Power Cord/AC Connector, then arrangements to receive the proper device will be necessary before proceeding with the installation. The DMD15/DMD15L Modem Unit is shipped fully assembled and does not require removal of the covers for any purpose in installation. The only replaceable assembly in the unit is the Universal Interface Module (UIM). TM051 - Rev. 5.8 2-1 Installation DMD15/DMD15L IBS/IDR Satellite Modem Always ensure that power is removed from the DMD15/DMD15L before removing or installing a UIM. Failure to do so may cause damage to the equipment. Should the Power Cable/AC Connector be of the wrong type for the installation, either the cable or the power connector end should be replaced. The power supply itself is designed for universal application using from 100 to 240 VAC, 50 to 60 Hz, 1.0 A. 2.3 Mounting Considerations When mounted in an equipment rack, adequate ventilation must be provided. The ambient temperature in the rack should preferably be between 10° and 35° C, and held constant for best equipment operation. The air available to the rack should be clean and relatively dry. The modem units may be stacked one on top of the other to a maximum of 10 consecutive units before providing one RU of space for airflow. Modem units should not be placed immediately above a high heat or EMF Generator to ensure the output signal integrity and proper receive operation. Do not mount the DMD15/DMD15L in an unprotected outdoor location where there is direct contact with rain, snow, wind or sun. The modem is designed for indoor applications only. The only tools required for rack mounting the DMD15/DMD15L is a set of four rack-mounting screws and the appropriate screwdriver. Rack mounting brackets are an integral part of the cast front bezel of the unit and are not removable. 2.4 DMD15/DMD15L Initial Configuration Check The DMD15/DMD15L is shipped from the factory with preset factory defaults. Upon initial powerup, a user check should be performed to verify the shipped modem configuration. Refer to Section 4, User Interfaces to locate and verify that the following configuration settings are correct: The DMD15/DMD15L Interface Type (V.35, RS-422, RS-232, G.703, etc.) MUST be selected from the Front Panel BEFORE the mating connectors are installed. Failure to do so may cause damage to the Universal Interface Module. Power up the DMD15/DMD15L, select the appropriate interface type, and then install the mating connectors. Note: Transmit (Tx) and Receive (Rx) Interface types are dependent upon the customer’s order. 2-2 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem Installation Standard DMD15/DMD15L Factory Configuration Settings Modulator: Data Rate: Mode: Forward Error Correction: Modulation: Frequency: 2.048 Mbps Closed Network 1/2 Rate Viterbi QPSK 70.000000 MHz Note: The above modem configuration can be set by implementing Strap Code 26. Refer to Table 3-1 for an explanation and tabular listing of available Strap Codes. Modulator Output Power: -20 dBm Demodulator: Data Rate: Mode: Forward Error Correction: Frequency: 2.048 Mbps Closed Network 1/2 Rate Viterbi 70.000000 MHz To lock up the modem, enter ‘IF Loopback Enable’ under the Test menu, or connect a Loopback Cable from J1 to J2 on the rear panel of the modem. 2.5 Modulator Checkout The following descriptions assume that the DMD15/DMD15L is installed in a suitable location with prime AC power and supporting equipment available. 2.5.1 Initial Power-Up Before initial power up of the DMD15/DMD15L, it is a good idea to disconnect the transmit output from the operating ground station equipment. This is especially true if the current Modulator Configuration Settings are unknown, where incorrect settings could disrupt the existing communications traffic. New units from the factory are normally shipped in a default configuration which includes setting the transmit carrier off. Turn on the unit by placing the Rear Panel Switch (located above the power entry connector) to the ‘ON’ position. Upon initial and subsequent power-ups, the DMD15/DMD15L Microprocessor will test itself and several of its components before beginning its Main Monitor/Control Program. These power-up diagnostics show no results if successful. If a failure is detected, the Fault LED will illuminate. TM051 - Rev. 5.8 2-3 Installation DMD15/DMD15L IBS/IDR Satellite Modem The initial field checkout of the modem can be accomplished from the Front Panel or in the Terminal Mode. The Terminal Mode has the advantage of providing full screen access to all of the modem’s parameters, but requires a separate terminal or computer running a Terminal Program. The unit is placed into terminal mode by setting two options via the Front Panel. The two options are the Term Baud and Emulation settings found under the System M&C Submenus. Terminal Setup: Baud Rate: Data Bits: Parity: Stop Bits: 2-4 19.2 K (Can be changed via Front Panel) 8 No Parity (Fixed) 1 Stop Bit TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem Operation Section 3 – Operation 3.0 Theory of Operation The DMD15/DMD15L is designed in three major sections: Universal Interface, Baseband Processing, and Universal Modem. 3.1 DMD15/DMD15L Functional Block Diagram Figures 3-1a through 3-1c represent the DMD15/DMD15L Functional Blocks. The modem is shown in a typical application with customer data, Tx/Rx RF equipment and an antenna. Figure 3-1a. DMD15/DMD15L Universal Satellite Modem Functional Block Diagram TM051 - Rev. 5.8 3-1 Operation DMD15/DMD15L IBS/IDR Satellite Modem Figure 3-1b (Alternate 1). DMD15/DMD15L Universal Satellite Modem Functional Block Diagram Figure 3-1c (Alternate 2). DMD15/DMD15L Universal Satellite Modem Functional Block Diagram 3-2 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem Operation 3.2 Universal Interface Module (UIM) The Universal Interface Module (UIM) is a field-replaceable module that plugs into the rear of the DMD15/DMD15L. The UIM provides the interconnection points (J3 - J8) for Terrestrial Data and Clock to the Modem. The UIM also contains a Connection Port for an Asynchronous Data Channel (J9) for use in Earth Station-to-Earth Station (ES-ES) communications. Additionally, the UIM provides connection points (J11) for Form-C modem Status Relays. An illustration of two versions of the UIM is shown in Figure 3-2, and Functional Block Diagrams are shown in Figure 3-3. Figure 3-2. Universal Interface Modules (UIM) Dip Switch Settings TM051 - Rev. 5.8 3-3 Operation DMD15/DMD15L IBS/IDR Satellite Modem Figure 3-3. Universal Interface Modules (UIM) Functional Block Diagram 3.3 Synchronous Interface Synchronous Tx Data and Clock enters the UIM and is routed to either the RS-422, RS-232, or V.35 Receiver as the selected M&C Processor. The signals are then converted to an RS-422 balanced format and sent to the Baseband (BB) Processor Card. Receive Data from the BB Processor Card undergoes the reverse process where it is converted from RS-422 Balanced format and routed to the RS-422 or V.35 Drivers. 3.4 G.703 Interface Either Balanced or Unbalanced G.703 Data is routed from the ‘Send Data In’ Connections to the G.703 Receiver. The G.703 Receiver recovers a clock from the data stream, converts the clock and data to an RS-422 balanced format, and routes the clock and data to the BB Processor. The reverse process is performed on the Receive Data Stream where the G.703 Data exits the modem at the ‘Receive Data Out’ Connection. The G.703 Interface is designed to operate at the following data rates: T1 (1.544 Mbps) E1 (2.048 Mbps) T2 (6.312 Mbps) E2 (8.448 Mbps) Additionally, the line code is selected when the interface type is selected with the exception that T1 may use B8ZS or AMI as selected at the Front Panel. The G.703 Interface also contains two additional ports that can operate at T1 or E1 that provides a four port D&I Interface. The ‘Drop Data Out’ Port provides an unaltered Send Data Output that can be used for daisy chaining additional systems. On the receive side, a T1 or E1 Data Stream 3-4 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem Operation can be connected to the ‘Insert Data In’ Port where received data will overwrite ‘dropped on’ the T1/E1 Data Stream. The modified T1/E1 Data Stream will then exit the modem out of the ‘Receive Data Out’ Port. 3.5 Earth Station to Earth Station (ES-ES) Communications Port (Async Port J9) The UIM contains a selectable RS-232, or RS-485 Asynchronous Communications Port for EarthStation-to-Earth-Station Communications. The data is routed from the 9-Pin “D” Connector J9 to one of the M&C Processor UARTS on the Baseband Processor Card. The baud rate and protocol can be selected from the Front Panel. 3.6 Terrestrial Loopback The UIM also provides for terrestrial loopback. For Tx Terr Loopback, Tx Data, after passing through the Line Interface is looped back to the Rx Data line drivers. For RX Terr Loopback, the Receive Data from the satellite is looped back for retransmission to the satellite providing a far end loopback. Tx/Rx Loopback provides both loopbacks simultaneously. Refer to Figures 3-4 through 3-6 for loopback functional block diagrams. 3.7 Modem Status The UIM provides several status indications, which are controlled by the M&C Processor. Form-C Contacts: The UIM provides three Form-C Relays under processor control that appear at J11. Mod Fault: De-energized when any transmit side fault is detected. Demod Fault: De-energized when any receive side fault is detected. Common Fault: De-energized when any fault that is not explicitly a Tx or Rx Fault such as an M&C or Power Supply Fault. Open Collector Faults: The UIM provides two Open Collector Faults that appear at Pins 28 & 10 on J8. Mod Fault: Will sink up to 20 ma (maximum) until a transmit or common fault is detected. Will not sink current if a fault is detected. Demod Fault: Will sink up to 20 ma (maximum) until a receive or common fault is detected. Will not sink current if a fault is detected. The open collector faults are intended for use in redundancy switch applications in order to provide quick status indications. TM051 - Rev. 5.8 3-5 Operation DMD15/DMD15L IBS/IDR Satellite Modem Figure 3-4. Loopback Functional Block Diagram 3-6 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem Operation Figure 3-5. Loopback Functional Block Diagram Figure 3-6. Loopback Functional Block Diagram TM051 - Rev. 5.8 3-7 Operation DMD15/DMD15L IBS/IDR Satellite Modem 3.8 Baseband Processor Card The Baseband Processor Card (BB Card) contains two major subsystems⎯the Baseband Processing System and the Monitor and Control Subsystem. 3.8.1 Baseband Processing The Baseband Processor performs all of the functions required for an IBS/IDR Framing Unit, a Reed-Solomon Codec, an E1/T1 Drop and Insert System and a Turbo Codec. In addition, the Baseband Processing Section provides for Transmit clock selection and rate adaptation as well as a rate adapter and Plesiochronous/Doppler (PD) Buffer in the receive direction. A multiplexer is also provided for the SCT Clock Source for Loop Timing Applications. The transmit and receive paths may be configured independently under processor control. 3.8.2 Tx Baseband Processing As shown in Figure 3-7, the Tx Data and Clock enters the Baseband Processor, passes through a Rate Adapting FIFO and enters the Framer/Drop Processor. In Closed-Net Mode, the data passes through the framer unaltered. In IDR, IBS, and D&I Modes, the framer adds the appropriate framing and ESC as defined in IESS-308 and 309. In D&I Mode, the framer acquires the terrestrial framing structure, E1 or T1, and synchronizes the Drop Processor. The Drop Processor extracts the desired time slots from the terrestrial data stream and feeds these channels back to the framer. The framer then places the ‘dropped’ terrestrial time slots into the desired satellite channel slots. The data is then sent to the Reed-Solomon Encoder. The Reed-Solomon Encoder, if engaged, is designed as an installable option that encodes the data into Reed-Solomon Blocks. The blocks are interleaved and synchronized to the frame pattern as defined in IESS-308 and IESS-309. After Reed-Solomon Encoding, the composite data and clock are applied to the BB Loopback Circuit. Figure 3-7. DMD15/DMD15L Clock Logic 3-8 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem Operation 3.8.3 Rx Baseband Processing The Receive Processor performs the inverse function of the Tx Processor. Data received from the satellite passes through the BB Loopback Circuit to the Reed-Solomon Decoder to the Deframer. The Deframer acquires the IBS/IDR frame, synchronizes the Reed-Solomon Decoder and extracts the received data and overhead from the frame structure, placing the data into the PD Buffer, sending the overhead data to the UIM. In Closed-Net Mode, the data is extracted from the buffer and is sent to the UIM. Backward Alarm indications are sent to the M&C Subsystem. In Drop and Insert Mode, the Insert Processor synchronizes to the incoming terrestrial T1/E1 Data Stream, extracts satellite channels from the PD Buffer, and then inserts them into the desired terrestrial time slots in the T1/E1 Data Stream. 3.8.4 Clock Selection Both the Tx Clock and the Buffer Clock source may be independently locked to one of the following: SCT (Internal Oscillator) SCTE (External Tx Terrestrial Clock) EXC clock (External Clock Source) Rx Satellite Clock (Loop Timing) Additionally, for loop timing applications the SCT Clock Source can be selected to be Rx Satellite Clock. 3.9 Monitor & Control (M&C) Subsystem Also contained on the BB Card is the M&C Subsystem. The M&C contains a high-performance Motorola 68302 Microprocessor and is responsible for overall command and control of modem functions. The M&C is constantly monitoring all subsystems of the modem by performing a periodic poll routine and configures the modem by responding to commands input to the system. During each poll cycle, the status of each of the subsystems is collected and reported to each of the external ports and Front Panel. Performance statistics such as Eb/No, buffer fill %, etc. are compiled. If faults are detected, the M&C will take appropriate actions to minimize the effect of such faults on the system (Refer to the Fault Matrices in the Section 6 (Maintenance) of this manual). The M&C subsystem contains the following features: 3.9.1 Asynchronous Serial Port #1 This port is dedicated to the Terminal Program. With this program, all features of the modem may be controlled and monitored by any common terminal connected to the Terminal Port. 3.9.2 Serial Port #2 This port is dedicated to the Modem Remote Port. This port may be configured to support a number of synchronous or asynchronous protocols such as HDLC, and RS-485. This port is intended for use in computer-based remote M&C. All functions of the modem may be monitored and controlled from this port. 3.9.3 Serial Port #3 This port is dedicated for ES-ES Communications. The port may be configured for a number of communications protocols. Overhead data to/from the UIM is routed to/from the framer/deframer. TM051 - Rev. 5.8 3-9 Operation DMD15/DMD15L IBS/IDR Satellite Modem 3.9.4 Front Panel Interface The M&C operates the Front Panel, which includes a 2 x 12 backlit LCD, Indicator LEDs, and a Numeric Keypad. 3.9.5 Clock The time and date is kept in order to ‘time-tag’ system events. 3.9.6 Watchdog Timer The Watchdog Timer monitors the health of the M&C Subsystem. 3.9.7 Program Flash ROM The 512K of reprogrammable program ROM (expandable to 1 MB) is available to the M&C. 3.9.8 RAM 128K RAM (expandable to 512K) 3.9.9 Non-Volatile RAM 8K of Non-Volatile RAM (expandable to 32K) is provided in order to hold the modems current configuration. In the case of power interruption, the M&C will reconfigure the modem identically to the state before power was lost. 3.10 Universal Modem The Universal Modem (UM) Card contains a complete variable rate modulator/demodulator intended for satellite communications. The UM utilizes the latest digital technology for high reliability and versatility. The modulator and demodulator sections may be configured independently under processor control. The UM includes a duaL-Band 70/140 MHz IF, QAM Modulator/Phase Lock Receiver, Convolutional Encoder/Viterbi Decoder, sequential decoding option, Differential Encoder/Decoder, and a V.35 Scrambler/Descrambler. 3.10.1 Modulator Processed baseband data ready for transmission enters the modulator and undergoes, if the functions have been enabled, V.35 Scrambling and Differential Encoding. The data then undergoes convolutional encoding and is fed to the Dual Variable Interpolating FIR Filter. The FIR Filter shapes the data waveform to a predefined spectral mask and vectorizes the data for mapping into a PSK Constellation. The data is then converted to an analog waveform and is vector modulated onto an RF Carrier produced from the Transmit IF Synthesizer Circuitry. The final output is then fed to the IF Loopback Circuitry where under microprocessor control the Transmit Signal may be routed to the demodulator. Due to its nearly complete digital implementation, the modulator is capable of performing virtually any modulation format, and can produce almost any desired spectral mask. The modulator also houses the SCT and Reference Oscillators. The Reference Oscillator provides the frequency standard for both the modulator and demodulator. An external reference may also be selected. In this case, the Reference Oscillator is locked to the external reference. 3-10 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem Operation 3.10.2 Demodulator The demodulator performs a complete digital implementation of a Variable-Rate Phase-Lock Satellite Receiver utilizing state-of-the-art digital signal processing techniques. The demodulator is capable of receiving nearly any modulation format. Signals enter the demodulator, are converted to baseband, split into ‘I’ In-Phase and ‘Q’ Quadrature Channels and digitized. The digitized I and Q Channels are then applied to a decimating FIR Matched Filter. After filtering, the signal is demodulated using a Costas Loop for recovery of the carrier and a clock recovery loop for recovery of bit timing. The demodulated data is then fed to a 1650 Viterbi Decoder, or Sequential Decoder if the option is installed. After decoding, the data is differentially decoded and descrambled. 3.11 DMD15/DMD15L Clocking Options The following paragraphs define the types of clocking options available to the user at the Front Panel of the DMD15/DMD15L: 3.11.1 SCTE: Serial Clock Transmit External This clock is the Transmit Terrestrial Clock associated with the interface. With the G.703 Interface selected, SCTE is the clock that is recovered from the G.703 data stream. SCTE is sometimes referred to as Tx Terrestrial Timing and for Synchronous Interfaces such as RS-422, SCTE is sometimes referred to as TT (Terminal Timing). 3.11.2 SCT: Serial Clock Transmit This clock is an internally generated clock that is output from the modem. The clock is generally used by the Terrestrial Terminal equipment for clocking the transmit data. The frequency of the clock is set the same as the Transmit Terrestrial Clock rate if internal is selected, or is the receive clock from the Demodulator if SCR is selected. SCT is sometimes referred to as Internal Timing or ST (Send Timing). 3.11.4 EXT EXC: External Clock This is an independent clock source. This clock is most often used if there is a station master clock. The EXT EXC can be selected, in the Interface/General Menu, to be balanced, bnc exc, sys rcs10, or IDI. IDI is used ONLY for D&I cases where external framing is selected. In this case the EXT EXC must be set to IDI where the Receive Buffer Clock is derived from the external Receive T1 or E1 Trunk. 3.11.5 BNC EXC: BNC External Clock Unbalanced external clock input into BNC Connector J5. Clock specification: Frequency: Level: 1 MHz – 10 MHz in 40 kHz steps 0.5 Vp-p – 5 Vp-p 3.11.6 BAL EXC: Balanced External Clock This clock is input into J8-15-33, J7-7-8, or J18-13-47; all connectors are wired together for this clock and so only one connector pair should be driven at one time. The clock must meet RS-422 levels. TM051 - Rev. 5.8 3-11 Operation DMD15/DMD15L IBS/IDR Satellite Modem 3.11.7 IDI: Insert Data In This clock source is only used as an external frame source selected in D&I Mode. If External Frame Source is selected, then IDI must be selected for the buffer clock. For this case, a Receive T1/E1 Trunk is input into J5 and a buffer clock is derived. 3.11.8 SCR: Serial Clock Receive This Receive Clock is recovered from the satellite’s receive signal from the satellite. SCR is sometimes referred to as Receive Clock, Satellite Clock, or as RT (Receive Timing). 3.11.9 EXT IF REF: External IF Reference This is not actually a clock, but does have some clocking implications. When the external reference is used, the master oscillator within the DMD15/DMD15L is locked to the external reference, and the internal accuracy and stability of the DMD15/DMD15L assumes that of the External Reference. Therefore, not only are the transmit and receive frequencies of the DMD15/DMD15L locked to the external reference, but the modem’s internal SCT Oscillator is locked to the external reference as well. 3.12 Transmit Timing As shown in Figure 3-7, Transmit Terrestrial Data enters the modem and is clocked into a Dejitter FIFO. Data is clocked out of the FIFO by the Modulator Clock. The Modulator Clock and PhaseLocked Loop (PLL), in conjunction with the Dejitter FIFO, reduces the input jitter. Jitter reduction exceeds the jitter transfer specified in CCITT G.821. 3.12.1 EXT CLK as TX Clock Source (RS-422 or V.35 Interface) Data must be clocked into the modem by either the SCTE or SCT Source. If EXT CLK is selected as the Tx Clock Source, then SCTE must be supplied to the modem. The output of the dejitter buffer will be clocked with EXT CLK. This case should only be used if SCTE has excessive jitter and will degrade link performance. 3.12.2 SCT or SCTE If SCT is selected, then only data that is synchronous to the SCT Clock is required to be supplied to the modem. It is intended for the terminal equipment to use the SCT as its clock source. The Autophase Circuit will automatically ensure that the data is clocked correctly into the modem. Therefore, a return clock is not necessary. The Clock Polarity should be set to AUTO. If SCTE is selected, then SCTE must be supplied to the modem. The Clock Polarity should be set to AUTO. 3.12.3 G.703 Interface If the G.703 Interface is selected, then the Tx Clock Source must be set to SCTE and the Clock Polarity should be set to AUTO. 3.13 Receive Timing Any of the clocking selections, SCTE, SCT, EXT CLK, or RxSat (SCR) may be selected as the Buffer Clock. Data will be clocked out of the buffer at the data rate synchronous to the selected clock source. 3-12 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem Operation 3.14 Loop Timing If loop timing is desired (i.e.; the modem timing is slaved to the far end master station), the modem clocks can be configured as follows: 3.14.1 Transmit (RS-422 or V.35 Interface) Set SCT Source to ‘SCR’. The Tx Terminal Equipment must clock the TX Data with the SCT Clock and return data and SCTE (Optional). If SCTE is returned to the modem from the terminal equipment, set TX CLK to SCTE. If SCTE is not returned to the modem, set TX CLK to SCT. The TX CLK PHASE should be set to AUTO. 3.14.2 G.703 Interface or Asymmetrical Data Rates Loop timing with a G.703 Interface or Asymmetrical Data Rates requires external equipment at the remote end that is capable of using the recovered RD Clock as source timing for (SCTE) SD. The modem will not manipulate the clock frequency. Therefore, the transmit and receive clock rates must be equal in order for the modem to perform loop timing. 3.14.3 Receive Select the Buffer clock to RxSAT (SCR). 3.15 Drop and Insert (D&I) The Radyne DMD15/DMD15L Drop and Insert (D&I) Function provides an interface between a full T1 or E1 Trunk whose framing is specified in CCITT G.704 and a fractional Nx64 Kbps Satellite Channel that conforms to the IBS and small IDR Framing Structures. The Drop function allows the user to select the terrestrial T1 or E1 timeslots that are to be dropped off for transmission over the link in the specified satellite channels. The Insert function allows the user to select the T1 or E1 timeslots into which the received satellite channels are to be inserted. The two functions are completely independent allowing maximum flexibility in choosing configurations. The four-port G.703 Interface allows one or more modems to be looped together using the same T1 or E1 trunk. The Transmit Data Trunk is brought into the modem via the Send Data In (SDI) Port. From there, the TX Baseband Processor extracts the selected timeslots from the G.704 Frame and prepares them for transmission. The original trunk data is sent out of the modem unaltered via the Send Data Out (SDO) Port. The Receive Data Trunk is brought into the modem via the Insert Data In (IDI) Port. The data is buffered inside the modem and the RX Baseband Processor inserts satellite data into the selected timeslots in the G.704 Frame. The modified terrestrial trunk is then output via the Receive Data Out (RDO) Port. Figure 3-8 shows two modems looped together. This configuration could be simplified to just use one modem, or extended to use more than two modems. Figure 3-9 shows an alternative method of looping where all of the drop (transmit) data is processed prior to performing any insert (receive) processing. In both configurations, the terrestrial trunk is providing the timing for the satellite transmission and for the terrestrial receive. TM051 - Rev. 5.8 3-13 Operation DMD15/DMD15L IBS/IDR Satellite Modem Figure 3-8. Looped Modems Figure 3-9. Looped Modems with Separate D&I Trunks 3-14 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem Operation 3.15.1 Drop Only When Drop is enabled and Insert is disabled, the DMD15/DMD15L performs a drop-only function. Framed E1 or T1 Data is input via the Send Data In Port, the selected timeslots are dropped into the IBS frame structure, and the unaltered terrestrial data is output via the Send Data Out Port (refer to Figure 3-10). Figure 3-10. Drop Only 3.15.2 Insert Only When Insert is enabled and Drop is disabled, the DMD15/DMD15L performs an insert-only function. If framed terrestrial E1 or T1 Data is available, it should be input via the Insert Data In Port. The Terrestrial Data is buffered inside the Modem. The RX Baseband Processor inserts satellite data into the selected timeslots in the G.704 Frame and the modified terrestrial data is then output via the Receive Data Out Port (refer to Figure 3-11). If framed terrestrial data is not available, selection of the Internal T1/E1 frame source will cause the modem to generate the required G.704 Frame. The Satellite Data will be inserted into the selected timeslots, and the resulting terrestrial data will be output via the Receive Data Out Port. Any non-inserted timeslots in the G.704 Frame will be filled with the appropriate Idle Code (refer to Figure 3-12). Figure 3-11. Insert Only with Eternal Frame Source TM051 - Rev. 5.8 3-15 Operation DMD15/DMD15L IBS/IDR Satellite Modem Figure 3-12. Insert Only with Internal Frame Source 3.16 Mode Selection The DMD15/DMD15L D&I can be easily configured to support several commonly used terrestrial data formats. For E1 Data, the user can choose between PCM-30, PCM-30C, PCM-31 and PCM31C. For T1 Data, the user can choose between T1-D4, T1-ESF, and SLC-96. The following paragraphs provide more information on the various mode selection capabilities of the DMD15/DMD15L. 3.16.1 PCM-30 The PCM-30 Mode of Operation supports an E1 Interface with Multiframe Alignment (MFAS) and Channel Associated Signaling (CAS). The user may independently program n timeslots to drop and n timeslots to insert where n = 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, or 30. In addition to the selected drop timeslots, the Transmit Function also extracts the appropriate ABCD signaling bits from terrestrial timeslot 16 for transmission in IBS Frame as required. Conversely, the Receive Function extracts received ABCD signaling bits from the IBS Frame and inserts them in timeslot 16 of the appropriate terrestrial frame. This transmission and reception of ABCD signaling based upon the drop and insert timeslots is performed automatically and is transparent to the user. In PCM-30 mode, the user may not select timeslot 16 as a Drop or Insert Timeslot. 3.16.2 PCM-30C The PCM-30C Mode of Operation supports an E1 Interface with Multiframe Alignment (MFAS) and Channel Associated Signaling (CAS). In addition, the Drop function verifies the received terrestrial CRC checksum and the Insert function calculates the required CRC checksum. The user may independently program n timeslots to drop and n timeslots to insert where n = 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, or 30. In addition to the selected Drop timeslots, the Transmit Function also extracts the appropriate ABCD signaling bits from terrestrial timeslot 16 for transmission in IBS Frame as required. Conversely, the Receive Function extracts received ABCD signaling bits from the IBS frame and inserts them in timeslot 16 of the appropriate terrestrial frame. This transmission and reception of ABCD signaling based upon the Drop and Insert timeslots is performed automatically and is transparent to the user. In PCM-30C Mode, the user may not select timeslot 16 as a Drop or Insert Timeslot. 3.16.3 PCM-31 The PCM-31 Mode of Operation supports an E1 Interface with no Multiframe Alignment (MFAS) or Channel Associated Signaling (CAS). The user may independently program n timeslots to drop and n timeslots to insert where n = 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, or 30. Because there is no implied ABCD signaling, the user is free to select timeslot 16 as a Drop or Insert Timeslot. 3-16 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem Operation 3.16.4 PCM-31C The PCM-31C Mode of Operation supports an E1 Interface with no Multiframe Alignment (MFAS) or Channel Associated Signaling (CAS). In addition, the Drop Function verifies the received terrestrial CRC checksum and the Insert Function calculates the required CRC checksum. The user may independently program ‘n’ timeslots to drop and ‘n’ timeslots to insert where ‘n’ = 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, or 30. Because there is no implied ABCD signaling, the user is free to select timeslot 16 as a Drop or Insert Timeslot. 3.16.5 T1-D4/T1-D4-S The T1-D4 Mode of Operation supports a T1 Interface with 12 frames per multiframe. The user may independently program n timeslots to drop and n timeslots to insert where n = 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, or 30. In the DMD15/DMD15L, Robbed Bit Signaling (RBS) is handled without any need for operator intervention and is transparent to the user. 3.16.6 T1-ESF/ T1-ESF-S The T1-ESF Mode of Operation supports a T1 Interface with 24 frames per multiframe. The CRC-6 checksum is automatically checked by the Drop Function and generated by the Insert Function and placed in the appropriate F-bit positions in the terrestrial multiframe. The user may independently program n timeslots to drop, and n timeslots to insert, where n = 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, or 30. In the DMD15/DMD15L, Robbed Bit Signaling (RBS) is handled without any need for operator intervention and is transparent to the user. 3.16.7 SLC-96 The T1 SLC-96 Mode supports a T1 Interface with 12 Frames per Multiframe (as per T1-D4) with the following exceptions: The signaling frames (Fs bits) are sent twice in succession. During the subsequent four signaling frames, the Fs bits are replaced with data link information bits. The data frame is composed of six signaling frames with a length of 9 msec. The user may independently program n timeslots to drop, and n timeslots to insert, where n = 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, or 30. In the DMD15/DMD15L, Robbed Bit Signaling (RBS) is handled without any need for operator intervention and is transparent to the user. 3.17 Multidestinational Systems Because the Drop and Insert Functions are completely independent, the DMD15/DMD15L easily supports multidestinational communications. Figure 3-13 illustrates a Multidestinational System with one Hub site and three remote sites. At the Hub site, thirty channels are being transmitted to all three remote sites and a fractional set of channels is being received from each remote site. At the other end of the link, each remote site is transmitting a fractional E1 to the Hub site as well as receiving all thirty (30) channels from the Hub site. It also identifies those channels intended for it, and inserts them into the terrestrial data stream. TM051 - Rev. 5.8 3-17 Operation DMD15/DMD15L IBS/IDR Satellite Modem Figure 3-13. Multidestinational Communications 3.17 Drop and Insert Mapping The following displays under Interface D&I Setup (both Tx and Rx), are editing displays only: SATCh TS Enter to Edit Any changes made in these displays are made on the screen, but are not entered into the modem. Once these menus are configured, the Mapping Menu must be used to actually enter the settings into the modem. Example : For a modem w/ Drop & Insert enabled at a data rate of 256 (with timeslots assigned 1-1, 2-2, etc.). At a data rate of 256, the modem will allow 4 channels to assign timeslots to. Under the Tx Menu, assign the timeslots that are to be used to the 4 channels. CH1 is assigned to TS1 (Timeslot #1), CH2 to TS 2, CH3 to TS3 and CH4 to TS4,must be depressed after assigning each individual TS. Once the timeslots are assigned to the channels, use the Left or Right Arrow Key to scroll to the Mapping Menu. This menu will appear in the following way: Map ******* Copy ******* This is the menu where the channel assignments are actually entered into the modem. To do this, perform the following steps: 3-18 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem Operation For the Transmit Side: 1. Push to get the flashing cursor. 2. Use the Up Arrow Key to make the left portion of the display read “TX EDIT”. 3. Use the Right or Left Arrow Keys to switch the flashing cursor to the right portion of the display. 4. Use the Up or Down Arrow Key to make the right hand portion read “TX ACTIVE”. 5. The mapping display should now look like this: Map Copy TX EDIT > TX ACTIVE 6. Push to enter this command. This tells the modem to configure to the settings that were assigned in the Channel/Timeslot display. For the Receive Side: 1. With Rx Side Channels configured as follows: CH1 to TS1, CH2 to TS2, CH3 to TS3 and CH4 to TS4. 2. After the timeslots are assigned properly, scroll to the Mapping Menu and use the above procedure to enter the settings into the modem. 3. Set the display to read: Map Copy RX EDIT > RX ACTIVE 4. Press to enter the settings into the modem. To View the current Timeslot Assignment: 1. If there is a question of the channels not being entered properly, the Mapping Menu may be used to see how the channels/timeslots are configured in the modem. 2. Use and the Arrow Keys to make the mapping menu read (for the Tx Side): Map Copy TX ACTIVE > TX EDIT 3. Press . The modem has now copied the current Tx Settings to the Tx Channel/Timeslot Display. 4. For the Rx Side: Map Copy RX ACTIVE > RX EDIT TM051 - Rev. 5.8 3-19 Operation 5. DMD15/DMD15L IBS/IDR Satellite Modem Press . The modem has now copied the current Rx Settings to the Rx Channel/Timeslot display ). Note: It is not mandatory to assign timeslots in sequential order, although the lowest timeslot must be entered in the lowest channel. For example: timeslots may be assigned 1-2, 2-5, etc. but not 1-5, 2-2. 3.18 Reed-Solomon Codec (Refer to Figures 3-14, 3-15, and Table 3-1) Utilizing a Reed-Solomon (RS) Outer Codec concatenated with a Convolutional Inner Codec is an effective way to produce very low error rates even for poor signal-to-noise ratios while requiring only a small increase in transmission bandwidth. Typically, concatenating an RS Codec requires an increase in transmission bandwidth of only 9 – 12% while producing a greater than 2 dB improvement in Eb/No. RS is a block Codec where K data bytes are fed into the encoder which adds 2t = (N – K) check bytes to produce an N byte RS block. The RS decoder can then correct up to “t” erred bytes in the block. 3.18.1 Operation in the DMD15/DMD15L When the Reed-Solomon Codec is enabled, data is fed to the RS Encoding Section of the DMD15/DMD15L where it is scrambled, formed into blocks, RS encoded, and interleaved. Unique words are added so that the blocks can be reformed in the Receiving Modem (Refer to Figure 3-13). Data is then sent to the modulator where it is convolutionally encoded, modulated and transmitted to the satellite. When the signal is received and demodulated by the Receiving Modem, it is fed to a Viterbi Decoder for the first layer of error correction. After error correction is performed by the Viterbi Decoder, the unique words are located and the data is deinterleaved and reformed into blocks. The RS Decoder then corrects the leftover errors in each block. The data is then descrambled and output from the RS Section. 3.18.2 Reed-Solomon Code Rate The RS Code Rate is defined by (N, K) where N is the total RS block size in bytes - data + check bytes - and K is the number of data bytes input into the RS Encoder. The transmission rate expansion required by the RS Codec is then defined by N/K. The DMD15/DMD15L automatically sets the correct RS code rate for IDR/IBS open network operation in accordance with the data shown in Table 3-1. In Closed Net Mode, the DMD15/DMD15L allows any N or K setting up to N = 255, and K = 235 to allow tailoring of the code rate to meet system requirements. 3.18.3 Interleaving The DMD15/DMD15L allows for interleaving depths of 4 or 8 RS Blocks. This allows burst errors to be spread over 4 or 8 RS blocks in order to enhance the error correcting performance of the RS Codec. For Open Network Modes, the DMD15/DMD15L automatically sets the interleaving depth to 4 for QPSK or BPSK or 8 for 8PSK. In Closed Network Mode, the interleaver depth can be manually set to 4 or 8. Figure 3-14. Reed-Solomon Encoder Functional Block Diagram 3-20 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem Operation Figure 3-15. Reed-Solomon Decoder Functional Block Diagram TM051 - Rev. 5.8 3-21 Operation DMD15/DMD15L IBS/IDR Satellite Modem Table 3-1. Reed-Solomon Codes for IDR 2 Type of Service Data Rate (Kbps) RS Code (n, 1 k, t) Bandwidth Expansion [ (n/k) -1 ] Interleaving Depth Maximum RS Codec Delay (ms) Small IDR (With 16/15 O/H) 64 (126, 112, 7) 0.125 4 115 128 (126, 112, 7) 0.125 4 58 256 (126, 112, 7) 0.125 4 29 384 (126, 112, 7) 0.125 4 19 512 (126, 112, 7) 0.125 4 15 768 (126, 112, 7) 0.125 4 10 1024 (126, 112, 7) 0.125 4 8 1536 (126, 112, 7) 0.125 4 5 1544 (225, 205,10) 0.0976 4 9 2048 (219, 201, 9) 0.0896 4 7 6312 (194, 178, 8) 0.0899 4 2 8448 (194, 178, 8) 0.0899 4 <2 1544 (219, 201, 9) 0.0896 8 18 2048 (219, 201, 9) 0.0896 8 13 6312 (219, 201, 9) 0.0896 8 4 8448 (219, 201, 9) 0.0896 8 3 IDR (With 96 Kbps O/H) 8PSK NOTES: 1. n = code length, k = information symbols and t = symbol error correcting capability. 2. Design objective. 3.19 DMD15 Automatic Uplink Power Control (AUPC Operation) The DMD15 Modem has an optional built-in provision for Automatic Uplink Power Control (AUPC). AUPC attempts to maintain a constant Eb/No at the receive end of an SCPC link. This is especially useful when operating over a satellite at Ku-Band Frequencies in locations with high rainfall periods. Note: An Asynchronous or IBS Interface is required for AUPC. Also, IBS (Async Framing Mode MUST be selected to provide a channel for AUPC operation. 3-22 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem Operation The IBS Async Framer Data Mode provides a service channel between the two sites of a link permitting the modem processors to send messages and get responses over this channel. AUPC can be set to operate on either or both directions of a link but always requires a bi-directional channel. Therefore, both the Modulator and Demodulator interface mode must be set to IBS Async for the AUPC menus to be visible and for the AUPC function to operate properly. The AUPC Functions and their descriptions are shown on Table 3-2. Table 3-2. AUPC Functions Function Description AUPC ENABLE/DISABLE Enables/Disables the AUPC to function locally AUPC Eb/No Desired Eb/N0 of remote modem AUPC MIN LVL Sets minimum output power to be used AUPC MAX LVL Sets maximum output power to be used AUPC DEF LVL Sets default output power to be used Note: The AUPC menus are located under the Modulator Menu as shown in Section 4. The basic AUPC Operation is described as follows: Assume that the two modems, one at each end of the link, are set to AUPC operation. Only one direction is discussed, but the same functions could be occurring in both directions simultaneously. Modem “A” is transmitting to modem “B” under normal conditions and modem “B” has a receive Eb/No of 7.5 dB. Modem “A” has been set to an AUPC Eb/No on the Front Panel of 7.5 dB, and is currently outputting –15 dBm. Next, it begins raining at location “B”, and the Eb/No drops to –7.0 then –6.8 dB. Modem “B” is constantly sending update messages to “A” and reports the current Eb/No. When “A” sees the drop in Eb/No, it slowly begins to raise the output power, and raises it again when it sees further drops. As the rain increases in intensity, and the Eb/No decreases again, “A” continues to increase its power level to compensate, and when the rain diminishes and quits, it lowers its power level to compensate. The operation is therefore a feedback control loop with the added complication of a significant time delay. There are safeguards built into the AUPC System. First, the Modulator has two additional parameters, which allow control of the Maximum and Minimum Power Output Levels. Second, a default power level is specified which takes precedence over the output power level during signal loss or loss of AUPC Channel Communication. The default power level should normally be set to a high enough level to reestablish communication regardless of rain fade. The other controls are built into the operating control software to limit response times and detect adverse operating conditions. TM051 - Rev. 5.8 3-23 Operation DMD15/DMD15L IBS/IDR Satellite Modem 3.20 DMD15 Asynchronous Overhead Operation 3.20.1 Asynchronous Framing/Multiplexer Capability The Asynchronous Framing/Multiplexer is capable of multiplexing a relatively low-speed overhead channel onto the terrestrial data stream resulting in a slightly higher combined or aggregate data rate through the modem. The overhead channel is recovered at the far end. This added channel is termed variously “An Overhead Channel”, ”Service Channel”, “Async Channel” or in IESS terminology an “ES to ES Data Channel.” The basic frame structure used by the multiplexer is that specified in the IESS-309 Standard, resulting in a 16/15 Aggregate to Through-Data Ratio. For Regular Async: (Standard IBS), the Baud Rate is approximately 1/2000 of the Data Rate listed in Table 3-3. For Enhanced Async: (IBS Async.), the Baud Rate is selectable, but Data Rate is limited. The maximum Baud Rate is 19,200 bps for IBS Async. Two software-controlled modes are designed into the card to best utilize the available bits; “Standard IBS” and “IBS (Async)”. The characteristics of the Channel Interface is also determined by the standard or Async mode. The Async Channel can be set under software-control to either RS-232 or RS-485 mode. The pin assignments for both modes are shown in Table 3-3. The “RS-485” Setting controls the output into tri-state when the modem is not transmitting data, allowing multiple modem outputs to be connected together. Table 3-3 3-24 Kbps Baud Rate Example for Standard IBS Kbps Baud Rate Example for Enhanced Mode 128 64 9.6 300 256 128 19.2 600 384 192 32 600 512 256 64 1200 640 320 128 2400 768 384 192 4800 896 448 256 4800 1024 512 320 9600 1152 576 384 9600 1280 640 448 9600 1408 704 512 9600 1536 768 576 9600 1664 832 640 19200 1792 896 704 19200 1920 960 768 19200 1920 960 768 19200 2048 1024 832 19200 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem TM051 - Rev. 5.8 Operation 896 19200 960 19200 1024 19200 1088 19200 1152 19200 1216 19200 1280 19200 1344 19200 1408 19200 1472 19200 1536 19200 1600 19200 1664 19200 1728 19200 1792 19200 1856 19200 1920 19200 1984 19200 2048 19200 3-25 Operation DMD15/DMD15L IBS/IDR Satellite Modem 3.21 Standard IBS Mode In the first or “Normal” mode, all bit assignments are per the IBS standard. The bits of Overhead Housekeeping byte 32 are implemented as shown in Table 3-4 below: Table 3-4. Bit 1 ES to ES Data Channel This bit is routed directly to the ES to ES Data Channel. th th Its data rate is 1/512 of the aggregate rate (or 1/480 of the through terrestrial data rate), and is normally used to super-sample an asynchronous data channel. Bit 2 Frame Alignment Part of the Frame Alignment word. Bit 3 Backward Alarm Transmit and Receive with main processor to activate Main Alarm/LED. Bit 4 Multiframe Message As per IBS. Bits 5 and 6 Spare Not currently utilized. Bits 7 and 8 Encryption Utilization Not currently utilized. The ratio of the Through Terrestrial Data Channel Rate to the aggregate rate is 15/16. The standard transmit and receive channels of the ES to ES Data Channel in Standard IBS Mode are raw channels operating at the specific bit rate as controlled by the data channel rate, without buffering. In addition, no clocks are provided with this channel. Since it would be rare that the data rate provided was exactly that required for a standard rate device, the only method of communicating using this channel is to allow it to super-sample the user data. 3.22 Asynchronous Multiplexer Mode Since many of the frame bits in the standard IBS mode are not used, an “Enhanced” Multiplexer Mode has been implemented that can be engaged under software control. Since this mode changes the use of many of the framed non-data bits, this mode is only usable when the DMD15 is at both ends of a link. In this mode, the overhead signaling bytes 16 and 48 can be used to implement a significantly higher speed ES to ES Data Channel under software control. When th implemented, this rate is 16 times that of the normal IBS standard, or 1/30 of the terrestrial data nd rate (1/32 of the aggregate rate). Note: The IBS Async mode MUST be selected for true Asynchronous channel operation to be available. 3.23 ESC Backward Alarms When running in IDR Mode and if the modem has the ESC Option, there will be four Backward Alarms available for use by the earth stations at each end of the link (both ends must have the ESC option). These alarms are accessed via the ESC ALARMS Port. The four alarms are controlled by four relays, each having a normally open, normally closed, and a common connection. The common connections of these relays (referred to as Backward Alarm Inputs) can be connected to whichever system on the earth station that the user wishes to trigger the backward alarm. When ground is applied to the Common (Input) Connection of one of these relays, that relay and associated backward alarm will then be in a “no fault” state. When the ground is removed, the relay and the associated Tx Backward Alarm will toggle to the faulted state. When in the faulted state, the receive end of the link will receive that backward alarm that is initiated at the transmit end of the link. 3-26 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem Operation The user can connect whichever systems on the earth stations that they desire to these Backward Alarms Relays as long as they will supply ground to the Backward Alarm Relay Input in the “no fault” condition and the ground will be removed in the “faulted” condition. For example: the user could connect the Demod Summary Fault of the modem to the Backward Alarm 1 Input, so that if the demod went into Major Alarm (such as a Carrier Loss), Backward Alarm 1 would be transmitted to the receive end of the link. At the receive end, it would show up as Rx Backward 1 (Receive Backward Alarm 1). 3.23.1 To Disable the ESC Backward Alarms If the ESC ALARMS Port will not be used and the Backward Alarm Indications are to be disabled, connect the following pins of the ESC ALARMS Port: Connect Pins 1, 10, 11, 22 and 23 (connect all together). Pin 1 is ground and Pins 10, 11, 22, and 23 are the inputs of Backward Alarms 1 through 4. By connecting these four pins to ground (Pin 1) the Backward Alarms will be disabled and indicate “PASS” for BK1 through BK4. 3.24 Reacquisition Reacquisition on the DMD15/DMD15L is the ability to reacquire a lost signal from a far end modulator that returns at some point. The DMD15/DMD15L allows the user to program the amount of time (0.0 – 900.0 seconds) that the demodulator will wait for the signal to reappear before searching the entire programmed sweep range for the signal. Additionally, the DMD15/DMD15L allows the user to specify the range (± 0 – 32000 Hz) in which the demodulator will perform the narrow signal search (see Figure 3-16). Configuration can be accomplished via the standard user interfaces (front panel, dumb terminal, remote). TM051 - Rev. 5.8 3-27 Operation DMD15/DMD15L IBS/IDR Satellite Modem Acquire Signal Sweep Delay OPCode 0x2A05 0.0 - 900.0 sec No No Locked Yes Sweep Delay != 0 Yes Track current frequency No Yes Normal operation No Timer Expired Locked Use reacquisition sweep limits to acquire signal Reacquisition limits OPCode 0x2A2F 0 - 32000 Hz Start Delay Timer Yes Go back to normal sweep limits to acquire signal Figure 3-16. Reacquisition flow in the DMD15/DMD15L 3-28 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem TM051 - Rev. 5.8 Operation 3-29 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Section 4 – User Interfaces 4.0 User Interfaces There are three user interfaces available for the DMD15/DMD15L. These are: • • • Front Panel Remote Port Terminal 4.1 Front Panel User Interface The Front Panel of the DMD15/DMD15L allows for complete control and monitor of all DMD15/DMD15L parameters and functions via a keypad, LCD display and status LEDs. The front panel layout is shown in Figure 4-1, showing the location and labeling of the front panel. The front panel is divided into four functional areas: the LCD Front Panel Display, the Cursor Control Arrow Keys, the Numeric Keypad, and the Front Panel LED Indicators, each described below in Table 4-1. Figure 4-1. DMD15/DMD15L Front Panel Table 4-1. Item Number Description Function 1 LCD Front Panel Display Displays DMD15/DMD15L Operating parameters and Configuration data 2 Cursor Control Arrow Keys Controls the up, down, right and left motion of the cursor in the LCD Display window 3 Numeric Keypad Allows entry of numeric data and Clear and Enter function keys 4 Front Panel LED Indicators See Paragraph 4.1.2 below for an itemized description of these LEDs TM051 - Rev. 5.8 4-1 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4.1.1 LCD Front Panel Display The front panel display is a 2 line by 16-character LCD display. The display is lighted and the brightness can be set to increase when the front panel is currently in use. The LCD display automatically dims after a period of inactivity. The display has two distinct areas showing current information. The upper area shows the current parameter being monitored, such as ‘Frequency’ or ‘Data Rate’. The lower line shows the current value of that parameter. The LCD display is a single entry window into the large matrix of parameters that can be monitored and set from the Front Panel. 4.1.2 Cursor Control Arrow Keys A set of ‘Arrow’ or ‘Cursor’ keys (↑), (↓), (→), (←), is used to navigate the parameter currently being monitored or controlled. Table 4-2 describes the functions available at the Front Panel. 4.1.3 Numeric Keypad A 10 Key Numeric Keypad with 2 additional keys for the ‘Enter’ and ‘Clear’ function allows the entry of data into the system. Table 4-2 describes the functions available at the Front Panel. Table 4-2. Edit Mode Key Functions (Front Panel Only) Parameter Type 0–9 ↑ Fixed Point Changes Digit Toggles ± Decimal (If Signed) ↓ ← → ‘Clear’ & ← ‘Clear’ & → Toggles ± (If Signed) Moves Cursor 1 Position Left Moves Cursor 1 Position Right N/A N/A Moves Cursor 1 Position Left Moves Cursor 1 Position Right N/A N/A Unsigned Changes Digit Increments Decrements Hexadecimal Digit Value Digit Value Enumerated N/A Previous Value in List Next Value in List N/A N/A N/A N/A N/A N/A Moves Cursor 1 Position Left Moves Cursor 1 Position Right N/A N/A IP Address Changes Digit Increments Decrements Digit Value Digit Value Moves Cursor 1 Position Left Moves Cursor 1 Position Right N/A N/A Text Strings Moves Cursor 1 Position Left Moves Cursor 1 Position Right Clears to Left of Cursor Inclusive Clears to Right of Cursor Inclusive Date/ Time Changes Digit 4-2 Changes Character Increments Decrements Character Character Value Value TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces 4.1.4 Front Panel LED Indicators Eight LEDs on the DMD15/DMD15L Front Panel (Refer to Table 4-3) indicate the status of DMD15/DMD15L operation. The LED colors maintain a consistent meaning. Green signifies that the indication is appropriate for normal operation, Yellow means that there is a condition not proper for normal operation, and Red indicates a fault condition that will result in lost communications. Table 4-3. LED Color Function Modem LED Indicators Power Green Indicates that the unit is turned on. Fault Red Event Yellow Indicates that a condition or event has occurred that the modem has stored in memory. The events may be viewed from the Front Panel or in the Terminal Mode. Remote Green Indicates that the unit is set to respond to the remote control input. Indicates a hardware fault for the unit. Demodulator LED Indicators Signal Lock Green Indicates that the receiver locked to an incoming carrier and data, including FEC Sync. Major Alarm Red Indicates that the Receive Direction has failed, losing traffic. Minor Alarm Yellow Indicates that a Receive Warning Condition exists. Test Mode Yellow Indicates that the receiver is involved in a current Test Mode activity. Modulator LED Indicators Transmit ON Green Indicates that the transmitter is on. Major Alarm Red Minor Alarm Yellow Indicates that a Transmit Warning Condition exists. Test Mode Yellow Indicates that the transmitter is involved in a current Test Mode activity. Indicates that the terrestrial data and/or clock is not being supplied to the unit. 4.2 Parameter Setup The four Cursor Control Arrow Keys are used to navigate the menu tree and select the parameter to be set. After arriving at a parameter that needs to be modified, depress . The first space of the modifiable parameter highlights (blinks) and is ready for a new parameter to be entered. After entering the new parameter using the keypad (Refer to Figure 4-2), depress to lock in the new parameter. If a change needs to be made prior to pressing , depress and the display defaults back to the original parameter. Depress again and re-enter the new parameters followed by . Following a valid input, the DMD15/DMD15L will place the new setting into the nonvolatile EEPROM making it available immediately and available the next time the unit is powered-up.’ TM051 - Rev. 5.8 4-3 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem Figure 4-2. Entering New Parameters 4.3 Front Panel Control Screen Menus The DMD15/DMD15L Front Panel Control Screens are broken down into sections under several Main Menus. 4.3.1 Main Menus Modulator Demodulator Interface Monitor Alarms System Test 4.3.2 Modulator Menu Options and Parameters Mode: {IDR, IBS, Closed Net, Drop & Insert} Used with IDR, or IBS Interface Only. The Mode Command sets a number of parameters within the modem to meet a set specification. The purpose is to eliminate keystrokes and potential compatibility problems. Additionally, data rates not covered by the given mode of operation will not be allowed. If the mode of operation is selected after the data rate has been entered, then the data rate must be compatible with the desired mode of operation or the mode will not be allowed. The following parameters are set for the given mode of operation and 4-4 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces cannot be changed while the unit is in the given mode of operation: IDR Mode: (IESS-308) For Data rates 1.544, 2.048, 6.312, 8.448 Mbps Framing Type: 96 Kbps (IDR) Scrambler Type: V.35 Spectrum Mask: Intelsat For Data Rates < 1.544 Framing Type: 1/15 (IBS) Scrambler Type: IESS-309 Spectrum Mask: Intelsat IBS Mode: (IESS-309) For Data Rates < 2048 Framing Type: 1/15 (IBS) Scrambler Type: IESS-309 Spectrum Mask: Intelsat Closed Net: All possible combinations allowed. Activates the AUPC Menu. Drop & Insert: Data Rates: Framing Type: Scrambler Type: Spectrum Mask: TM051 - Rev. 5.8 n x 64 n = 1, 2, 3, 4, 5, 6, 8, 10,12, 15, 16, 20, 24, 30 1/15 (IBS) IESS-309 Intelsat 4-5 User Interfaces Strap Code: DMD15/DMD15L IBS/IDR Satellite Modem {Refer to Strap Code Guide, Table 4-4} The Strap Code is a quick set key that sets many modem parameters. Consult the strap code guide for available strap codes. Parameters set by strap code: Data Rate Code Rate Mode Frame Type Scrambler Type Spectrum Mask Mod IF (menu): 4-6 Frequency: {50 – 90 MHz, 100 – 180 MHz, or 950 – 1750 MHz (LBand)} Allows the user to enter the Modulator IF Frequency in 1 Hz increments. Power: {+5 to –20 dBm} {-5 to –30 L-Band} Allows the user to enter the Transmitter Power Level. The DMD15 has a digital/analog crossover point at -7.4 to -7.5 dBm (-17.4 to -17.5 dBm L-Band) when the output power level setting crosses this threshold, the modulator may glitch and undershoot the output momentarily. Carrier Ctrl: {On, Off} The DMD15 transmitter will turn off the carrier output automatically when the modem determines there is a major alarm. This is done to prevent the carrier from outputting an unknown spectrum and possibly disturbing adjacent carriers. This automatic drop of the carrier can be overridden by masking the alarm that is causing the fault. This will keep the modulator output spectrum transmitting, even when the fault occurs. Spectrum Inv: {Normal, Inverted} Allows the user to invert the direction of rotation for PSK Modulation. Normal meets the IESS Specification. Modulation: {QPSK, BPSK, OQPSK, 8PSK, 16QAM} Allows the user to select the modulation type. Spectrl Msk: {Intelsat} Allows the user to set the spectral shape of Tx Data Filter. TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Mod Data (menu): Data Rate: {Refer to Technical Specs for Data Rates} Allows the user to set the Data Rate in bps steps via the Front Panel Arrows or Keypad. Symbol Rate: Allows the user to view the Symbol Rate. Conv Enc: {1/2 Rate VIT, 3/4 Rate VIT, 7/8 Rate VIT, Optional encoders: 1/2 Rate SEQ, 3/4 Rate SEQ , 7/8 Rate SEQ , 2/3 Rate TRE (8PSK), Turbo (.793), Turbo (.495), 3/4 Rate CSC} Allows the user to select the Tx Code Rate and Type. Diff Encode: {On, Off, EF Mode*} Allows the user to enable or disable the Differential Encoder. Having the encoder enabled ensures proper phase lock. *EF Mode is a special differential encoder mode that allows compatibility with certain modems when configured in QPSK modulation, and uncoded FEC. Scrmbl Sel: {None, V.35-IESS, V.35 CITT, V.35 EF, IBS, CCITT, V.35FC, OM73, V.35EF_RS, TPC SCRAMBLER(Turbo Codec)} Allows the user to select the scrambler type. Scrmbl Ctrl: Allows the user to enable or disable scrambler operation. Mod Framing: {1/15 (IBS), 1/15 (Async), 96 Kbps (IDR), None} Used with IDR, IBS, or Asynchronous Interface Only. Allows the user to select the framing type. Data Invert: {Terr, Base, Terr & Base} Allows the user to invert the Tx Data polarity. Symbol Pair: {None, Swapped} Allows the user to swap the I&Q Channels. (BPSK Mode Only) Reed-Solomon (menu): These selections are visible only when the ReedSolomon Option is installed. Enable/Disable {Enable, Disable} Allows the user to Enable/Disable the Reed-Solomon Encoder. RS Codes {Refer to Appendix A for valid n/k values} Displays the currently used n, k Reed-Solomon Codes. In Closed Net Mode, the user may select custom RS Codes. RS Depth {4, 8} Allows the user to select the Reed-Solomon interleaver depth. In Closed Net Mode, a depth of 4 or 8 may be selected. TM051 - Rev. 5.8 4-7 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4.3.3 Demodulator Menu Options and Parameters Mode: {IDR, IBS, Closed Net, Drop & Insert} Used with IDR, or IBS Interface Only. The Mode Command sets a number of parameters within the modem to meet a set specification. The purpose is to eliminate keystrokes and potential compatibility problems. Additionally, data rates not covered by the given mode of operation will not be allowed. If the mode of operation is selected after the data rate has been entered, then the data rate must be compatible with the desired mode of operation or the mode will not be allowed. The following parameters are set for the given mode of operation and cannot be changed while the unit is in the given mode of operation: IDR Mode: (IESS-308) For Data rates 1.544, 2.048, 6.312, 8.448 Mbps Framing Type: 96 Kbps (IDR) Descrambler type: V.35 Spectrum Mask: Intelsat For Data Rates < 1.544 Mbps Framing Type: 1/15 (IBS) Descrambler Type: IESS-309 Spectrum Mask: Intelsat IBS Mode: (IESS-309) For Data Rates < 2.048 Mbps Framing Type: 1/15 (IBS) Descrambler Type: IESS-309 Spectrum Mask: Intelsat Closed Net: All possible combinations allowed Drop & Insert: Data Rates: Framing Type: Descrambler Type: Spectrum Mask: Strap Code: n x 64, n = 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30 1/15 (IBS) IESS-309 Intelsat {Refer to Strap Code Guide, Section 4.3, Table 4-4} The Strap Code is a quick set key that sets many modem parameters. Consult the strap code guide for available strap codes. Parameters set by strap code: Data Rate Code Rate Mode Frame Type Scrambler Type Spectrum Mask 4-8 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Demod IF (menu): Frequency: {50 – 90 MHz, 100 – 180 MHz, or 950 – 1750 MHz (LBand)} Allows the user to enter the Modulator IF Frequency in 1 Hz increments. Spectrum Inv: {Normal, Inverted} Allows the user to invert the direction of rotation for PSK Modulation. Normal meets the IESS Specification. Demodulation: {QPSK, BPSK, OQPSK, 8PSK, 16QAM} Allows the user to select the demodulation type. Spectrl Msk: {Intelsat} Allows the user to set the spectral shape of Tx Data Filter. Swp Bound: {±0 – 32 kHz} Allows the user to set the acquisition range for the demodulator Swp Delay: {0.0 – 900.0 sec} Allows the user to set the reacquisition delay time in th 1/10 second increments. (See section 3.24 for a complete description of the DMD15/DMD15L reacquisition. ReAcq Sweep: {0 – 32000 Hz} Allows the user to set the reacquisition sweep in 1 Hertz increments. (See section 3.24 for a complete description of the DMD15/DMD15L reacquisition. TM051 - Rev. 5.8 4-9 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem Demod Data (menu): 4-10 Data Rate: {Refer to Technical Specs for Data Rates} Allows the user to set the Data Rate in bps steps via the Front Panel Arrows or Keypad. Symbol Rate: Allows the user to view the Symbol Rate. Conv Dec: {1/2 Rate VIT, 3/4 Rate VIT, 7/8 Rate VIT, Optional encoders 1/2 Rate SEQ, 3/4 Rate SEQ , 7/8 Rate SEQ , 2/3 Rate TRE (8PSK), Turbo (.793), Turbo (.495), 3/4 Rate CSC} Allows the user to select the Tx Code Rate and Type. Diff Decode: {On, Off, EF Mode*} Allows the user to enable or disable the Differential Decoder. Having the decoder enabled ensures proper phase lock. *EF Mode is a special differential decoder mode that allows compatibility with certain modems when configured in QPSK modulation, and uncoded FEC. Dscrmbl Sel: {None, V.35-IESS, V.35 CITT, V.35 EF, IBS, CCITT, V.35FC, OM73, V.35EF_RS, TPC SCRAMBLER (Turbo Codec)} Allows the user to select the descrambler type. Dscrmbl Ctrl {On, Off} Allows the user to enable or disable the descrambler operation. Dmd Framing: {1/15 (IBS), 1/15 (Async), 96 Kbps (IDR), None} Used with IDR, IBS, or Asynchronous Interface Only. Allows the user to select the Framing Type. Data Invert: {Terr, Base, Terr & Base} Allows the user to invert the Rx Data polarity. Symbol Pair: {None, Swapped} Allows the user to swap the I&Q Channels. (BPSK Mode Only) TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem Reed-Solomon (menu): User Interfaces These selections are visible only when the ReedSolomon Option is installed. Enable/Disable {Enable, Disable} Allows the user to Enable/Disable the Reed-Solomon Encoder. RS Codes {Refer to Appendix A for valid n/k values} Displays the currently used n, k Reed-Solomon Codes. In Closed Net Mode, the user may select custom RS Codes. RS Depth {4, 8} Allows the user to select the Reed-Solomon interleaver depth. In Closed Net Mode, a depth of 4 or 8 may be selected. 4.3.4 Interface Menu Options and Parameters Tx Setup (menu): Tx Ckt ID: Allows the user entry of a Tx Circuit Identifier. Circuits can be given up to an 11 Character alphanumeric identity such as LINK1. Tx Type: {G.703, V.35, RS-232, RS-422} Allows the user to select the Transmit Type. Tx Clock: {SCTE (External), SCT (Internal), SCR, EXT CLK} Allows the user to select the Transmit Clock Source. Clk Polarity: {Auto, Normal, Inverted} Allows the user to select the Clock Polarity for the Tx Terrestrial Clock relative to the Tx Data. “Auto” detects wrong polarity and automatically corrects. If G.703 Interface is selected, this selection cannot be changed. SCT Source: {INTERNAL (SCT), SCR (Rx SAT CLK)} Allows the user to select SCT Source to be either the SCT Oscillator or RX Satellite Clock. Rx SAT CLK is used for loop timing. ESC CH#1 {+10 to -20} Available only in IDR Mode at a valid IDR Rate. Controls the volume of the ESC Channels. ESC CH#2 See above. TM051 - Rev. 5.8 4-11 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem Tx D&I (menu): Drop Mode: {Enable, Disable} Allows the user to enable or disable the following: T1-D4, T1-ESF, PCM-30, PCM-30C, PCM-31, PCM-31C, SLC-96, T1-D4-S, T1-ESF-S. Map Copy: {Rx Edit, Tx Edit, Rx Acti, Tx Acti, ROM 1…ROM 8, User 1…User 8} Allows user to copy Drop and Insert maps. If the user attempts an invalid copy, the error prompt “BAD DESTINATION” will be displayed and the copy will not be allowed. The Tx Active map is the drop map currently being used by the modem. For a more detailed description of this function, see Section 4.6.4. SATCh TS: Allows the user to edit the Tx Edit Map to specify the terrestrial slots that will be dropped into which satellite channels. The Satellite Channels are fixed and the number of channels are determined by the data rate. The Terrestrial Timeslots available are determined by the Drop Mode. When the user has finished editing the Tx Edit map, it must be copied to the Tx Active map before it can be used by the modem. Time Mark: {Enable, Disable} Allows the user to enable or disable the “Time Mark Transfer” (TMT) Transmit Request External Input to initialize the state machine that detects the proper states of I and Q and inserts the TMT Pattern into the transmit symbol stream. This feature is only available in BPSK, QPSK, and OQPSK Modulations and requires specific hardware and configuration at the factory. TMT Length: {4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16} Allows the user to set the length of the pattern marker. This feature is only available in BPSK, QPSK, and OQPSK Modulations and requires specific hardware and configuration at the factory. Rx Setup (menu): 4-12 Rx Ckt ID: Provides entry of Rx Circuit Identifier. Circuits can be given up to an 11 Character alphanumeric Identity such as DLINK1 Rx Type: {G.703 (Balanced/Unbalanced), V.35, RS-232, RS422} Allows the user to select the Receive Type. Buff Size: {0-32 msecs} Allows the user to set the Doppler Buffer Size in msec. Buff Clk: {SCTE (External), SCT (Internal), Rx Sat, EXTCLK} TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Allows the user to select the buffer clock source. Must set Buff size to zero to bypass. Clk Polarity: {Normal, Inverted} Allows the user to select the Buffer Clock Polarity for the Tx Terrestrial Clock relative to the Tx Data. If G.703 Interface is selected, this selection cannot be changed. Rx D&I (menu): Insert Mode: {Enable, Disable} Allows the user to enable or disable the following: T1-D4, T1-ESF, PCM-30, PCM-30C, PCM-31, PCM31C, SLC-96, T1-D4-S, T1-ESF-S. T1E1 Frm Src {Internal, External} Selects frame source for T1 or E1 framing. Map Copy: {Rx Edit, Tx Edit, Rx Acti, Tx Acti, ROM 1…ROM 8, User 1…User 8} Allows user to copy Drop and Insert maps. If the user attempts an invalid copy, the error prompt “BAD DESTINATION” will be displayed and the copy will not be allowed. The Rx Active map is the drop map currently being used by the modem. For a more detailed description of this function, see Section 4.6.4. SATCh TS: Allows the user to edit the Tx Edit Map to specify the terrestrial slots that will be dropped into which satellite channels. The Satellite Channels are fixed and the number of channels is determined by the data rate. The Terrestrial Timeslots available are determined by the Drop Mode. When the user has finished editing the Tx Edit map, it must be copied to the Tx Active map before it can be used by the modem. TMT Length: {4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16} Allows the user to set the length of the pattern marker. This feature is only available in BPSK, QPSK, and OQPSK Modulations and requires specific hardware and configuration at the factory. General: Freq Ref Src: {Internal, External, High Stability} Allows the user to select the Frequency Reference Source. Async (menu): TM051 - Rev. 5.8 ES Mode: {Normal, Enhanced (option)} Allows user to choose between Normal and Enhanced Async Mode if the enhanced option is available. ES Interface: {RS-232, RS-485} Allows user to select between RS-232 or -485 4-13 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem ES Baud: {150-19200} Allows the user to select the baud rate in Enhanced Async mode. Available rates are listed in Sect 3.20.1 ES Data Bits: {7,8} Allows the user to choose between 7 or 8 bit data. 4.3.5 AUPC Menu Options and Parameters Note: AUPC Menus are only available when the Modulator is in ‘Closed Net’ Mode and Framing is ‘EFAUPC 1/15’. Local AUPC (menu): 4-14 The 'LOCAL AUPC CONFIGURATION' Menu contains the local configuration parameters for the AUPC Function. AUPC Enable: {Off, On} Allows the user to enable or disable the Local AUPC Function of the local modem. The Local AUPC Function is the response to the commands for an increase or decrease of the Transmit Power in 0.5 dB steps. The command to change to the setting is indicated in the 'REMOTE CL ACTION' Menu upon receiver loss of lock of the remote modem. Nominal TX Power: {variable through power range} Allows the user to set the nominal Transmit Power. The nominal Transmit Power is the setting that will be used when the remote modem indicates that its receiver has lost lock and commands a change to the setting indicated in the 'REMOTE CL ACTION' Menu. That change will only be implemented if the 'REMOTE CL ACTION' Menu is set to “NOMINAL”. Minimum TX Power: {variable through power range} Allows the user to set the minimum Transmit Power. The minimum Transmit Power is the lowest power setting that will be used when the remote modem commands a decrease of the Transmit Power. Maximum TX Power: {variable through power range} Allows the user to set the maximum Transmit Power. The maximum Transmit Power is the highest power setting that will be used when the remote modem commands an increase of the Transmit Power. It is the setting that will be used when the remote modem indicates that its receiver has lost lock and commands a change to the setting indicated in the 'REMOTE CL ACTION’, Menu. That change will only be implemented if the 'REMOTE CL ACTION' Menu is set to “MAXIMUM”. Target Eb/No: {variable} Allows the user to set the desired Eb/No for the local receiver. This setting is compared against the receive TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Eb/No and commands to the remote modem to increase or decrease Transmit Power accordingly are sent. Tracking Rate: {0.5 to 6.0} Allows the user to set the rate at which the commands to increase or decrease Transmit Power are sent. Each command will result in a 0.5-dB increase or decrease in Transmit Power from the remote transmitter. The tracking rate is adjustable from 0.5 dB per minute to 6.0 dB per minute in 0.5 dB steps. The resulting 'command rate' is 1 command every minute to 1 command every five seconds. Local CL Action: {HOLD, NOMINAL, MAXIMUM} Allows the user to set the Transmit Power Setting to be used when the local modem receiver loses lock. The setting can be 'HOLD' (no action taken), 'NOMINAL' (the nominal Transmit Power Setting is used), and 'MAXIMUM' (the maximum Transmit Power Setting is used). Remote CL Action: {HOLD, NOMINAL, MAXIMUM} Allows the user to set the Transmit Power Setting to be used when the remote modem receiver loses lock. The setting can be 'HOLD' (no action taken), 'NOMINAL' (the nominal Transmit Power Setting is used), and 'MAXIMUM' (the maximum Transmit Power Setting is used). TM051 - Rev. 5.8 4-15 User Interfaces Remote AUPC (menu): AUPC Enable: DMD15/DMD15L IBS/IDR Satellite Modem The 'REMOTE AUPC CONFIGURATION' menu contains the remote configuration parameters for the AUPC Function. {OFF, ON} Allows the user to enable or disable the AUPC Function of the remote modem. The remote AUPC Function is the response of the local modem to commands for an increase or decrease of the Transmit Power in 0.5 dB steps and the command to change to the setting indicated in the 'REMOTE CL ACTION' menu of the remote modem upon receiver loss of lock. Loopback: Allows the user to enable or disable the Baseband Loopback Test Mode of the remote modem. TX 2047 Pattern: Allows the user to enable or disable the Transmit 2047 Pattern Test Mode of the remote modem. Remote AUPC Monitor: Remote 2047 BER: The ‘REMOTE AUPC MONITOR’ Menu contains the remote monitor status for the AUPC Function. Reports the BER measurement of the receiver 2047 Pattern Test Mode of the remote modem. BER is -5 -7 reported from the 1x10 to 1x10 in tenth decade steps. If the pattern does not synchronize or is out of range, ‘NO DATA’ will be displayed. 4.3.6 Monitor Menu Options and Parameters Level: Displays the estimated receive signal level as seen by the Demodulator. Eb/No: Displays the estimated Eb/No as seen by the demodulator. SER: Displays the estimated channel error rate (before decoding) measured by the modem. CBER: Displays the estimated corrected bit error rate (after decoding). Error Count: Displays the current error count from the Viterbi Decoder. Offset Freq: Displays the received carrier frequency offset as measured by the modem. 4-16 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Event Buff: Displays a history of events recorded in the event buffer. A maximum of 40 events may be stored in the buffer. st Upon receipt of the 41 event, the first received event is automatically deleted, and so on, maintaining the maximum 40 events. Press Clr to Erase Events: Clears the contents of the Event Buffer. Voltages (menu): +5 Volt: Displays the measured voltage of the +5 Volt power bus located inside the modem. +12 Volt: Displays the measured voltage of the +12 Volt power bus located inside the modem. -12 Volt: Displays the measured voltage of the -12 Volt power bus located inside the modem. Buffer: Displays the status of the Doppler Buffer from 0 to 100%. Press Clr to Center Buffer: Causes Doppler Buffer to re-center. BER Exponent: {6 - 9} Allows the user to set the time base for the Channel Error Rate Measurement, used to estimate Eb/No. 4.3.7 Alarms Menu Options and Parameters Active Alrms (menu): Masking alarms may cause undesirable modem performance. Major Tx (menu): TxuProc Mask: Status Edit Table {Pass/Fail, No/Yes} Indicates a Hardware Transmit or DSP Failure within the modem. (Yes = Masked, No = Unmasked) TM051 - Rev. 5.8 TxPower Mask: {Pass/Fail, No/Yes} Indicates that the Modem Tx Output Power is within allowed tolerance. A solid indication indicates a hardware or programming failure within the modem. TxOSClk Mask: {Pass/Fail, No/Yes} Indicates that the TX Oversample Clock PLL is not locked. This alarm will flash on during certain modem 4-17 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem parameter changes. A solid indication indicates a hardware or programming failure within the modem. CompClk Mask: {Pass/Fail, No/Yes} Indicates that Tx Composite Clock PLL is not locked. This alarm will flash on during certain modem parameter changes. A solid indication indicates a problem with the incoming clock to the modem (SCTE). TxSynth Mask: {Pass/Fail, No/Yes} Indicates that the Tx IF Synthesizer is not locked. This alarm will flash on during certain modem parameter changes. A solid indication indicates a hardware or programming failure within the modem. Major Rx (menu): RxuProc Mask: {Pass/Fail, No/Yes} Indicates a hardware failure within the modem. SigLoss Mask: {Pass/Fail, No/Yes} Indicates that the demod is unable to lock to a signal. MfrSync Mask: {Pass/Fail, No/Yes} Indicates that the Framing Unit is unable to find the expected framing pattern. FrmSync Mask: {Pass/Fail, No/Yes} Indicates that the Framing Unit is unable to find the expected framing pattern. IF Syn Lock: {Pass/Fail, No/Yes} Indicates the Rx IF Synthesizer is not locked. This alarm will flash ON during certain modem parameter changes. A solid indication indicates a hardware or programming failure within the modem. Rx Ovrsmp Lk: {Pass/Fail, No/Yes} Indicates that the RX Oversample Clock PLL is not locked. This alarm will flash on during certain modem parameter changes. A solid indication indicates a hardware or programming failure within the modem. Buf Clk Lock: {Pass/Fail, No/Yes} Indicates that the Buffer Clock PLL is not locked. This alarm will flash ON during certain modem parameter changes. A solid indication indicates a problem with the Receive Buffer Clock. Minor Tx (menu): Tx Activity (menu): 4-18 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces TerrClk Mask: {Pass/Fail, No/Yes} Indicates no Terrestrial Clock activity. IntClk Mask: {Pass/Fail, No/Yes} Indicates no SCT Clock activity. TxSatCk Mask: {Pass/Fail, No/Yes} Indicates no Tx Sat Clock activity. Tx Data Mask: {Pass/Fail, No/Yes} Indicates no Tx Data activity. TerrAIS Mask: {Pass/Fail, No/Yes} Indicates that AIS has been detected in the Tx Data Stream. Drop Alarms (menu): Frm Lock: {Pass/Fail, No/Yes} Indicates if drop/insert data is frame locked. Multiframe Lock: {Pass/Fail, No/Yes} Indicates if drop/insert data has multiframe lock. CRC Lock: {Pass/Fail, No/Yes} Indicates if the Circular Redundancy Check is passing in PCM30C and PCM31C Mode. RS FIFO: {Pass/Fail, No/Yes} Indicates status of the Tx Reed-Solomon FIFO. FllBack: {Pass/Fail, No/Yes} Indicates Tx clock fallback. Minor Rx (menu): BufUFLw Mask: {Pass/Fail, No/Yes} Indicates that a Doppler Buffer underflow has occurred. BufOFLw Mask: {Pass/Fail, No/Yes} Indicates that a Doppler Buffer overflow has occurred. Buf <10% Mask: {Pass/Fail, No/Yes} Indicates that the Doppler Buffer is about to underflow. Buf >90% Mask: {Pass/Fail, No/Yes} Indicates that the Doppler Buffer is about to overflow. Viterbi Lock: {Pass/Fail, No/Yes} Indicates that the Viterbi Decoder is not locked. Eb/No Mask: {Pass/Fail, No, Yes} Indicates that the calculated Eb/No of the incoming signal has fallen below the programmed threshold value. Rx Activity (menu): TM051 - Rev. 5.8 4-19 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem Buf Clk Mask: {Pass/Fail, No/Yes} Indicates that the selected buffer clock source is not active. Rx Sat Mask: {Pass/Fail, No/Yes} Indicates that the Rx Sat buffer clock source is not active. Insert Mask: {Pass/Fail, No/Yes} Indicates that the Insert buffer clock source is not active. RX Data Mask: {Pass/Fail, No/Yes} SatAIS Mask: {Pass/Fail, No/Yes} Insert Alarms (menu): Frm Lock Mask: {Pass/Fail, No/Yes} Multiframe Lock: {Pass/Fail, No/Yes} CRC Lock Mask: {Pass/Fail, No/Yes} T1 Signaling: {Pass/Fail, No/Yes} Rx RS Faults (menu): Dec Lock Mask: {Pass/Fail, No/Yes} Indicates status of the Reed-Solomon Decoder Lock Dintlvr Mask: {Pass/Fail, No/Yes} Indicates status of the Reed-Solomon de-interleaver word fault UnCWord Mask: {Pass/Fail, No/Yes} Indicates status of the Reed-Solomon uncoded word fault. IBS BER Mask: {Pass/Fail, No/Yes} Indicates that more than 1 bit in 1000 is in error in IBS Mode. RxLvl Mask: {Pass/Fail, No/Yes} Indicates if Rx level is below allowable limits. Fllback Mask: {Pass/Fail, No/Yes} Indicates Rx Clock fallback. Common (menu): -12 Power: 4-20 {Pass/Fail, No/Yes} Indicates power supply voltage out of range. TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem TM051 - Rev. 5.8 User Interfaces +12 Power: {Pass/Fail, No/Yes} Indicates power supply voltage out of range. +5 Power: {Pass/Fail, No/Yes} Indicates power supply voltage out of range. Battery: {Pass/Fail, No/Yes} Indicates that internal clock battery is low. RAM/ROM: {Pass/Fail, No/Yes} Indicates M&C memory fault. M&C uProc: {Pass/Fail, No/Yes} Indicates M&C Microprocessor hardware failure. UIO Present: {Pass/Fail, No/Yes} Indicates absence of Universal Input/Output Module (UIM) Hardware IF Present: {Pass/Fail, No/Yes} Indicates absence of IF hardware detect. Ext Ref Lock: {Pass/Fail, No/Yes} Indicates that the External Reference PLL is not locked. Ext EXC Act: {Pass/Fail, No/Yes} Indicates that the External Clock is not active. 4-21 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem Ext Ref Mask: {Pass/Fail, No/Yes} Indicates no activity on the External Reference. HiStab Mask: {Pass/Fail, No/Yes} Indicates if High Stability Oscillator is active. Latched Alrm (menu): The following alarms are latched in order to catch intermittent failures: Note: Refer to Section 4.2.7, “Active Alrms (menu)” for an explanation of these Menu Options and Parameters. Major Tx (menu): TxuProc: TxPower: TxOSClk: CompClk: TxSynth: Major Rx (menu): RxuProc: SigLoss: MfrSync: FrmSync: IBS BER: RxIFSynLock: RxOSPLLLock: Buf Clk Lock: Minor Tx (menu): 4-22 There are currently no Latched Minor Tx alarms. TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Minor Rx (menu): RxBuf Alarms (menu): BufUFlw: BufOFLw: Buf<10%: Buf>90%: Rx Activity (menu): RxSat: RxData: SatAIS: InsClk: Common (menu): -12 Power: +12 Power: +5 Power: Battery: RAM/ROM: M&C uProc: Ext Ref Lock: Backward Alr (menu): Backward alarms are alarms that are fed back to or received from the other end of the satellite link. In IBS Mode (including Drop & Insert), Backward Alarm 1 is the only one used. It would be received if the distant end demod drops lock. Backward 1: {Rcv = yes/no, Force = yes/no} Backward 2: {Rcv = yes/no, Force = yes/no} Backward 3: {Rcv = yes/no, Force = yes/no} Backward 4: {Rcv = yes/no, Force = yes/no} DIYellow: {Force = yes/no} MapSummaryTo (menu): Backward 1: TM051 - Rev. 5.8 {Xmt = no/yes} 4-23 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem Backward 2: {Xmt = no/yes} Backward 3: {Xmt = no/yes} Backward 4: {Xmt = no/yes} Clear Alarms: Allows the user to reset the latched alarms. 4.3.8 System Menu Options and Parameters Control Mode: {Front Panel, Terminal, Computer} Allows the user to select the active control source. Config Copy Allows settings in Config 1-5 or current settings to be copied into another config slot. General (menu): Date: {YY MM DD} Allows the user to enter the current date. Time: {HH:MM:SS} Allows the user to enter the current time. Backlight (menu): 4-24 Level: {High, Low} Allows the user to enter the backlight intensity level. Timeout: {00 - 99} Allows the user to enter the length of time (in seconds) of keyboard inactivity before the backlight shuts off. 00 = no timeout. Key Click: {On, Off} Allows the user to enable or disable the audible click heard each time a key is pressed. Eb/No Alarm Thrsh {0.0 – 9.9 dB} The EB/No Threshold is a value set by the user to allow the modem to alert thr user, via a demodulator minor alarm, that the Eb/No calculated by the demodulator has reached or exceeded the programmed limit. The modem default value is 0.0 dB. Radyne DMD15 Version X.X: Modem Version TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Firmware Rev (menu): Interface (menu): UIO Code: UIO Xilinx: M&C: Term Baud: {Same as remote baud listed below} Displays the Terminal Port Baud Rate. Emulation: {VT100, ADDS-VP, WYSE 50} Allows the user to select the Terminal Emulation Mode for the Terminal Port. Remote Addr: {32 - 255} Allows the user to enter the Remote Port Multidrop Address. Remote Baud: {150, 300, 600, 1200, 2400, 4800, 9600, 19200, 38,400} Allows the user to enter the Remote Port Baud Rate. 4.3.9 Test Menu Options and Parameters 2047 Test: {None, Tx, Rx, Tx/Rx} Allows the user to enable or disable the 2047 Pattern Test. “Tx” enables the transmit pattern generator. “Rx” enables the receive pattern checker. “Tx/Rx” enables both. Insert Errors: {0000 - 9999} Allows the user to select the number of errors to insert. Once the number of errors to insert has been selected, pressing ‘Enter’ twice causes the number of errors shown to be inserted in the data stream. 2047 Errors: {No Sync, nnnn} Displays the number of errors detected by the 2047 Pattern checker. 2047 BER: {No Sync, nnnn x 10 } Displays the measured BER for the 2047 Pattern. Clear 2047: {Ent = Y, Clr = N} Restarts 2047 BER Test. TM051 - Rev. 5.8 -9 4-25 User Interfaces Loopbacks: DMD15/DMD15L IBS/IDR Satellite Modem Terrestrial Loopback is performed at the Terrestrial Interface IF: IF loopback loops the IF output of the Modulator to the IF input of the Demodulator. If using 8PSK or 16QAM modulation the output power must be above –15 dB. Tx Terr: Sends Tx Terrestrial Data to Rx data out. Rx Terr: (Distant Loop) Sends received satellite data to the Modulator for transmission to the distant end. Tx/Rx Terr: Enables both. Baseband loopback is performed at interface between the Baseband Processor Card and the Modem Card. This ensures Framer/Deframer integrity. Tx BB: Sends Tx data to the receive input to the BB Card. Rx BB: Sends Rx data from the Modem Card to the Tx data input to the Modem Card. Tx/RX BB: Enables both. CW: Causes the Modulator to output a pure carrier. Dual: Causes a double sideband output. Offset: Causes a single sideband output. Normal: Causes the Modulator to output normal modulation. Pos Fir: For manufacturer’s use only. Neg Fir: For manufacturer’s use only. Carrier: 4.4 DMD15/DMD15L Strap Codes The Strap Code is a quick set key that sets many of the modem parameters. For quick setup of the DMD15/DMD15L, Strap Codes are very helpful. When a Strap Code is entered, the modem is automatically configured for the code’s corresponding data rate, overhead, code rate, framing, scrambler type and modulation. An example of how to set a strap code follows: Example: At the Front Panel Menu, depress ‘↓’, then move ‘→’ to the ‘Strap Code’ Submenu and enter #16. The DMD15/DMD15L will be automatically configured to the parameters shown below in the highlighted row ‘Strap Code 16’. 4-26 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Use the following Strap Code Guide for available strap codes. Table 4-4. DMD15/DMD15L Strap Codes Strap Code (DEC) Data Code Rate Overhead Rate Framing (Kbps) Scrambler Drop and Insert ReedSolomo n Modulation 1 64 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 2 128 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 3 256 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 5 384 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 6 512 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 9 768 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 4 1536 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 10 1920 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 8 2048 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 12 2048 1* 1/2 IBS IBS DISABLE DISABLE QPSK 16 1544 96K 3/4 IDR V.35 (IESS) DISABLE DISABLE QPSK 32 2048 96K 3/4 IDR V.35 (IESS) DISABLE DISABLE QPSK 64 6312 96K 3/4 IDR V.35 (IESS) DISABLE DISABLE QPSK 128 8448 96K 3/4 IDR V.35 (IESS) DISABLE DISABLE QPSK 24 56 1 1/2 CNT V.35 (IESS) DISABLE DISABLE QPSK 33 56 1 3/4 CNT V.35 (IESS) DISABLE DISABLE QPSK 34 64 1 1/2 CNT V.35 (IESS) DISABLE DISABLE QPSK 36 64 1 3/4 CNT V.35 (IESS) DISABLE DISABLE QPSK 40 128 1 1/2 CNT V.35 (IESS) DISABLE DISABLE QPSK 48 128 1 3/4 CNT V.35 (IESS) DISABLE DISABLE QPSK 65 256 1 1/2 CNT V.35 (IESS) DISABLE DISABLE QPSK 66 256 1 3/4 CNT V.35 (IESS) DISABLE DISABLE QPSK 68 320 1 1/2 CNT V.35 (IESS) DISABLE DISABLE QPSK 72 320 1 3/4 CNT V.35 (IESS) DISABLE DISABLE QPSK 80 384 1 1/2 CNT V.35 (IESS) DISABLE DISABLE QPSK 96 384 1 3/4 CNT V.35 (IESS) DISABLE DISABLE QPSK 129 512 1 1/2 CNT V.35 (IESS) DISABLE DISABLE QPSK 130 512 1 3/4 CNT V.35 (IESS) DISABLE DISABLE QPSK 132 768 1 1/2 CNT V.35 (IESS) DISABLE DISABLE QPSK 136 768 1 3/4 CNT V.35 (IESS) DISABLE DISABLE QPSK 144 896 1 1/2 CNT V.35 (IESS) DISABLE DISABLE QPSK TM051 - Rev. 5.8 4-27 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 44 896 1 3/4 CNT V.35 (IESS) DISABLE DISABLE QPSK 7 1344 1 1/2 CNT V.35 (IESS) DISABLE DISABLE QPSK 11 1344 1 3/4 CNT V.35 (IESS) DISABLE DISABLE QPSK 13 1536 1 1/2 CNT V.35 (IESS) DISABLE DISABLE QPSK 14 1536 1 3/4 CNT V.35 (IESS) DISABLE DISABLE QPSK 19 1544 1 1/2 CNT V.35 (IESS) DISABLE DISABLE QPSK 21 1544 1 3/4 CNT V.35 (IESS) DISABLE DISABLE QPSK 22 1920 1 1/2 CNT V.35 (IESS) DISABLE DISABLE QPSK 25 1920 1 3/4 CNT V.35 (IESS) DISABLE DISABLE QPSK 26 2048 1 1/2 CNT V.35 (IESS) DISABLE DISABLE QPSK 28 2048 1 3/4 CNT V.35 (IESS) DISABLE DISABLE QPSK 37 2368 1 1/2 CNT V.35 (IESS) DISABLE DISABLE QPSK 38 2368 1 3/4 CNT V.35 (IESS) DISABLE DISABLE QPSK 41 48 1 1/2 CNT V.35 (IESS) DISABLE DISABLE QPSK 160 1544 3072/ 2895 1/2 IBS IBS DISABLE DISABLE QPSK 52 1920 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 69 6312 1 3/4 CNT V.35 (IESS) DISABLE DISABLE QPSK 70 8448 1 3/4 CNT V.35 (IESS) DISABLE DISABLE QPSK 73 3152 1 1/2 CNT V.35 (IESS) DISABLE DISABLE QPSK 74 3152 1 3/4 CNT V.35 (IESS) DISABLE DISABLE QPSK 76 3264 1 1/2 CNT V.35 (IESS) DISABLE DISABLE QPSK 81 3264 1 3/4 CNT V.35 (IESS) DISABLE DISABLE QPSK 88 512 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 97 1024 1 1/2 CNT V.35 (IESS) DISABLE DISABLE QPSK 98 1024 1 3/4 CNT V.35 (IESS) DISABLE DISABLE QPSK 112 64 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 131 128 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 133 256 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 134 192 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 137 192 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 138 320 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 140 320 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 145 384 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 100 448 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 146 448 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 4-28 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces 104 576 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 148 576 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 152 640 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 161 640 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 162 704 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 164 704 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 168 768 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 193 832 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 194 832 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 196 896 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 208 896 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 224 960 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 15 960 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 23 1024 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 27 1024 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 29 1536 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 30 1088 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 39 1088 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 43 1152 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 46 1152 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 51 1216 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 53 1216 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 54 1280 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 57 1280 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 58 1344 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 67 1408 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 71 1408 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 75 1472 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 77 1472 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 78 1600 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 83 1600 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 85 1664 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 86 1664 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 89 1728 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 90 1728 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 92 1792 16/15 1/2 IBS IBS DISABLE DISABLE QPSK TM051 - Rev. 5.8 4-29 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 99 1792 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 101 2048 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 102 1856 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 105 1856 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 106 2048 1* 3/4 IBS IBS DISABLE DISABLE QPSK 120 1544 3072/2095 3/4 IBS IBS DISABLE DISABLE QPSK 135 1984 16/15 1/2 IBS IBS DISABLE DISABLE QPSK 139 1984 16/15 3/4 IBS IBS DISABLE DISABLE QPSK 45 3088 1 1/2 CNT V.35 (IESS) DISABLE DISABLE QPSK 141 3088 1 3/4 CNT V.35 (IESS) DISABLE DISABLE QPSK 176 4000 1 1/2 CNT V.35 (IESS) DISABLE DISABLE QPSK 116 4000 1 3/4 CNT V.35 (IESS) DISABLE DISABLE QPSK 60 1344 1/15 3/4 IBS IBS DISABLE DISABLE QPSK 200 128 NONE 1/2 CNT V.35(IESS) DISABLE DISABLE QPSK 4.5 Sample DMD15/DMD15L Applications The following section provides brief application notes for operating the DMD15/DMD15L and explains by example how to configure the DMD15/DMD15L for some of the most popular configurations. The following information illustrates the allowable combinations for Mode and Data Rate for the DMD15/DMD15L. Allowable Combinations: Mode/Rate/Framing. 4-30 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces IDR: 8.448 Mbps 6.312 Mbps 2.048 Mbps 1.544 Mbps or Below - 3/4, 7/8 Rate FEC - 1/2, 3/4, 7/8 Rate FEC - 1/2, 3/4, 7/8 Rate FEC - 1/2, 3/4, 7/8 Rate FEC 2.048 Mbps or below - 1/2, 3/4, 7/8 Rate IBS: Closed Network: 8.448 -96 Kb Framing or No Framing, 3/4, 7/8 Rate FEC 6.312 -96 Kb Framing or No Framing, 1/2, 3/4, 7/8 Rate FEC 2.048 -96 Kb Framing or 1/15 Framing or No Framing, 1/2, 3/4, 7/8 Rate FEC 1.544 -96 Kb Framing or 1/15 Framing or No Framing, 1/2, 3/4, 7/8 Rate FEC Any Rate 2.048 & lower - 1/15 Framing or No Framing, 1/2, 3/4, 7/8 Rate FEC 4.5.1 Operational Case Examples Note: For best results always begin setup by setting the data rate to 512 Kbps. This data rate is applicable for all modes and as such provides a convenient launch point for setting up the modem. Any mode of operation can be entered from this starting point. Case 1: IDR 8.448 Mbps, 3/4 Rate Viterbi Starting with the Data Rate = 512 Kbps Modulator: Method 1 Set mode to IDR Under Mod Data menu: Set code rate to 3/4 VIT Set data rate for 8448000 Under Interface Menu: Under Mod IF menu: Set Interface type Set Tx clock selection Set desired Tx frequency and power level Turn IF ON Method 2 Set Mod strap code to: 128 Under Interface Menu: Set Interface type Set Tx clock selection Under Mod IF menu: Set desired Tx frequency and power level Turn IF on TM051 - Rev. 5.8 4-31 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem Demodulator: Method 1 Set mode to IDR Under Demod IF menu: Set desired Rx frequency Under Demod data menu: Set code rate to 3/4 VIT Set data rate for 8448000 Under Interface menu: Set Interface type Set Buff clock selection Set Buffer Size Method 2 Set Demod strap code to 128 Under Demod IF menu, set desired Rx frequency Under Interface Menu: Set Interface type Set Buff clock selection Set Buffer Size Case 2: IBS 1.544 Mbps, 3/4 Rate Viterbi Starting with the Data Rate – 512 Kbps Modulator: Method 1 - Set Framing to 1/15 Set mode to IBS Under Mod Data menu: Set code rate to 3/4 VIT Set data rate for 1544000 Under Interface Menu: Set Interface type Set Tx clock selection Under Mod IF menu: Set desired Tx frequency and power level Turn IF ON Method 2 Set Mod strap code to: 120 Under Interface Menu: Set Interface type Set Tx clock selection Under Mod IF menu: Set desired Tx frequency and power level Turn IF on Demodulator: Method 1 - Set Framing to 1/15: Set mode to IBS: Under Demod IF menu: Set desired Rx frequency Under Demod data menu: Set code rate to 3/4 VIT Set data rate for 1544000 Under Interface menu: Set Interface type Set Buff clock selection Set Buffer Size Method 2 - 4-32 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Set Demod strap code to: 120 Under Demod IF menu: Set desired Rx frequency Under Interface Menu: Set Interface type Set Buff clock selection Set Buffer Size Case 3: Closed Network, 3/4 Rate Viterbi, IBS Overhead Starting with the Data Rate = 512 Kbps Modulator: Method 1 Set mode to IDR: Under Mod Data menu: Set code rate to 3/4 VIT Set Framing for 1/15 Under Interface Menu: Under Mod IF menu: Set Interface type Set Tx clock selection Set desired Tx frequency and power level Turn IF ON Method 2 Set Mod strap code to: 101 Under Interface Menu: Set Interface type Set Tx clock selection Under Mod IF menu: Set desired Tx frequency and power level Turn IF on Demodulator: Method 1 Set mode to: Closed Net Under Demod IF menu: Set desired Rx frequency Under Demod data menu: Set code rate to 3/4 VIT Set Framing for 1/15 Under Interface menu: Set Interface type Set Buff clock selection Set Buffer Size Method 2 Set Demod strap code to: 101 Under Demod IF menu: Set desired Rx frequency Under Interface Menu: Set Interface type Set Buff clock selection Set Buffer Size Case 4: Loop Timing Example Method 1 Set mode to IBS TM051 - Rev. 5.8 4-33 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem Under Interface menu: Under Tx Setup menu: Set INTF to RS-422 Set SCT Source to SCR Set Tx Clock to SCTE Method 2 Set mode to Closed Net Under Interface menu: Under Tx Setup menu: Set INTF to RS-422 Set SCT Source to SCR Set Tx Clock to SCTE 4.6 Configuring the DMD15/DMD15L for Drop and Insert Several dependencies exist when configuring the modem for Drop and Insert (D&I). The following paragraphs explain these dependencies and provide the user with the information required to ensure smooth transition into D&I and to minimize the potential impact of these dependencies. 4.6.1 Data Rate Data Rate affects the Drop and Insert function in the following ways: It determines the number of Satellite Channels that will be displayed in the Edit Maps. It contributes to the Operational Mode selection process. Trying to change the Operational Mode to D&I when a data rate is not set to a valid D&I rate will result in the error message ‘INVALID DATA RATE,’ and the mode change will not be allowed. It contributes to the Terrestrial Framing Mode selection process. Trying to select a T1type Drop Mode such as T1-ESF with the mod data rate set to 1920000 bps (a valid E1 D&I rate but not a valid T1 rate) will result in the error message ‘INVALID DROP MODE’ and the selection will not be allowed. Trying to select a T1 type Insert Mode such as T1D4 with the demod data rate set to 1920000 bps will result in the error message INVALID INSERT MODE and the selection will not be allowed. Once D&I Mode has been selected, trying to change the data rate to something other than another valid D&I data rate will result in the error message ‘RATE OUT OF BOUNDS’ and the change will not be allowed. Once D&I Mode has been selected with a T1 Terrestrial Framing Mode, attempting to change the data rate to 1920000 will result in the error message ‘RATE OUT OF BOUNDS’ and the change will not be allowed. Therefore, the data rate should be entered as the first step in configuring the modem for D&I. The Mod Data Rate should be set according to the number of timeslots to be dropped and the Demod Data Rate should be set according to the number of timeslots to be inserted. The following table gives the allowable D&I data rates based on the number of slots (n) to be dropped or inserted. n = 1, data rate = 64000 n = 2, data rate = 128000 n = 3, data rate = 192000 n = 4, data rate = 256000 n = 5, data rate = 320000 n = 6, data rate = 384000 n = 8, data rate = 512000 n = 10, data rate = 640000 n = 12, data rate = 768000 4-34 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces n = 15, data rate = 960000 n = 16, data rate = 1024000 n = 20, data rate = 1280000 n = 24, data rate = 1536000 n = 30, data rate = 1920000 (valid with E1 Interface only) 4.6.2 Operational Mode The Operational Mode of the Modem often determines which additional menus and displays are available for use by the operator. The D&I Mode-specific menus will not be displayed unless the Operational Mode of the modem is set to D&I. Therefore, the second step in configuring the modem should be to set the Operational Mode to D&I. At this point, the D&I specific menus in the Interface section will become available and will remain available until the Operational Mode of the modem is changed to something other than D&I. When the Operational Mode is changed to something other than D&I, the D&I specific menus will automatically disappear. 4.6.3 Terrestrial Framing - Drop Mode/Insert Mode The Drop Mode Selection and the Insert Mode Selection identify the Terrestrial Data-Framing Format. As previously mentioned, their selection is influenced by the Modulator and Demodulator Data Rates, and trying to select a T1 Type Framing Format with a data rate of 1920000 bps will result in an error message. In turn, the selection of the terrestrial framing formats influences the satellite channel to terrestrial timeslot mappings in the following manner: The selection of T1-D4, T1-ESF, or SLC-96 type terrestrial framing format limits the terrestrial timeslots to values from 1-24. The selection of PCM-30 or PCM-30C type terrestrial framing limits the terrestrial timeslots to values from 1-15, 17-31. In these modes, terrestrial timeslot 16 is reserved for ABCD signaling and may not be dropped or inserted. The selection of PCM-31 or PCM-31C type terrestrial framing limits the terrestrial timeslots to values from 1-31. Therefore, the terrestrial framing format should be identified via the Drop Mode and Insert Mode entries prior to editing the Drop or Insert satellite channel to terrestrial timeslot maps. 4.6.3.1 Insert Terrestrial Frame Source The Insert Terrestrial Frame Source selection tells the Modem from where the Insert Terrestrial Frame is coming. External: Indicates that the terrestrial frame is to be input via the Insert Data In Port. Internal: Indicates that the modem needs to generate the terrestrial frame and that all noninserted timeslots need to be filled with the appropriate idle code based upon the terrestrial framing (T1 or E1). The selection of the Insert Terrestrial Frame Source also influences the Buffer Clock selection in the following manner: When the Insert Terrestrial Frame Source selection is set to External, the received satellite data will be clocked out of the Doppler Buffer based upon the clock recovered from the insert data input. Therefore, the Buffer Clock selection will automatically be set to External and cannot be TM051 - Rev. 5.8 4-35 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem modified. Attempts to select a different buffer clock will result in the error message INVALID BUFFER CLOCK and the selection will not be allowed. When the Insert Terrestrial Frame Source selection is set to Internal, the operator needs to specify how data should be clocked out of the Doppler Buffer. In this case, the operator will be able to select SCTE, SCT, RX SAT, or EXT EXC as the source for the Buffer Clock. Therefore, the Insert Terrestrial Frame Source selection should be made prior to attempting to change the Buffer Clock. In most instances, the Insert Terrestrial Frame Source selection will be set to External and the Buffer Clock will automatically be set to External. 4.6.4 D&I Sample Configurations and D&I Clock Setup Options The following are several examples of how to configure the modem for D&I. Also, refer to Figures 3-14 through 3-17 for the D&I Clocking Setup Options Available. Example 1: Drop 512 Kbps from a T1 trunk, 3/4 rate Viterbi Insert 512 Kbps into a T1 trunk, 3/4 rate Viterbi Drop 512 Kbps from a T1 trunk, 3/4 rate Viterbi Under Modulator: Under Mod Data: Set Data Rate = 512000 Set Conv Enc = VIT 3/4 Under Modulator: Set Mode = Drop & Insert 4-36 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Under Interface: Under TX Setup: Set Tx Type according to your hardware configuration (example: G703BT1B8ZS) Set Tx Clock = SCTE Under Tx D&I: Set Drop Mode = T1-D4 Use SATCh TS edit capability to define desired mapping of Satellite Channels to drop Terrestrial Slots Use Map Copy to copy Tx Edit to Tx Active Under Modulator: Under Mod IF: Set Frequency to desired value Turn IF Output Power On Under Demodulator: Under Demod Data: Set Data Rate = 512000 Set Conv Enc = VIT 3/4 Under Demodulator: Set Mode = Drop & Insert Under Interface: Under RX Setup: Set Rx Type according to your hardware configuration Set Buff Size to desired depth Under Rx D&I: Set Insert Mode = T1-D4 Set T1 E1 Frm Src = External Use SATCh TS edit capability to define proper mapping of Satellite Channels to insert Terrestrial Slots Use Map Copy to copy Rx Edit to Rx Active Under Demodulator: Under Demod IF: Set Frequency to desired value Example 2: Multidestinational Remote Site Programming Drop 512 Kbps from a T1 trunk, 3/4 rate Viterbi. Extract 512 Kbps from a 1536 Kbps carrier and insert into a T1 trunk, 3/4 rate Viterbi. Drop 512 Kbps from a T1 trunk, 3/4 Rate Viterbi Configuration setup is exactly as previously shown in Example 1. Extract 512 Kbps from a 1536 Kbps carrier and insert into a T1 trunk, 3/4 Rate Viterbi TM051 - Rev. 5.8 4-37 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem Under Demodulator: Under Demod Data: Set Data Rate = 1536000 Set Conv Enc = VIT 3/4 Under Demodulator: Set Mode = Drop & Insert Under Interface: Under RX Setup: Set Rx Type according to your hardware configuration Set Buff Size to desired depth Under Rx D&I: Set Insert Mode = T1-D4 Set T1 E1 Frm Src = External Use SATCh TS edit capability to define proper mapping of Satellite Channels to insert Terrestrial Slots For Satellite Channels that are not to be inserted, enter “NI” (No Insert) for the Terrestrial Slot Use Map Copy to copy Rx Edit to Rx Active Under Demodulator: Under Demod IF: Set Frequency to desired value. Figures 4-3 through 4-6 illustrate D&I Clock Setup Options Figure 4-3. Transmit Trunk and Receive Trunk 4-38 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Figure 4-4. Single Trunk Figure 4-5. Rx Only With Trunk Figure 4-6. Rx Only No Trunk TM051 - Rev. 5.8 4-39 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4.7 D&I Maps and Map Editing The Drop and Insert multiplexer is programmed by loading it with a transmit and receive map. Maps always contain 30 entries, although, only the first “n” entries are relevant (see Table 4-5). The DMD15/DMD15L includes provisions to copy, change, and store the D&I transmit and receive maps directly from the Front Panel or via the remote M&C link. These maps are tables that are used to define and configure the D&I functions. Each map contains up to 30 entries, which are enough to define the channel assignments for a T1 (24 channel) or E1 (30 channel) frame structure. Maps that are created are stored in non-volatile battery backed-up memory within the modem and remain unchanged after a power-down. Table 4-5. D&I Multiplexer Map Locations Used Data Rate (Kbps) Map Locations Used (n = 1,2,4,8,16,24,30) 64 1 128 1-2 256 1-4 384 1-6 512 1-8 768 1-12 1024 1-16 1536 1-24 1920 1-30 It is important to understand that each map contains up to 30 usable entries. In many cases a smaller number of entries will be relevant, except when the data rate is 1920 Kbps, in which case 30 entries will used by the multiplexer. To determine the number of relevant entries, divide the data rate by 64 Kbps. For example: At 384 Kbps, 384/64 = 6 entries. So in this case only the first six entries of the map would be relevant. The Modem is equipped with eight permanently stored default maps, which are designated ROM 1 through ROM 8. The user may also define, modify, and save an additional eight maps which are designated USER 1 through USER 8. Note that the ROM maps are read-only and may not be modified (refer to Table 4-6). 4-40 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces ROM Map Table 4-6. D&I ROM Maps T1/E1 Time Slot # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 3 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 4 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 5 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 6 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 8 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Since the D&I Functions are separate and distinct, two separate maps must be configured at the start of the D&I Multiplexer Operation. These are the Tx (transmit) Active Map for Drop Mapping and the Rx (receive) Active Map for Insert Mapping. The number of entries in each map is determined by the data rates selected. Each map entry consists of an IBS Time Slot assignment and the Terrestrial (T1 or E1) Channel Number it is assigned to. Drop Mapping and Insert Mapping are completely separate and independent. The map that is actually used for the Drop Function is the Tx Active Map; the map that is actually used for the Insert function is the Rx Active Map. Two additional maps exist: the Tx Edit Map and the Rx Edit Map. The Edit Maps are the buffer areas that are used when creating or modifying a map through the modem’s LCD; when editing is complete, the appropriate map should be copied to the Active Map. Any map may be copied to any other map with the exception of the ROM maps. These maps may only be the source of the data used to create a User, Edit, or Active Map. Maps can be created in the map editor and stored as “User Maps”. New “Active Maps” can be downloaded during Modem Operation but this will result in a temporary disruption of service on the terrestrial line or the Satellite transmission. The following paragraphs give examples of typical configurations that could use the ROM Maps as templates. The ROM Map used would have to be first copied to the appropriate Active Transmit (Drop) and/or Active Receive (Insert) Map(s) before it could be used. To use a modification of a ROM Map, the ROM Map must first be copied to the appropriate Edit Map, then modified, and then copied to the appropriate Active Map. Note: The mapping of channels to time slots is arbitrary; it is not necessary to map CH1 to TS1, CH2 to TS2, etc. The channel to the time slot mapping may be in any order within the constraints of the number of available channels. For example, ROM Map 1 could be used as the template for as Active Transmit (Drop) Map for a modulator configured for 64 Kbps operation. Only the first time slot of the T1 or E1 frame would be dropped into the modulator transmit path. The Drop Multiplexer would know to look only at the TM051 - Rev. 5.8 4-41 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem first entry in the Active Transmit table and would ignore the other 29 entries. If the map contained an “8” in its first entry, the eighth channel of the T1/E1 frame would be sent to the modulator. ROM Map 2 could be used as the template for an Active Receive (Insert) Map for a demodulator configured for 128 Kbps operation. The demodulated data in the receive path would be inserted into the first two time slots of the T1 or E1 frame. The Insert Multiplexer would know to look only at the first two entries in the Active Receive table and would ignore the other 28 entries. If the first th th two entries were modified to contain a 27 and 28, the data would be inserted into the 27 and 28 time slots of the E1 frame. ROM Map 3 could be used as the template for an Active Transmit (Drop) Map with a modulator and/or demodulator configured for 256 Kbps operation. The T1 or E1 Data in the transmit path or the demodulated data in the receive path would be dropped from and/or inserted into the first four time slots of the T1 or E1 frame. The Multiplexer would know to look only at the first four entries in the Active map(s) and would ignore the other 26 entries. ROM Map 4 could be used as the template for an Active Transmit (Drop) or Active Receive (Insert) Map with a modulator and/or demodulator configured for 384 Kbps operation. The T1 or E1 Data in the transmit path or the demodulated data in the receive path would be dropped from and/or inserted into the first six time slots of the T1 or E1 frame. The Insert Multiplexer would know to look only at the first six entries in the Active map(s) and would ignore the other 24 entries. To Drop the last six channels of a T1 frame into a modulator transmit path, the first six entries of the Active Transmit map should contain 19, 20, 21, 22, 23, and 24. ROM Map 5 could be used as the template for an Active Transmit (Drop) and/or Active Receive (Insert) Map with a modulator and/or demodulator configured for 512 Kbps operation. The T1 or E1 Data in the transmit path or the demodulated data in the receive path would be dropped from and or inserted into the first eight time slots of the T1 or E1 frame. The Multiplexer would know to look only at the first eight entries in the Active map(s) and would ignore the other 22 entries. To insert data received from a demodulator into channels 17 through 24 of an E1 frame, the first eight entries of the Active Receive map should contain 17, 18, 19, 20, 21, 22, 23, and 24. ROM Map 6 could be used as the template for an Active Transmit (Drop) and/or Active Receive (Insert) Map with a modulator and/or demodulator configured for 768 Kbps operation. The T1 or E1 Data in the transmit path or the demodulated data in the receive path would be dropped from and or inserted into the first 12 time slots of the T1 or E1 frame. The Multiplexer would know to look only at the first 12 entries in the Active map(s) and would ignore the other 18 entries. To insert data received from a demodulator into channels 3 through 14 of an E1 frame, the first 12 entries of the Active Receive map should contain 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, and 14. ROM Map 7 could be used as the template for an Active Transmit (Drop) and/or Active Receive (Insert) Map with a modulator and/or demodulator configured for 1920 Kbps operation. This would be used with E1 frames where time slot 16 is not used for the multiframe alignment signal and therefore channels 1 through 30 are mapped directly with time slots 1 through 30. ROM Map 7 could also be used as the template for an Active Transmit (Drop) and/or Active Receive (Insert) Map with a modulator and/or demodulator configured for 1024 Kbps operation. This would be used with T1 or E1 frames where channels 1 through 16 are mapped into time slots 1 through 16 (in any order). Map slots 17 through 30 would be ignored. ROM Map 7 could also be used as the template for an Active Transmit (Drop) and/or Active Receive (Insert) Map with a modulator and/or demodulator configured for 1536 Kbps operation. This would be used with T1 frames where channels 1 through 24 are mapped into time slots 1 through 24 (in any order). Map slots 25 through 30 would be ignored. ROM Map 8 could also be used as the template for an Active Transmit (Drop) and/or Active Receive (Insert) Map with a modulator and/or demodulator configured for 1920 Kbps operation. However, this mapping would be relevant with E1 frames where time slot 16 is used for the 4-42 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces multiframe alignment signal and therefore channels 1 through 30 are mapped to time slots 1 through 16 and 17 through 31. 4.8 Terminal Mode Control The DMD15/DMD15L Terminal Mode Control allows the use of an external terminal or computer to monitor and control the modem from a full screen interactive presentation operated by the modem itself. No external software is required other than VT100 Terminal Emulation Software (e.g. “Procomm” for a computer when used as a terminal. The Control Port is normally used as an RS–232 Connection to the terminal device. The RS-232 operating parameters can be set using the modem Front Panel and stored in EEPROM for future use. 4.8.1 Modem Terminal Mode Control The modem can be interactively monitored and controlled in the Terminal Mode, with a full screen presentation of current settings and status. Programming is accomplished by selecting the item to be modified and pressing the terminal key of the option number. For example, to change the transmit data rate, enter ‘33’ at the terminal. The modem will respond by presenting the options available and requesting input. Two types of input may be requested. If the input is multiple choice, the desired choice is selected by pressing the ‘Space’ key. When the desired option is displayed, press the ‘Enter’ key to select that option. The other possible input type requires a numerical input (such as entering a frequency or data rate. This type of input is followed by pressing the ‘Enter’ or carriage return key. An input can be aborted at any time by pressing the ‘ESC’ key. Invalid input keys cause an error message to be displayed on the terminal. The Terminal Control Mode supports serial baud rates of 150, 300, 1200, 2400, 4800, 9600, 19200, and 38400. The connection must be set for 8 data bits, 1 stop bit and no parity (8,N,1). Three terminal emulations are supported: VT100, WYSE 50, and ADDS-VP. “$” is used for setting the screen when the terminal is used is used for the first time or the nonvolatile memory gets reset. 4.8.2 Modem Setup for Terminal Mode Terminal Mode Communications and Protocol is set from the Front Panel Control by setting the “Control Mode” Parameter to “Terminal”, and then setting the “Modem Port”, “Term Baud” and “Emulation” Parameters as desired. Then a terminal is connected to Connector J5 on the Back Panel. All operating software for the Terminal Mode is contained within the DMD15/DMD15L Modem Internal Control Software. A “break” signal on the communications line, pressing “ESC” on the terminal or Power On of the modem will initiate full screen terminal mode printing and redraw the full screen. The Terminal Mode displays the present status of all user parameters controlled and read by the processor, and offers a menu allowing change to any controlled parameter. The Terminal Mode uses eight “Screens,” each of which have the basic contents of the three modem monitor and control areas as set in the Front Panel matrix columns. This screen is used for setting the parameters of the Modulator, Demodulator, Event, Alarm, Latched Alarm, Drop Controls, Insert Controls, and Interface Areas. TM051 - Rev. 5.8 4-43 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4.9 Modem Remote Communications 4.9.1 Host Computer Remote Communications NOTE: This specification is applicable to the DMD15, DMD10 and DMD10L Modems. Any reference to the DMD15 in this document can be applicable to any one of these three modems. Control and status messages are conveyed between the DMD15 and the subsidiary modems and the host computer using packetized message blocks in accordance with a proprietary communications specification. This communication is handled by the Radyne Link Level Protocol (RLLP), which serves as a protocol ‘wrapper’ for the RM&C data. Complete information on monitor and control software is contained in the following sections. 4.9.1.1 Protocol Structure The Communications Specification (COMMSPEC) defines the interaction of computer resident Monitor and Control Software used in satellite earth station equipment such as modems, redundancy switches, multiplexers, and other ancillary support gear. Communication is bidirectional, and is normally established on one or more full-duplex 9600-baud multi-drop control buses that conform to EIA Standard RS-485. Each piece of earth station equipment on a control bus has a unique physical address, which is assigned during station setup/configuration or prior to shipment. Valid decimal addresses on one control bus range from 032 through 255 for a total of up to 224 devices per bus. Address 255 of each control bus is usually reserved for the M&C computer. 4.9.1.2 Protocol Wrapper The Radyne COMMSPEC is byte-oriented, with the Least Significant Bit (LSB) issued first. Each data byte is conveyed as mark/space information with two marks comprising the stop data. When the last byte of data is transmitted, a hold comprises one steady mark (the last stop bit). To begin or resume data transfer, a space (00h) substitutes this mark. This handling scheme is controlled by the hardware and is transparent to the user. A pictorial representation of the data and its surrounding overhead may be shown as follows: S1 S2 B0 B1 B2 B3 B4 B5 B6 B7 S1 S2, etc. The Stop Bits, S1 and S2, are each a mark. Data flow remains in a hold mode until S2 is replaced by a space. If S2 is followed by a space, it is considered a start bit for the data byte and not part of the actual data (B0 - B 7). The COMMSPEC developed for use with the Radyne Link Level Protocol (RLLP) organizes the actual monitor and control data within a shell, or ‘protocol wrapper’, that surrounds the data. The format and structure of the COMMSPEC message exchanges are described herein. Decimal numbers have no suffix; hexadecimal numbers end with a lower case ‘h’ suffix and binary values have a lower case ‘b’ suffix. Thus, 22 = 16h = 000010110b. The principal elements of a data frame, in order of occurrence, are summarized as follows: : The message format header character, or ASCII sync character, that defines the beginning of a message. The character value is always 16h. : The Byte Count is the number of bytes in the field, ranging from 0 through 255 for the DMD5000 protocol (1 Byte), or ranging from 0 through 509 for the DMD15 protocol (2 Bytes). 4-44 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem : User Interfaces The Source Identifier defines the multi-drop address origin. Note: All nodes on a given control bus have a unique address that must be defined. : The Destination Identifier serves as a pointer to the multi-drop destination device that indicates where the message is to be sent. : The Frame Sequence Number (FSN) is a tag with a value from O through 255 that is sent with each message. It assures sequential information framing and correct equipment acknowledgment and data transfers. : The Operation Code field contains a number that identifies the message type associated with the data that follows it. Equipment under MCS control recognizes this byte via firmware identification and subsequently steers the DATA accordingly to perform a specific function or series of functions. Acknowledgment and error codes are returned in this field. 1 Byte for the DMD5000 protocol, and 2 Bytes for the DMD15 protocol. : The Data field contains the binary, bi-directional data bytes associated with the . The number of data bytes in this field is indicated by the value. : The checksum is the modulo 256 sum of all preceding message bytes, excluding the character. The checksum determines the presence or absence of errors within the message. In a message block with the following parameters, the checksum is computed as shown in Table 4-7. Table 4-7. Checksum Calculation Example BYTE FIELD DATA CONTENT RUNNING CHECKSUM (Byte 1) 00h = 00000000b 00000000b (Byte 2) 02h = 00000010b 00000010b F0h = 11110000b 11110010b 2Ah = 00101010b 00011100b 09h = 00001001b 00100101b (Byte 1) 00h = 00000000b 00100101b (Byte 2) 03h = 00000011b 00101000b (Byte 1) DFh = 11011111b 00000111b (Byte 2) FEh = 11111110b 00000101b TM051 - Rev. 5.8 4-45 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem Thus, the checksum is 00000101b; which is 05h or 5 decimal. Alternative methods of calculating the checksum for the same message frame are: 00h + 02h + F0h + 2Ah + 09h + 00h + 03h + DFh + FEh = 305h. Since the only concern is the modulo 256 (modulo 1 00h) equivalent (values that can be represented by a single 8-bit byte), the checksum is 05h. For a decimal checksum calculation, the equivalent values for each information field are: 0 + 2 + 240 + 42 + 9 + 0 + 3 + 223 + 254 = 773; 773/256 = 3 with a remainder of 5. This remainder is the checksum for the frame. 5 (decimal) = 05h = 0101b = 4.9.1.3 Frame Description and Bus Handshaking In a Monitor and Control environment, every message frame on a control bus port executes as a packet in a loop beginning with a wait-for-SYNC-character mode. The remaining message format header information is then loaded, either by the M&C computer or by a subordinate piece of equipment (such as the DMD15) requesting access to the bus. Data is processed in accordance with the OPCODE, and the checksum for the frame is calculated. If the anticipated checksum does not match, then a checksum error response is returned to the message frame originator. The entire message frame is discarded and the wait-for-SYNC mode goes back into effect. If the OPCODE resides within a command message, it defines the class of action that denotes an instruction that is specific to the device type, and is a prefix to the DATA field if data is required. If the OPCODE resides within a query message packet, then it defines the query code, and can serve as a prefix to query code DATA. The Frame Sequence Number (FSN) is included in every message packet, and increments sequentially. When the M & C computer or bus-linked equipment initiates a message, it assigns the FSN as a tag for error control and handshaking. A different FSN is produced for each new message from the FSN originator to a specific device on the control bus. If a command packet is sent and not received at its intended destination, then an appropriate response message is not received by the packet originator. The original command packet is then re-transmitted with the same FSN. If the repeated message is received correctly at this point, it is considered a new message and is executed and acknowledged as such. If the command packet is received at its intended destination but the response message (acknowledgment) is lost, then the message originator (usually the M&C computer) re-transmits the original command packet with the same FSN. The destination device detects the same FSN and recognizes that the message is a duplicate, so the associated commands within the packet are not executed a second time. However, the response packet is again sent back to the source as an acknowledgment in order to preclude undesired multiple executions of the same command. To reiterate, valid equipment responses to a message require the FSN tag in the command packet. This serves as part of the handshake/acknowledge routine. If a valid response message is absent, then the command is re-transmitted with the same FSN. For a repeat of the same command involving iterative processes (such as increasing or decreasing the transmit power level of a DMD15 modulator), the FSN is incremented after each message packet. When the FSN value reaches 255, it overflows and begins again at zero. The FSN tag is a powerful tool that assures sequential information framing, and is especially useful where commands require more than one message packet. 4-46 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces The full handshake/acknowledgment involves a reversal of source and destination ID codes in the next message frame, followed by a response code in the field of the message packet from the equipment under control. If a command packet is sent and not received at its intended destination, a timeout condition can occur because a response message is not received by the packet originator. On receiving devices slaved to an M & C computer, the timeout delay parameters may be programmed into the equipment in accordance with site requirements by Radyne Corp. prior to shipment, or altered by qualified personnel. The FSN handshake routines must account for timeout delays and be able to introduce them as well. 4.9.1.4 Global Response Operational Codes In acknowledgment (response) packets, the operational code field of the message packet is set to 0 by the receiving devices when the message intended for the device is evaluated as valid. The device that receives the valid message then exchanges the with the , sets the to zero in order to indicate that a good message was received, and returns the packet to the originator. This "GOOD MESSAGE" Opcode is one of nine global responses. Global response opcodes are common responses, issued to the M&C computer or to another device, that can originate from and are interpreted by all Radyne equipment in the same manner. These are summarized as follows (all opcode values are expressed in decimal form): Table 4-8. Response OPCODES Response OPCODE Description OPCODE Good Message 000d = 0000h Bad Parameter 255d = 00FFh Bad Opcode 254d = 00FEh Bad Checksum 253d = 00FDh Command Not Allowed in LOCAL Mode 252d = 00FCh Command Not Allowed in AUTO Mode 251d = 00FBh Bad Destination 250d = 00FAh Unable to Process Command 249d = 00F9h Packet Too Long 248d = 00F8h The following response error codes are specific to the DMD15: TM051 - Rev. 5.8 DMD15 Response Error Code Descriptions OPCODE MPARM_MODEMNUMBER_ERROR 0x0400 MPARM_FREQUENCY_ERROR 0x0401 MPARM_STRAP_ERROR 0x0402 MPARM_FILTERMASK_ERROR 0x0403 MPARM_DATARATE_ERROR 0x0404 MPARM_EXTEXCCLOCK_ERROR 0x0405 MPARM_EXTREFERENCE_ERROR 0x0406 4-47 User Interfaces 4-48 DMD15/DMD15L IBS/IDR Satellite Modem MPARM_EXTREFSOURCE_ERROR 0x0407 MPARM_MODULATIONTYPE_ERROR 0x0408 MPARM_CONVENCODER_ERROR 0x0409 MPARM_REEDSOLOMON_ERROR 0x040A MPARM_SCRAMBLERCONTROL_ERROR 0x040B MPARM_SCRAMBLERTYPE_ERROR 0x040C MPARM_IBSSCRAMBLER_ERROR 0x040D MPARM_V35SCRAMBLER_ERROR 0x040E MPARM_DIFFERENTIALENCODER_ERROR 0x040F MPARM_XMITPOWERLEVEL_ERROR 0x0410 MPARM_CARRIERCONTROL_ERROR 0x0411 MPARM_CARRIERSELECTION_ERROR 0x0412 MPARM_SPECTRUM_ERROR 0x0413 MPARM_OPERATINGMODE_ERROR 0x0414 MPARM_TERRLOOPBACK_ERROR 0x0415 MPARM_BASELOOPBACK_ERROR 0x0416 MPARM_CLOCKCONTROL_ERROR 0x0417 MPARM_CLOCKPOLARITY_ERROR 0x0418 MPARM_FRAMING_ERROR 0x0419 MPARM_DROPMODE_ERROR 0x041A MPARM_SCTSOURCE_ERROR 0x041B MPARM_DROPMAP_ERROR 0x041D MPARM_T1D4YELLOW_ERROR 0x041E MPARM_FORCEDALARMS_ERROR 0x041F MPARM_ALARMMASKENABLE_ERROR 0x0420 MPARM_ALARMMASK_ERROR 0x0421 MPARM_MODE_ERROR 0x0422 MPARM_CIRCUITID_ERROR 0x0423 MPARM_ESCCHANNEL1VOLUME_ERROR 0x0424 MPARM_ESCCHANNEL2VOLUME_ERROR 0x0425 MPARM_TERRESTRIAL_LOOPBACK_ERROR 0x0426 MPARM_INTERFACE_LOOPBACK_ERROR 0x0427 MPARM_IF_LOOPBACK_ERROR 0x0428 MPARM_INTERFACETYPE_ERROR 0x0429 MPARM_INTERFACENOTPRESENT_ERROR 0x042A MPARM_INTERFACECOMMUNICATION_ERROR 0x042B TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces MPARM_SYMBOLRATE_ERROR 0x042C MPARM_NOTIMPLEMENTED_ERROR 0x042D MPARM_TRANSFERTYPE_ERROR 0x042F MPARM_SUMMARYFAULT_ERROR 0x0430 MPARM_DATAINVERT_ERROR 0x0431 MPARM_ESCSOURCE_ERROR 0x0432 MPARM_FMORDERWIRE_ERROR 0x0433 MPARM_FMTESTTONE_ERROR 0x0434 MPARM_AUPCLOCALENABLE_ERROR 0x0435 MPARM_AUPCREMOTEENABLE_ERROR 0x0436 MPARM_AUPCLOCALCLACTION_ERROR 0x0437 MPARM_AUPCREMOTECLACTION_ERROR 0x0438 MPARM_AUPCTRACKINGRATE_ERROR 0x0439 MPARM_AUPCREMOTEBBLOOPBACK_ERROR 0x043A MPARM_AUPCREMOTE2047_ERROR 0x043B MPARM_AUPCEBNO_ERROR 0x043C MPARM_AUPCMINPOWER_ERROR 0x043D MPARM_AUPCMAXPOWER_ERROR 0x043E MPARM_AUPCNOMINALPOWER_ERROR 0x043F MPARM_CONFIGURATIONSOURCE_ERROR 0x0440 MPARM_CONFIGURATIONDESTINATION_ERROR 0x0441 MPARM_CONFIGURATION_ERROR 0x0442 MPARM_CARRIERDELAY_ERROR 0x0443 MPARM_TIME_MARK_ERROR 0x0444 DPARM_MODE_ERROR 0x0600 DPARM_FREQUENCY_ERROR 0x0601 DPARM_SWEEPDELAY_ERROR 0x0602 DPARM_DATARATE_ERROR 0x0603 DPARM_SWEEPBOUNDARY_ERROR 0x0604 DPARM_LEVELLIMIT_ERROR 0x0605 DPARM_STRAP_ERROR 0x0606 DPARM_FILTERMASK_ERROR 0x0607 DPARM_DEMODULATIONTYPE_ERROR 0x0608 DPARM_CONVDECODER_ERROR 0x0609 DPARM_REEDSOLOMON_ERROR 0x060A TM051 - Rev. 5.8 4-49 User Interfaces 4-50 DMD15/DMD15L IBS/IDR Satellite Modem DPARM_DIFFERENTIALDECODER_ERROR 0x060B DPARM_DESCRAMBLERCONTROL_ERROR 0x060C DPARM_DESCRAMBLERTYPE_ERROR 0x060D DPARM_SPECTRUM_ERROR 0x060E DPARM_BUFFERSIZE_ERROR 0x060F DPARM_BUFFERCLOCK_ERROR 0x0610 DPARM_BUFFERCLOCKPOL_ERROR 0x0611 DPARM_INSERTMODE_ERROR 0x0612 DPARM_T1SIGNALING_ERROR 0x0613 DPARM_T1E1FRAMESOURCE_ERROR 0x0614 DPARM_FRAMING_ERROR 0x0615 DPARM_OPERATINGMODE_ERROR 0x0616 DPARM_MAPSUMMARY_ERROR 0x0617 DPARM_AUTOALARM_ERROR 0x0618 DPARM_BEREXPONENT_ERROR 0x0619 DPARM_CIRCUITID_ERROR 0x061A DPARM_TERRLOOPBACK_ERROR 0x061B DPARM_BASELOOPBACK_ERROR 0x061C DPARM_IFLOOPBACK_ERROR 0x061D DPARM_INTERFACETYPE_ERROR 0x061E DPARM_INTERFACENOTPRESENT_ERROR 0x061F DPARM_INTERFACECOMMUNICATION_ERROR 0x0620 DPARM_SYMBOLRATE_ERROR 0x0621 DPARM_NOTIMPLEMENTED_ERROR 0x0622 DPARM_DATAINVERT_ERROR 0x0623 DPARM_SUMMARYFAULT_ERROR 0x0624 DPARM_EXTERNALEXCSOURCE_ERROR 0x0625 DPARM_CLEARLATCHEDALARM1_ERROR 0x0626 DPARM_CLEARLATCHEDALARM2_ERROR 0x0627 DPARM_CLEARLATCHEDALARM3_ERROR 0x0628 DPARM_ASYNCMODE_ERROR 0x062C DPARM_ASYNCBAUDRATE_ERROR 0x062D DPARM_ASYNCTYPE_ERROR 0x062E DPARM_ASYNCDATABITS_ERROR 0x062F DPARM_TIME_MARK_ERROR 0x0630 DPARM_REACQ_SWEEP_LIMIT_ERROR 0x0631 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces MDPARM_MAPNUMBER_ERROR 0x0A00 MDPARM_TIME_ERROR 0x0A01 MDPARM_DATE_ERROR 0x0A02 MDPARM_TERMINALEMULATION_ERROR 0x0A05 MDPARM_TERMINALBAUDRATE_ERROR 0x0A06 MDPARM_EBNO_THRESHOLD_ERROR 0x0A07 4.9.1.5 Collision Avoidance When properly implemented, the physical and logical devices and ID addressing scheme of the COMMSPEC normally precludes message packet contention on the control bus. The importance of designating unique IDs for each device during station configuration cannot be overemphasized. One pitfall, which is often overlooked, concerns multi-drop override IDs. All too often, multiple devices of the same type are assigned in a direct-linked ("single-thread") configuration accessible to the M&C computer directly. For example, if two DMD15 Modems with different addresses (DESTINATION IDs) are linked to the same control bus at the same hierarchical level, both will attempt to respond to the M&C computer when the computer generates a multi-drop override ID of 22. If their actual setup parameters, status, or internal timing differs, they will both attempt to respond to the override simultaneously with different information or asynchronously in their respective message packets and response packets, causing a collision on the serial control bus. To preclude control bus data contention, different IDs must always be assigned to the equipment. If two or more devices are configured for direct-linked operation, then the M&C computer and all other devices configured in the same manner must be programmed to inhibit broadcast of the corresponding multi-drop override ID. The multi-drop override ID is always accepted by devices of the same type on a common control bus, independent of the actual DESTINATION ID. These override IDs with the exception of “BROADCAST” are responded to by all directly-linked devices of the same type causing contention on the bus. The “BROADCAST” ID, on the other hand, is accepted by all equipment but none of then returns a response packet to the remote M&C. TM051 - Rev. 5.8 4-51 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem The following multi-drop override IDs are device-type specific, with the exception of "BROADCAST". These are summarized below with ID values expressed in decimal notation: Directly-Addressed Equipment Multi-Drop Override ID Broadcast (all directly-linked devices) 00 DMD-3000/4000, 4500 or 5000 Mod Section, DMD15 01 DMD-3000/4000, 4500 or 5000 Demod Section, DMD15 02 RCU-340 1:1 Switch 03 RCS-780 1:N Switch 04 RMUX-340 Cross-Connect Multiplexer 05 CDS-780 Clock Distribution System 06 SOM-340 Second Order Multiplexer 07 DMD-4500/5000 Modulator Section 08 DMD-4500/5000 Demodulator Section 09 RCU-5000 M:N Switch 10 DMD15 Modulator 20 DMD15 Demodulator 21 DMD15 Modem 22 DVB3000/3030 Video Modulator, DM240 23 RCS20 M:N Switch 24 RCS10 M:N Switch 25 RCS11 1:1 Switch 26 Reserved for future equipment types 27-31 Note that multi-drop override IDs 01 or 02 can be used interchangeably to broadcast a message to a DMD-3000/4000 modem, or to a DMD-4500/5000, or to a DMD15 modem. Radyne Corp. recommends that the multi-drop override IDs be issued only during system configuration as a bus test tool by experienced programmers, and that they not be included in run-time software. It is also advantageous to consider the use of multiple bus systems where warranted by a moderate to large equipment complement. Therefore, if a DMD15 Modulator is queried for its equipment type identifier, it will return a "20" and DMD15 Demodulator will return a "21". A DMD15 Modem will also return a "22". 4-52 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces 4.9.1.6 Software Compatibility The COMMSPEC, operating in conjunction within the RLLP shell, provides for full forward and backward software compatibility independent of the software version in use. New features are appended to the end of the DATA field without OPCODE changes. Older software simply discards the data as extraneous information without functional impairment for backward compatibility. If new device-resident or M&C software receives a message related to an old software version, new information and processes are not damaged or affected by the omission of data. The implementation of forward and backward software compatibility often, but not always, requires the addition of new Opcodes. Each new function requires a new Opcode assignment if forward and backward compatibility cannot be attained by other means. When Radyne , Inc. equipment is queried for bulk information (Query Mod, Query Demod, etc.) it responds by sending back two blocks of data; a Non-Volatile Section (parameters that can be modified by the user) and a Volatile Section (status information). It also returns a count value that indicates the size of the Non-Volatile Section. This count is used by M&C developers to index into the start of the Volatile Section. When new features are added to Radyne equipment, the control parameters are appended to the end of the Non-Volatile Section, and status of the features, if any, are added at the end of the Volatile Section. If a remote M&C queries two pieces of Radyne equipment with different revision software, they may respond with two different sized packets. The remote M&C MUST make use of the non-volatile count value to index to the start of the Volatile Section. If the remote M&C is not aware of the newly added features to the Radyne product, it should disregard the parameters at the end of the Non-Volatile Section and index to the start of the Volatile Section. If packets are handled in this fashion, there will also be backward-compatibility between Radyne , Inc. equipment and M&C systems. Remote M&C systems need not be modified every time a feature is added unless the user needs access to that feature. 4.9.1.7 Flow Control and Task Processing The original packet sender (the M&C Computer) relies on accurate timeout information with regard to each piece of equipment under its control. This provides for efficient bus communication without unnecessary handshake overhead timing. One critical value is designated the Inter-Frame Space (FS). The Inter-Frame Space provides a period of time in which the packet receiver and medium (control bus and M&C Computer interface) fully recover from the packet transmission/reception process and the receiver is ready to accept a new message. The programmed value of the Inter-Frame Space should be greater than the sum of the "turnaround time" and the round-trip (sender/receiver/bus) propagation time, including handshake overhead. The term "turnaround time" refers to the amount of time required for a receiver to be re-enabled and ready to receive a packet after having just received a packet. In flow control programming, the Inter-Frame Space may be determined empirically in accord with the system configuration, or calculated based on established maximum equipment task processing times. TM051 - Rev. 5.8 4-53 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem Each piece of supported equipment on the control bus executes a Radyne Link Level Task (RLLT) in accordance with its internal hardware and fixed program structure. In a flow control example, the RLLT issues an internal "message in" system call to invoke an I/0 wait condition that persists until the task receives a command from the M & C computer. The RLLT has the option of setting a timeout on the incoming message. Thus, if the equipment does not receive an information/command packet within a given time period, the associated RLLT exits the I/0 wait state and takes appropriate action. Radyne equipment is logically linked to the control bus via an Internal I/O Processing Task (IOPT) to handle frame sequencing, error checking, and handshaking. The IOPT is essentially a link between the equipment RLLT and the control bus. Each time the M&C computer sends a message packet, the IOPT receives the message and performs error checking. If errors are absent, the IOPT passes the message to the equipment's RLLT. If the IOPT detects errors, it appends error messages to the packet. Whenever an error occurs, the IOPT notes it and discards the message; but it keeps track of the incoming packet. Once the packet is complete, the IOPT conveys the appropriate message to the RLLT and invokes an I/0 wait state (wait for next character). If the RLLT receives the packetized message from the sender before it times out, it checks for any error messages appended by the IOPT. In the absence of errors, the RLLT processes the received command sent via the transmitted packet and issues a "message out" system call to ultimately acknowledge the received packet. This call generates the response packet conveyed to the sender. If the IOPT sensed errors in the received packet and an RLLT timeout has not occurred, the RLLT causes the equipment to issue the appropriate error message(s) in the pending equipment response frame. To maintain frame synchronization, the IOPT keeps track of error-laden packets and packets intended for other equipment for the duration of each received packet. Once the packet is complete, the IOPT invokes an I/0 wait state and searches for the next character. 4.9.1.8 RLLP Summary The RLLP is a simple send-and-wait protocol that automatically re-transmits a packet whenever an error is detected, or when an acknowledgment (response) packet is absent. During transmission, the protocol wrapper surrounds the actual data to form information packets. Each transmitted packet is subject to time out and frame sequence control parameters, after which the packet sender waits for the receiver to convey its response. Once a receiver verifies that a packet sent to it is in the correct sequence relative to the previously received packet, it computes a local checksum on all information within the packet excluding the character and the fields. If this checksum matches the packet , the receiver processes the packet and responds to the packet sender with a valid response (acknowledgment) packet. If the checksum values do not match, the receiver replies with a negative acknowledgment (NAK) in its response frame. The response packet is therefore either an acknowledgment that the message was received correctly, or some form of a packetized NAK frame. If the sender receives a valid acknowledgment (response) packet from the receiver, the increments and the next packet is transmitted as required by the sender. However, if a NAK response packet is returned the sender re-transmits the original information packet with the same embedded . If an acknowledgment (response) packet or a NAK packet is lost, corrupted, or not issued due to an error and is thereby not returned to the sender, the sender re-transmits the original information packet; but with the same . When the intended receiver detects a duplicate packet, the packet is acknowledged with a response packet and internally discarded to preclude undesired repetitive executions. If the M&C computer sends a command packet and the corresponding response packet is lost due to a system or internal error, the computer times out and re-transmits 4-54 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces the same command packet with the same to the same receiver and waits once again for an acknowledgment or a NAK packet. To reiterate, the format of the Link Level Protocol Message Block is shown below. SYNC COUNT SRC ADDR DEST ADDR FSN OPCODE DATA BYTES CHECKSUM 4.9.2 Remote Port Packet Structure: The Modem protocol is an enhancement on the DMD5000 protocol. It also uses a packet structure format. The structure is as follows: : Message format header character that defines the beginning of a message. The character value is always 0x16 (1 byte). : The number of bytes in the field (2 bytes). : Identifies the address of the equipment from where the message originated (1 byte). : Identifies the address of the equipment where the message is to be sent (1 byte). : Frame sequence number ensures correct packet acknowledgment and data transfers (1 byte). : This byte identifies the message type associated with the information data. The equipment processes the data according to the value in this field. Return error codes and acknowledgment are also included in this field (2 bytes). <...DATA...>: Information data. The number of data bytes in this field is indicated by the value. : The modulo 256 sum of all preceding message bytes excluding the character (1 byte). The Modem RLLP is not software-compatible with the following previous Radyne products: RCU5000 and DMD4500. These products may not occupy the same bus while using this protocol as equipment malfunction and loss of data may occur. NOTE: When transmitting a packet at 9600 baud, the Remote M&C should ensure that the timeout value between characters does not exceed the time it takes to transmit 200 characters(| 200 msec). If this timeout value is exceeded, the equipment will timeout. TM051 - Rev. 5.8 4-55 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4.9.3 DMD15/DMD15L Opcode Command Set The DMD15/DMD15L Opcode Command Set is listed below: 4.9.4 Modem Command Set 4-56 Command Opcode Query Modulator Configuration and Status 2400h Query Demodulator Configuration and Status 2401h Query Modem Drop & Insert Map 2402h Query Modems Identification 2403h Query Modem Control Mode 2404h Query Modulator Latched Alarms 2405h Query Demodulator Latched Alarms 2406h Query Modem Latched Alarms 2407h Query Modulator Current Alarms 2408h Query Demodulator Current Alarms 2409h Query Modem Current Alarms 240Ah Query Modulator Status 240Bh Query Demodulator Status 240Ch Query Modem Eb/No, BER and Level 240Dh Query Time 240Eh Query Date 240Fh Query Time and Date 2410h Query Modem Summary Faults 2411h TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem TM051 - Rev. 5.8 User Interfaces Command Opcode Command Modem Control Mode 2600h Command Modulator Configuration 2601h Command Modulator Frequency 2602h Command Modulator Strap Code 2603h Command Modulator Data Rate 2604h Command Modulator Filter Mask 2605h Command Modulator Modulation Type 2606h Command Modulator Convolutional Encoder 2607h Command Modulator Differential Encoder 2608h Command Modulator Carrier Control 2609h Command Modulator Carrier Selection 260Ah Command Modulator Clock Control 260Bh Command Modulator Clock Polarity 260Ch Command Modulator SCT Source 260Dh Command Modulator Drop Mode 260Eh Command Modulator Output Level 260Fh Command Modulator Reed Solomon 2610h Command Modulator Spectrum 2611h Command Modulator Operating Mode 2612h Command Modulator Scrambler Control 2613h Command Modulator Scrambler Type 2614h Command Modulator Framing 2615h Command Modulator External Reference Source 2616h Command Modulator Terrestrial Loopback 2617h Command Modulator Baseband Loopback 2618h Command Modulator Mode 2619h Command Modulator External EXC Clock 261Ah Command Modulator External Reference Frequency 261Bh Command Modulator T1 D4 Yellow Alarm Selection 261Dh Command Modulator Interface Type 261Eh Command Modulator Circuit ID 261Fh Command Force Modulator Summary Alarms 2622h Command Data Invert 2623h 4-57 User Interfaces 4-58 DMD15/DMD15L IBS/IDR Satellite Modem Clear Latched Alarm 1 2625h Command AUPC Local Enable 2629h Command AUPC Remote Enable 262Ah Command AUPC Local CL Action 262Bh Command AUPC Remote CL Action 262Ch Command AUPC Tracking Rate 262Dh Command AUPC Remote BB Loopback 262Eh Command AUPC Remote Test 2047 262Fh Command AUPC Eb/No 2630h Command AUPC Minimum Power 2631h Command AUPC Maximum Power 2632h Command AUPC Nominal Power 2633h Command AUPC Local Configuration 2634h Command AUPC Remote Configuration 2635h Command Modulator Reed Solomon N & K Codes 2636h Command Modulator Time Mark Transfer 2638h Command Demodulator Configuration 2A00h Command Demodulator Frequency 2A01h Command Demodulator Data Rate 2A02h Command Demodulator Strap Code 2A03h Command Demodulator Sweep Boundary 2A04h Command Demodulator Sweep Delay 2A05h Command Demodulator Demodulation Type 2A07h Command Demodulator Convolutional Decoder 2A08h Command Demodulator Differential Decoder 2A09h Command Demodulator Reed Solomon 2A0Ah Command Demodulator Mode 2A0Bh Command Demodulator Filter Mask 2A0Ch Command Demodulator Descrambler Control 2A0Dh Command Demodulator Descrambler Type 2A0Eh Command Demodulator Spectrum 2A0Fh Command Demodulator Buffer Size 2A10h Command Demodulator Buffer Clock 2A11h Command Demodulator Buffer Clock Polarity 2A12h Command Demodulator Insert Mode 2A13h Command Demodulator T1 E1 Frame Source 2A15h TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Command Demodulator Framing 2A16h Command Demodulator Operating Mode 2A17h Command Map Summary to Backward Alarm 2A18h Command Demodulator BER Exponent 2A1Ah Command Demodulator Circuit ID 2A1Bh Command Demodulator Terrestrial Loopback 2A1Ch Command Demodulator Baseband Loopback 2A1Dh Command Demodulator IF Loopback 2A1Eh Command Demodulator Interface Type 2A1Fh Command Center Buffer 2A20h Command Data Invert 2A21h Command Force Demodulator Summary Alarm 2A22h Command External EXC Source 2A23h Clear Latched Alarm 1 2A24h Clear Latched Alarm 2 2A25h Clear Latched Alarm 3 2A26h Clear Latched Alarm 4 2A2Eh Command Demod Reacquisition Sweep 2A2Fh Command Demod N & K Codes 2A32h Command Demodulator Time Mark Transfer 2A33h Command Drop and Insert Map Copy 2C00h Command Drop and Insert Map 2C01h Command Clear Latched Alarms 2C03h Command Set Time 2C04h Command Set Date 2C05h Command Set Time and Date 2C06h Clear Modem Common Latched Alarm 1 2C08h Clear Modem Common Latched Alarm 2 2C09h Command Modem Terminal Emulation 2C0Bh Command Modem Terminal Baud Rate 2C0Ch Command Configuration Copy 2C0Dh Command Modem Eb/No Threshold 2C0Eh Modem Soft Reset 2D00h 4.9.5 Detailed Command Descriptions 4.9.5.1 DMD15/DMD15L Modulator TM051 - Rev. 5.8 4-59 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem Opcode: <2400h> Query a modulator’s configuration and status Query Response <1> Number of nonvol bytes Configuration Bytes 0 = Closed Net. 1 = IDR, 2 = IBS, 3 = D&I <1> Mode <4> Frequency Selects the IF Frequency in Hz. The range is 50 MHz to 180 MHz for the 70/140 MHz type modems and 950 MHz to 1750 MHz for the L-Band modems. <2> Strap Code Binary value <1> Filter Mask 0 = INTELSAT, 1 = EUTELSAT, 2 = CLOSED NET1 <4> Data Rate Binary value, 1 bps steps <4> External EXC Clock Binary value, 1 Hz steps. 256 kHz to 10 MHz, In 8 kHz increments <4> External Reference Binary value, 1 Hz steps. 256 kHz to 10 MHz, In 8 kHz increments <1> Freq. Reference Source 0 = Internal, 1 = External, 2 = High stability <1> Modulation Type 0 = QPSK, 1 = BPSK, 2 = 8PSK, 3 = 16QAM, 4 = OQPSK <1> Convolutional Encoder 0 = None, 1 = Viterbi 1/2 Rate, 2 = Viterbi 2/3 Rate, 3 = Viterbi 3/4 Rate, 4 = Viterbi 5/6 Rate, 5 = Viterbi 7/8 Rate, 6 = Viterbi 8/9 Rate, 7 = Sequential 1/2 Rate, 8 = Sequential 2/3 Rate, 9 = Sequential 3/4 Rate, 10 = Sequential 5/6 Rate, 11 = Sequential 7/8 Rate, 12 = Sequential 8/9 Rate, 13 = Trellis 1/2 Rate, 14 = Trellis 2/3 Rate, 15 = Trellis 3/4 Rate, 16 = Trellis 5/6 Rate, 17 = Trellis 7/8 Rate, 18 = Trellis 8/9 Rate, 19 = SEQ 3/4 Rate, 20 = TPC .793 2D, 21 = TPC .495 3D, 22 = TPC .325 3D Reed Solomon 0 = Disable, 1 = Enable Scrambler Control 0 = Disable, 1 = Enable Scrambler Type 0 = None, 1 = IBS Scrm, 2 = V35_IESS, 3 = V35_CCITT, 4 = V35_EFDATA, 5 = V35_FAIRCHILD, 6 = OM73, 7 = RS Scrambler, 8 = V35_EFRS, 9 = TPC Scrambler Transmit Power Level Signed value. +50 to -300 (5.0 to -30.0 dBm). The range is +5.0 to –20 dBm for the 70/140 MHz type modems and –5.0 to –30 dBm for the L-Band type modems (implied decimal point) (two’s compliment). Differential Encoder 0 = Off, 1 = On, 2 = EF Mode* *Available in uncoded QPSK modulation for compatibility. Carrier Control 0 = Off, 1 = On Carrier Selection 0 = Normal. 1 = CW, 2 = Dual, 3 = Offset, 4 = Pos Fir, 5 = Neg Fir <1> <1> <1> <2> <1> <1> <1> 4-60 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Fir <1> Spectrum 0 = Normal, 1 = Inverted Operating Mode 0 = Normal, 1 = 2047 test Clock Control 0 = SCTE, 1 = SCT, 2 = EXT EXC Clock Polarity 0 = Normal, 1 = Inverted, 2 = Auto SCT Source 0 = Internal. 1 = SCR Framing 0 = No framing, 1 = 96K, 2 = 1/15, 3 = EF AUPC 1/15 Drop Mode 0 = Disabled, 1 = T1-D4, 2 = T1-ESF, 3 = PCM-30, 4 = PCM30C, 5 = PCM-31, 6 = PCM-31C, 7 = SLC-96, 8 = T1 D4 S, 9 = T1 ESF S Drop Map Timeslots to drop organized by satellite channel T1D4 Yellow Alarm Sel. 0 = Bit 2 equal 0 for all channels 1 = Frame 12 s-bits equal 1) Forced Alarms (0 = None, or else a 1 in the following bits means force) Bit 0 = Backward Alarm 1 IDR and IBS Bit 1 = Backward Alarm 2 IDR only Bit 2 = Backward Alarm 3 IDR only Bit 3 = Backward Alarm 4 IDR only Bit 4 = AIS Request Bit 5 = T1D4 Yellow Alarm. D&I Mode Bits 6 and 7 = Spares Alarm 1 Mask Bit 0 = Transmit processor Fault Bit 1 = Transmit output power level Fault Bit 2 = Transmit Oversample PLL lock Bit 3 = Composite clock PLL lock Bit 4 = IF synthesizer lock Bit 5 = IDR 96 PLL lock Bit 6 = RS FIFO fault Bit 7 = Mod Summary fault 0 = Mask, 1 = Allow Alarm 2 Mask Bit 0 = Terrestrial clock activity detect Bit 1 = Internal clock activity detect Bit 2 = Tx Sat clock activity detect Bit 3 = Tx data activity detect Bit 4 = Tx data AIS detect Bit 5 = Tx clock fallback Bit 6 & 7 = Spares <1> <1> <1> <1> <1> <1> <30> <1> <1> <1> <1> TM051 - Rev. 5.8 4-61 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 0 = Mask, 1 = Allow <1> Common Alarm 1 Mask Bit 0 = -12V alarm Bit 1 = +12V alarm Bit 2 = +5V alarm Bit 3 = Reserved Bit 4 = Battery Bit 5 = RAM and ROM alarm flag Bits 6 and 7 = Spares 0 = Mask, 1 = Allow Common Alarm 2 Mask Bit 0 = M&C processor fault Bit 1 = U IO card present, reserved in RCS10/10L mode Bit 2 = IF card present Bits 3 - 7 = Spares 0 = Mask, 1 = Allow Tx Circuit ID 11 ASCII characters Tx ESC Ch 1 Volume -20 to +10 (+10 dBm to –20 dBm) (two’s compliment) Tx ESC Ch 2 Volume -20 to +10 (+10 dBm to –20 dBm) (two’s compliment) Tx Interface Type 0 = G703-B-T1-AMI, 1 = G703-B-T1_B8ZS, 2 = G703-B-E1, 3 = G703-B-T2, 4 = G703-U-E1, 5 = G703-U-T2, 6 = G703-U-E2, 7 = RS-422, 8 = V.35, 9 = RS-232 Tx Terrestrial Loopback 0 = Disabled, 1 = Enabled Tx Baseband Loopback 0 = Disabled, 1 = Enabled Drop Status Mask Bit 0 = Frame lock mask Bit 1 = Multiframe lock mask. Valid in E1 PCM30 and PCM30C Bit 2 = CRC lock mask. Valid in T1ESF, and E1 CRC enabled Bit 3 = T1 yellow alarm received mask Bit 4 = E1 FAS alarm received mask Bit 5 = E1 MFAS alarm received mask. Not valid in FAS mode Bit 6 = E1 CRC alarm received mask Bit 7 = CRC calculation error 0 = Mask, 1 = Allow Tx RS N Code 2 - 255. Reed-Solomon code word length Tx RS K Code 1 - 254. Reed-Solomon message length Tx RS Depth 4 or 8 Data Invert 0 = None, 1 = Terrestrial, 2 = Baseband, 3 = Terrestrial and Baseband BPSK Symbol Pairing 0 = Normal Pairing, 1 = Swapped Pairing IDR Overhead Type 0 = 32K Voice. 1 = 64K Data Terminal Emulation 0 = Adds Viewpoint. 1 = VT100, 2 = WYSE50 <1> <11> <1> <1> <1> <1> <1> <1> <1> <1> <1> <1> <1> <1> <1> 4-62 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces <1> Terminal Baud Rate 0 = 300, 1 = 600, 2 = 1200, 3 = 2400, 4 = 4800, 5 = 9600, 6 = 19200, 7 = 38400, 8 = 150 FM Orderwire Mode 0 = Disable, 1 = Enable, 2 = FM Only FM Orderwire Test Tone 0 = Off, 1 = On AUPC Local Enable 0 = Off, 1 = On AUPC Remote Enable 0 = Off, 1 = On AUPC Local CL Action 0 = Hold, 1 = Nominal, 2 = Maximum AUPC Remote CL Action 0 = Hold, 1 = Nominal, 2 = Maximum AUPC Tracking Rate 0 = 0.5 dB/Min, 1 = 1.0 dB/Min, 2 = 1.5 dB/Min, 3 = 2.0 dB/Min, 4 = 2.5 dB/Min, 5 = 3.0 dB/Min, 6 = 3.5 dB/Min, 7 = 4.0 dB/Min, 8 = 4.5 dB/Min, 9 = 5.0 dB/Min, 10 = 5.5 dB/Min, 11 = 6.0 dB/min AUPC Remote BB Loopback 0 = Disable, 1 = Enable AUPC Remote 2047 0 = Disable, 1 = Enable AUPC Target Eb/No Target Eb/No at Receiver AUPC Minimum Power Singed value +50 to –200 with implied decimal point; 49 = +4.9 dBm (two’s compliment) AUPC Maximum Power Singed value +50 to –200 with implied decimal point; 49 = +4.9 dBm (two’s compliment) AUPC Nominal Power Singed value +50 to –200 with implied decimal point; 49 = +4.9 dBm (two’s compliment) Time Mark Transfer Enable 0 = Disable, 1 = Enable Time Mark Transfer Pattern Length Unsigned Binary (4 to 16) Inclusively <1> Reserved Reserved <1> Reserved Reserved <1> TPC Interleaver <1> Control Mode 0=Disable, 1=Enable Status Bytes 0 = Front Panel. 1 = Terminal, 2 = Computer <1> Revision Number Decimal point implied <1> <1> <1> <1> <1> <1> <1> <1> <1> <2> <2> <2> <2> <1> <1> TM051 - Rev. 5.8 4-63 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem <1> Alarm 1 Bit 0 = Transmit processor fault. 1 = Fail Bit 1 = Transmit output power level. 1 = Fail Bit 2 = Transmit Oversample PLL lock. 1 = Lock Bit 3 = Composite clock PLL lock. 1 = Lock Bit 4 = IF synthesizer lock. 1 = Lock Bit 5 = IDR 96 PLL lock. 1 = Lock Bit 6 = RS FIFO fault. 1 = Fail Bit 7 = Mod Summary fault. 1 = Fail <1> Alarm 2 Bit 0 = Terrestrial clock activity detect. 1 = Activity Bit 1 = Internal clock activity detect. 1 = Activity Bit 2 = Tx Sat clock activity detect. 1 = Activity Bit 3 = Tx data activity detect. 1 = Activity Bit 4 = Terrestrial AIS. Tx data AIS detect. 1 = AIS Fail Bit 5 = Tx clock fallback. 1 = Fail Bits 6 and 7 = Spares <1> Common Alarm 1 Bit 0 = -12V alarm. 1 = Fail Bit 1 = +12V alarm. 1 = Fail Bit 2 = +5V alarm. 1 = Fail Bit 3 = Reserved Bit 4 = Battery. 1 = Fail Bit 5 = RAM and ROM alarm flag. 1 = Fail Bits 6 and 7 = Spares <1> Common Alarm 2 Bit 0 = M&C processor fault. 1 = Fail Bit 1 = U IO card present. 1 = Present, reserved in RCS10/10L mode Bit 2 = IF card present. 1 = Present Bits 3 - 7 = Spares <1> Latched Alarm 1 Bit 0 = Transmit processor fault. 1 = Fail Bit 1 = Transmit output power level Fault. 1 = Fail Bit 2 = Transmit Oversample PLL lock Fault. 1 = Fail Bit 3 = Composite clock PLL lock Fault. 1 = Fail Bit 4 = IF synthesizer lock Fault. 1 = Fail Bit 5 = IDR 96 PLL Lock Fault. 1 = Fail Bit 6 = RS FIFO Fault. 1 = Fail Bit 7 = Mod Summary Fault. 1 = Fail <1> Latched Common Alarm 1 Bit 0 = -12V alarm. 1 = Fail Bit 1 = +12V alarm. 1 = Fail Bit 2 = +5V alarm. 1 = Fail Bit 3 = Reserved Bit 4 = Battery. 1 = Fail Bit 5 = RAM and ROM alarm flag. 1 = Fail Bits 6 and 7 = Spares <1> Latched Common Alarm 2 Bit 0 = M&C processor fault. 1 = Fail Bit 1 = U IO card present Fault. 1 = Fail, reserved in RCS10/10L mode Bit 2 = IF card present Fault. 1 = Fail Bits 3 - 7 = Spares <1> 4-64 Drop Status Bit 0 = Frame lock fault. 1 = Fail TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Bit 1 = Multiframe lock Fault. Valid in E1 PCM30 and PCM30C. 1 = Fail Bit 2 = CRC lock fault. Valid in T1ESF, and E1 CRC enabled. 1 = Fail Bit 3 = T1 yellow alarm received. 1 = Received Bit 4 = E1 FAS alarm received. 1 = Received Bit 5 = E1 MFAS alarm received. Not valid in FAS mode. 1 = Received Bit 6 = E1 CRC alarm received. 1 = Received Bit 7 = CRC calculation error. 1 = Fail <1> Online Flag 0 = Offline, 1 = Online <1> +5V Voltage +5V. Implied decimal point. ex: 49 = +4.9 V <1> +12V Voltage +12V. Implied decimal point. ex: 121 = +12.1 V <1> -12V Voltage -12V. Implied decimal point and minus sign. ex: 118 = -11.8 V <2> Temperature Degrees C. Implied decimal point. ex: 490 = 49.0 C (Not Implemented) <1> ESC Source 0 = Internal, 1 = External <1> Alarm 3 Bit 0 = Backward Alarm 1 Transmitted Bit 1 = Backward Alarm 2 Transmitted Bit 2 = Backward Alarm 3 Transmitted Bit 3 = Backward Alarm 4 Transmitted Bits 4 - 7 = Spare 0 = No, 1 = Yes <2> AUPC Remote Test 2047 BER Mantessa Binary value with implied decimal point; 795 = 7.95) <1> AUPC Remote Test 2047 BER Exponent Binary value with implied sign; 6 = -6 <1> Reserved Ignore <4> Symbol Rate Binary value, 1 sps steps Latched Alarm 2 Bit 0 = Terrestrial Clock. Activity Detect. 1 = Fail Bit 1 = Internal Clock. Activity Detect. 1 = Fail Bit 2 = Tx Sat Clock. Activity Detect. 1 = Fail Bit 3 = Tx Data Activity Detect. 1=Fail Bit 4 = Tx Data AIS Detect. 1=Fail Bit 5 = Tx Clock Fall Back. 1=Fail Bits 6 and 7 = Spares Reserved Reserved Latched Drop Status Bit 0 = Framelock Fault. 1=Fail Bit 1 = Multiframe Lock Fault. Valid in E1 PCM30 & PCM03. 1 = Fail Bit 2 = CRC Lock Fault. Valid in T1 ESF, & E1 CRC Enabled. 1 = Fail Bit 3-7 (Not Latched) <17> <2> <17> <4> Reserved TM051 - Rev. 5.8 Reserved 4-65 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem Opcode: <240Bh> Query a Modulator’s Status Query Response <1> Control Mode 0 = Front Panel. 1 = Terminal, 2 = Computer <1> Revision Number Decimal point implied <1> Alarm 1 Bit 0 = Transmit processor fault. 1 = Fail Bit 1 = Transmit output power level. 1 = Fail Bit 2 = Transmit Oversample PLL lock. 1 = Lock Bit 3 = Composite clock PLL lock. 1 = Lock Bit 4 = IF synthesizer lock. 1 = Lock Bit 5 = IDR 96 PLL lock. 1 = Lock Bit 6 = RS FIFO fault. 1 = Fail Bit 7 = Mod Summary fault. 1 = Fail <1> Alarm 2 Bit 0 = Terrestrial clock activity detect. 1 = Activity Bit 1 = Internal clock activity detect. 1 = Activity Bit 2 = Tx Sat clock activity detect. 1 = Activity Bit 3 = Tx data activity detect. 1 = Activity Bit 4 = Terrestrial AIS. Tx data AIS detect. 1 = AIS Fail Bit 5 = Tx clock fallback. 1 = Fail Bits 6 and 7 = Spares <1> Common Alarm 1 Bit 0 = -12V alarm. 1 = Fail Bit 1 = +12V alarm. 1 = Fail Bit 2 = +5V alarm. 1 = Fail Bit 3 = Reserved Bit 4 = Battery. 1 = Fail Bit 5 = RAM and ROM alarm flag. 1 = Fail Bits 6 and 7 = Spares <1> Common Alarm 2 Bit 0 = M&C processor fault. 1 = Fail Bit 1 = U IO card present. 1 = Present, reserved in RCS10/10L mode Bit 2 = IF card present. 1 = Present Bits 3 - 7 = Spares <1> Latched Alarm 1 Bit 0 = Transmit processor fault. 1 = Fail Bit 1 = Transmit output power level Fault. 1 = Fail Bit 2 = Transmit Oversample PLL lock Fault. 1 = Fail Bit 3 = Composite clock PLL lock Fault. 1 = Fail Bit 4 = IF synthesizer lock Fault. 1 = Fail Bit 5 = IDR 96 PLL Lock Fault. 1 = Fail Bit 6 = RS FIFO Fault. 1 = Fail Bit 7 = Mod Summary Fault. 1 = Fail <1> Latched Common Alarm 1 Bit 0 = -12V alarm. 1 = Fail Bit 1 = +12V alarm. 1 = Fail Bit 2 = +5V alarm. 1 = Fail Bit 3 = Reserved Bit 4 = Battery. 1 = Fail Bit 5 = RAM and ROM alarm flag. 1 = Fail Bits 6 and 7 = Spares <1> Latched Common Alarm 2 Bit 0 = M&C processor fault. 1 = Fail 4-66 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Alarm 2 Bit 1 = U IO card present Fault. 1 = Fail, reserved in RCS10/10L mode Bit 2 = IF card present Fault. 1 = Fail Bits 3 - 7 = Spares <1> Drop Status Bit 0 = Frame lock fault. 1 = Fail Bit 1 = Multiframe lock Fault. Valid in E1 PCM30 and PCM30C. 1 = Fail Bit 2 = CRC lock fault. Valid in T1ESF, and E1 CRC enabled. 1 = Fail Bit 3 = T1 yellow alarm received. 1 = Received Bit 4 = E1 FAS alarm received. 1 = Received Bit 5 = E1 MFAS alarm received. Not valid in FAS mode. 1 = Received Bit 6 = E1 CRC alarm received. 1 = Received Bit 7 = CRC calculation error. 1 = Fail <1> Online Flag 0 = Offline, 1 = Online <1> +5V Voltage +5V. Implied decimal point. ex: 49 = +4.9 V <1> +12V Voltage +12V. Implied decimal point. ex: 121 = +12.1 V <1> -12V Voltage -12V. Implied decimal point and minus sign. ex: 118 = -11.8 V <2> Temperature Degrees C. Implied decimal point. ex: 490 = 49.0 C (Not Implemented) <1> ESC Source 0 = Internal, 1 = External <1> Alarm 3 Bit 0 = Backward Alarm 1 Transmitted Bit 1 = Backward Alarm 2 Transmitted Bit 2 = Backward Alarm 3 Transmitted Bit 3 = Backward Alarm 4 Transmitted Bits 4 - 7 = Spare 0 = No, 1 = Yes <2> AUPC Remote Test 2047 BER Mantessa Binary value with implied decimal point; 795 = 7.95) <1> AUPC Remote Test 2047 BER Exponent Binary value with implied sign; 6 = -6 <1> Reserved Ignore <4> Symbol Rate Binary value, 1 sps steps Latched Alarm 2 Bit 0 = Terrestrial clock activity detect. 1 = Fail Bit 1 = Internal clock activity detect. 1 = Fail Bit 2 = Tx Sat Clock activity detect. 1 = Fail Bit 3 = Tx Data activity detect. 1 – Fail Bit 4 = Tx Data AIS detect. 1 = Fail Bit 5 = Tx clock fallback. 1 = Fail Bits 6 & 7 = Spares <2> Reserved Reserved <1> Latched Drop Status Bit 0 = Framelock fault. 1 = Fail Bit 1 = Multiframe lock fault. Valid in E1 PCM30 & PCM30C. 1 = Fail Bit 2 = CRC loclfault. Valid in T1, ESF, and E1 CRC enabled. 1 = Fail <17> TM051 - Rev. 5.8 4-67 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem Bits 3-7 (not latched) <4> Reserved Reserved Opcode: <2405h> Query a modulator’s latched alarms Query Response Bit 0 = Transmit processor fault. 1 = Fail <1> Latched Alarm 1 Bit 1 = Transmit output power level Fault. 1 = Fail Bit 2 = Transmit Oversample PLL lock Fault. 1 = Fail Bit 3 = Composite clock PLL lock Fault. 1 = Fail Bit 4 = IF synthesizer lock Fault. 1 = Fail Bit 5 = IDR 96 PLL Lock Fault. 1 = Fail Bit 6 = RS FIFO Fault. 1 = Fail Bit 7 = Mod Summary Fault. 1 = Fail <1> Latched Common Alarm 1 Bit 0 = -12V alarm. 1 = Fail Bit 1 = +12V alarm. 1 = Fail Bit 2 = +5V alarm. 1 = Fail Bit 3 = Reserved Bit 4 = Battery. 1 = Fail Bit 5 = RAM and ROM alarm flag. 1 = Fail Bits 6 and 7 = Spares <1> Latched Common Alarm 2 Bit 0 = M&C processor fault. 1 = Fail Bit 1 = U IO card present Fault. 1 = Fail, reserved in RCS10/10L mode Bit 2 = IF card present Fault. 1 = Fail Bits 3 - 7 = Spares <1> Latched Alarm 2 Bit 0 = Terrestrial clock activity detect. 1 = Fail Bit 1 = Internal clock activity detect. 1 = Fail Bit 2 = Tx Sat clock activity detect. 1 = Fail Bit 3 = Tx data activity detect. 1 = Fail Bit 4 = Tx data AIS detect. 1 = Fail Bit 5 = Tx clock fallback. 1 = Fail Bits 6-7 = Spares <1> Latched Drop Status Bit 0 = Frame lock fault. 1 = Fail Bit 1 = Multiframe fault. 1 = Fail PCM30 and PCM30C. 1 = Fail Bit 2 = CRC lock fault. Valid in T1 ESF And E1, CRC enabled. 1 = Fail Bits 3-7 (Not latched) Opcode: <2408h> Query a modulator’s current alarms Query Response <1> Alarm 1 Bit 0 = Transmit processor fault. 1 = Fail 4-68 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Bit 1 = Transmit output power level. 1 = Fail Bit 2 = Transmit Oversample PLL lock. 1 = Lock Bit 3 = Composite clock PLL lock. 1 = Lock Bit 4 = IF synthesizer lock. 1 = Lock Bit 5 = IDR 96 PLL lock. 1 = Lock Bit 6 = RS FIFO fault. 1 = Fail Bit 7 = Mod Summary fault. 1 = Fail <1> Alarm 2 Bit 0 = Terrestrial clock activity detect. 1 = Activity Bit 1 = Internal clock activity detect. 1 = Activity Bit 2 = Tx Sat clock activity detect. 1 = Activity Bit 3 = Tx data activity detect. 1 = Activity Bit 4 = Terrestrial AIS. Tx data AIS detect. 1 = AIS Fail Bit 5 = Tx clock fallback. 1 = Fail Bits 6 and 7 = Spares <1> Drop Status Bit 0 = Frame lock fault. 1 = Fail Bit 1 = Multiframe lock Fault. Valid in E1 PCM30 and PCM30C. 1 = Fail Bit 2 = CRC lock fault. Valid in T1ESF, and E1 CRC enabled. 1 = Fail Bit 3 = T1 yellow alarm received. 1 = Received Bit 4 = E1 FAS alarm received. 1 = Received Bit 5 = E1 MFAS alarm received. Not valid in FAS mode. 1 = Received Bit 6 = E1 CRC alarm received. 1 = Received Bit 7 = CRC calculation error. 1 = Fail <1> Common Alarm 1 Bit 0 = -12V alarm. 1 = Fail Bit 1 = +12V alarm. 1 = Fail Bit 2 = +5V alarm. 1 = Fail Bit 3 = Reserved Bit 4 = Battery. 1 = Fail Bit 5 = RAM and ROM alarm flag. 1 = Fail Bits 6 and 7 = Spares <1> Common Alarm 2 Bit 0 = M&C processor fault. 1 = Fail Bit 1 = U IO card present. 1 = Present, reserved in RCS10/10L mode Bit 2 = IF card present. 1 = Present Bits 3 - 7 = Spares Opcode: <2600h> Command a modem’s control mode 0 = Front panel. 1 = Terminal, 2 = Computer <1> Modem control mode Opcode: <2601h> Command a modulator’s configuration 0 = Closed Net. 1 = IDR, 2 = IBS, 3 = D&I <1> Mode <4> Frequency Selects the IF Frequency in Hz. The range is 50 MHz to 180 MHz for the 70/140 MHz type modems and 950 MHz to 1750 MHz for the L-Band modems. <2> Strap Code Binary value <1> Filter Mask 0 = INTELSAT, 1 = EUTELSAT, 2 = CLOSED NET1 <4> Data Rate Binary value, 1 bps steps TM051 - Rev. 5.8 4-69 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem <4> External EXC Clock Binary value, 1 Hz steps. 256 kHz to 10 MHz, In 8 kHz increments <4> External Reference Binary value, 1 Hz steps. 256 kHz to 10 MHz, In 8 kHz increments <1> Freq. Reference Source 0 = Internal, 1 = External, 2 = High stability <1> Modulation Type 0 = QPSK, 1 = BPSK, 2 = 8PSK, 3 = 16QAM, 4 = OQPSK <1> Convolutional Encoder 0 = None, 1 = Viterbi 1/2 Rate, 2 = Viterbi 2/3 Rate, 3 = Viterbi 3/4 Rate, 4 = Viterbi 5/6 Rate, 5 = Viterbi 7/8 Rate, 6 = Viterbi 8/9 Rate, 7 = Sequential 1/2 Rate, 8 = Sequential 2/3 Rate, 9 = Sequential 3/4 Rate, 10 = Sequential 5/6 Rate, 11 = Sequential 7/8 Rate, 12 = Sequential 8/9 Rate, 13 = Trellis 1/2 Rate, 14 = Trellis 2/3 Rate, 15 = Trellis 3/4 Rate, 16 = Trellis 5/6 Rate, 17 = Trellis 7/8 Rate, 18 = Trellis 8/9 Rate, 19 = SEQ 3/4 Rate, 20 = TPC .793 2D, 21 = TPC .495 3D, 22 = TPC .325 3D 0 = Disable, 1 = Enable <1> Reed Solomon 0 = Disable, 1 = Enable Scrambler Control 0 = None, 1 = IBS Scrm, 2 = V35_IESS, 3 = V35_CCITT, 4 = V35_EFDATA, 5 = V35_FAIRCHILD, 6 = OM73, 7 = RS Scrambler, 8 = V35_EFRS, 9 = TPC Scrambler <1> <1> Scrambler Type <2> Transmit Power Level Signed value. +50 to -300 (5.0 to -30.0 dBm). The range is +5.0 to –20 dBm for the 70/140 MHz type modems and –5.0 to –30 dBm for the L-Band type modems (implied decimal point) (two’s compliment). Differential Encoder 0 = Off, 1 = On, 2 = EF Mode* *Available in uncoded QPSK modulation for compatibility. Carrier Control 0 = Off, 1 = On Carrier Selection 0 = Normal. 1 = CW, 2 = Dual, 3 = Offset, 4 = Pos Fir, 5 = Neg Fir Spectrum 0 = Normal, 1 = Inverted Operating Mode 0 = Normal, 1 = 2047 test Clock Control 0 = SCTE, 1 = SCT, 2 = EXT EXC Clock Polarity 0 = Normal, 1 = Inverted, 2 = Auto SCT Source 0 = Internal. 1 = SCR Framing 0 = No framing, 1 = 96K, 2 = 1/15, 3 = EF AUPC 1/15 Drop Mode 0 = Disabled, 1 = T1-D4, 2 = T1-ESF, 3 = PCM-30, 4 = PCM30C, 5 = PCM-31, 6 = PCM-31C, 7 = SLC-96, 8 = T1 D4 S, 9 = T1 ESF S <1> <1> <1> <1> <1> <1> <1> <1> <1> <1> 4-70 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces <30> Drop Map Timeslots to drop organized by satellite channel T1D4 Yellow Alarm Sel. 0 = Bit 2 equal 0 for all channels 1 = Frame 12 s-bits equal 1) Forced Alarms (0 = None, or else a 1 in the following bits means force) Bit 0 = Backward Alarm 1 IDR and IBS Bit 1 = Backward Alarm 2 IDR only Bit 2 = Backward Alarm 3 IDR only Bit 3 = Backward Alarm 4 IDR only Bit 4 = AIS Request Bit 5 = T1D4 Yellow Alarm. D&I Mode Bits 6 and 7 = Spares Alarm 1 Mask Bit 0 = Transmit processor Fault Bit 1 = Transmit output power level Fault Bit 2 = Transmit Oversample PLL lock Bit 3 = Composite clock PLL lock Bit 4 = IF synthesizer lock Bit 5 = IDR 96 PLL lock Bit 6 = RS FIFO fault Bit 7 = Mod Summary fault 0 = Mask, 1 = Allow Alarm 2 Mask Bit 0 = Terrestrial clock activity detect Bit 1 = Internal clock activity detect Bit 2 = Tx Sat clock activity detect Bit 3 = Tx data activity detect Bit 4 = Tx data AIS detect Bit 5 = Tx clock fallback Bit 6 & 7 = Spares 0 = Mask, 1 = Allow Common Alarm 1 Mask Bit 0 = -12V alarm Bit 1 = +12V alarm Bit 2 = +5V alarm Bit 3 = Reserved Bit 4 = Battery Bit 5 = RAM and ROM alarm flag Bits 6 and 7 = Spares 0 = Mask, 1 = Allow Common Alarm 2 Mask Bit 0 = M&C processor fault Bit 1 = U IO card present, reserved in RCS10/10L mode Bit 2 = IF card present Bits 3 - 7 = Spares 0 = Mask, 1 = Allow Tx Circuit ID 11 ASCII characters Tx ESC Ch 1 Volume -20 to +10 (+10 dBm to –20 dBm) (two’s compliment) <1> <1> <1> <1> <1> <1> <11> <1> TM051 - Rev. 5.8 4-71 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem <1> Tx ESC Ch 2 Volume -20 to +10 (+10 dBm to –20 dBm) (two’s compliment) Tx Interface Type 0 = G703-B-T1-AMI, 1 = G703-B-T1_B8ZS, 2 = G703-B-E1, 3 = G703-B-T2, 4 = G703-U-E1, 5 = G703-U-T2, 6 = G703-U-E2, 7 = RS-422, 8 = V.35, 9 = RS-232 Tx Terrestrial Loopback 0 = Disabled, 1 = Enabled Tx Baseband Loopback 0 = Disabled, 1 = Enabled Drop Status Mask Bit 0 = Frame lock mask Bit 1 = Multiframe lock mask. Valid in E1 PCM30 and PCM30C Bit 2 = CRC lock mask. Valid in T1ESF, and E1 CRC enabled Bit 3 = T1 yellow alarm received mask Bit 4 = E1 FAS alarm received mask Bit 5 = E1 MFAS alarm received mask. Not valid in FAS mode Bit 6 = E1 CRC alarm received mask Bit 7 = CRC calculation error 0 = Mask, 1 = Allow Tx RS N Code 2 - 255. Reed-Solomon code word length Tx RS K Code 1 - 254. Reed-Solomon message length Tx RS Depth 4 or 8 Data Invert 0 = None, 1 = Terrestrial, 2 = Baseband, 3 = Terrestrial and Baseband BPSK Symbol Pairing 0 = Normal Pairing, 1 = Swapped Pairing IDR Overhead Type 0 = 32K Voice. 1 = 64K Data Terminal Emulation 0 = Adds Viewpoint. 1 = VT100, 2 = WYSE50 Terminal Baud Rate 0 = 300, 1 = 600, 2 = 1200, 3 = 2400, 4 = 4800, 5 = 9600, 6 = 19200, 7 = 38400, 8 = 150 FM Orderwire Mode 0 = Disable, 1 = Enable, 2 = FM Only FM Orderwire Test Tone 0 = Off, 1 = On AUPC Local Enable 0 = Off, 1 = On AUPC Remote Enable 0 = Off, 1 = On AUPC Local CL Action 0 = Hold, 1 = Nominal, 2 = Maximum AUPC Remote CL Action 0 = Hold, 1 = Nominal, 2 = Maximum AUPC Tracking Rate 0 = 0.5 dB/Min, 1 = 1.0 dB/Min, 2 = 1.5 dB/Min, 3 = 2.0 dB/Min, <1> <1> <1> <1> <1> <1> <1> <1> <1> <1> <1> <1> <1> <1> <1> <1> <1> <1> <1> 4-72 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces 4 = 2.5 dB/Min, 5 = 3.0 dB/Min, 6 = 3.5 dB/Min, 7 = 4.0 dB/Min, 8 = 4.5 dB/Min, 9 = 5.0 dB/Min, 10 = 5.5 dB/Min, 11 = 6.0 dB/min <1> AUPC Remote BB Loopback 0 = Disable, 1 = Enable AUPC Remote 2047 0 = Disable, 1 = Enable AUPC Target Eb/No Target Eb/No at Receiver AUPC Minimum Power Singed value +50 to –200 with implied decimal point; 49 = +4.9 dBm (two’s compliment) AUPC Maximum Power Singed value +50 to –200 with implied decimal point; 49 = +4.9 dBm (two’s compliment) AUPC Nominal Power Singed value +50 to –200 with implied decimal point; 49 = +4.9 dBm (two’s compliment) Time Mark Transfer Enable 0 = Disable, 1 = Enable Time Mark Transfer Pattern Length Unsigned Binary (4 to 16) Inclusively <1> Reserved Reserved <1> Reserved Reserved <1> TPC Interleaver 0 = Disable, 1 = Enable <1> <2> <2> <2> <2> <1> <1> Opcode: <2602h> Command a modulator's frequency Selects the IF Frequency in Hz. The range is 50 MHz to 180 <4> Frequency MHz for the 70/140 MHz type modems and 950 MHz to 1750 MHz for the L-Band modems. Note: This command also turns the carrier off to protect the satellite. Opcode: <2603h> Command a modulator's strap code Binary value <2> Strap Code Note: This command also turns the carrier off to protect the satellite. Opcode: <2604h> Command a modulator's data rate Binary value, 1 bps steps <4> Data Rate Note: This command also turns the carrier off to protect the satellite. Opcode: <2605h> Command a modulator's filter mask 0 = INTELSAT, 1 = EUTELSAT, 2 = CLOSED NET1 <1> Filter Mask TM051 - Rev. 5.8 4-73 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem Opcode: <2606h> Command a modulator's modulation type 0 = QPSK, 1 = BPSK, 2 = 8PSK, 3 = 16QAM, 4 = OQPSK <1> Modulation Type Opcode: <2607h> Command a modulator’s convolutional encoder <1> Convolutional 0 = None, 1 = Viterbi 1/2 Rate, 2 = Viterbi 2/3 Rate, 3 = Viterbi Encoder 3/4 Rate, 4 = Viterbi 5/6 Rate, 5 = Viterbi 7/8 Rate, 6 = Viterbi 8/9 Rate, 7 = Sequential 1/2 Rate, 8 = Sequential 2/3 Rate, 9 = Sequential 3/4 Rate, 10 = Sequential 5/6 Rate, 11 = Sequential 7/8 Rate, 12 = Sequential 8/9 Rate, 13 = Trellis 1/2 Rate, 14 = Trellis 2/3 Rate, 15 = Trellis 3/4 Rate, 16 = Trellis 5/6 Rate, 17 = Trellis 7/8 Rate, 18 = Trellis 8/9 Rate, 19 = SEQ 3/4 Rate, 20 = TPC .793 2D, 21 = TPC .495 3D, 22 = TPC .325 3D Note: This command also turns the carrier off to protect the satellite. Opcode: <2608h> Command a modulator’s differential encoder <1> Differential Encoder 0 = Off, 1 = On, 2 = EF Mode* *Available in uncoded QPSK modulation for compatibility. Opcode: <2609h> Command a modulator’s carrier control 0 = Off, 1 = On <1> Carrier Control Opcode: <260Ah> Command a modulator’s carrier selection 0 = Normal. 1 = CW, 2 = Dual, 3 = Offset, 4 = Pos Fir, 5 = Neg Fir <1> Carrier Selection Opcode: <260Bh> Command a modulator’s clock control 0 = SCTE, 1 = SCT, 2 = EXT EXC <1> Clock Control Opcode: <260Ch> Command a modulator’s clock polarity 0 = Normal, 1 = Inverted, 2 = Auto <1> Clock Polarity Opcode: <260Dh> Command a modulator’s SCT source <1> SCT Source 0 = Internal. 1 = SCR Opcode: <260Eh> Command a modulator’s drop mode <1> Drop Mode 0 = Disabled, 1 = T1-D4, 2 = T1-ESF, 3 = PCM-30, 4 = PCM30C, 5 = PCM-31, 6 = PCM-31C, 7 = SLC-96, 8 = T1 D4 S, 9 = T1 ESF S Opcode: <260Fh> Command a modulator’s output level <2> Transmit Power Level Signed value. +50 to -300 (5.0 to -30.0 dBm). The range is +5.0 to –20 dBm for the 70/140 MHz type modems and –5.0 to –30 dBm for the L-Band type modems (implied decimal point) (two’s compliment). Opcode: <2610h> Command a modulator's Reed Solomon <1> Reed Solomon 0 = Disable, 1 = Enable Opcode: <2611h> Command a modulator's spectrum <1> Spectrum 0 = Normal, 1 = Inverted Opcode: <2612h> Command a modulator's operating mode 4-74 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem <1> Operating Mode User Interfaces 0 = Normal, 1 = 2047 test Opcode: <2613h> Command a modulator's scrambler control <1> Scrambler Control 0 = Disable, 1 = Enable Opcode: <2614h> Command a modulator's scrambler type <1> Scrambler Type 0 = None, 1 = IBS Scrm, 2 = V35_IESS, 3 = V35_CCITT, 4 = V35_EFDATA, 5 = V35_FAIRCHILD, 6 = OM73, 7 = RS Scrambler, 8 = V35_EFRS, 9 = TPC Scrambler Opcode: <2615h> Command a modulator's framing <1> Framing 0 = No framing, 1 = 96K, 2 = 1/15, 3 = EF AUPC 1/15 Opcode: <2616h> Command a modem's external reference source <1> External Reference 0 = Internal, 1 = External, 2 = High stability Source Opcode: <2617h> Command a modulator's terrestrial loopback 0 = Disabled, 1 = Enabled <1> Tx Terrestrial Loopback Opcode: <2618h> Command a modulator's baseband loopback 0 = Disabled, 1 = Enabled <1> Tx Baseband Loopback Opcode: <2619h> Command a modulator’s mode <1> Mode 0 = Closed Net. 1 = IDR, 2 = IBS, 3 = D&I Opcode: <261Ah> Command a modem’s external EXC clock <4> External EXC Clock Binary value, 1 Hz steps. 256 kHz to 10 MHz, In 8 kHz increments Opcode: <261Bh> Command a modem’s external reference frequency <4> External Reference Binary value, 1 Hz steps. 256 kHz to 10 MHz, In 8 kHz Frequency increments Opcode: <261Dh> Command a modulator’s T1D4 Yellow alarm selection 0 = Bit 2 equal 0 for all channels <1> T1D4 Yellow Alarm Sel. 1 = Frame 12 s-bits equal 1 Opcode: <261Eh> Command a modulator’s interface type 0 = G703-B-T1-AMI, 1 = G703-B-T1_B8ZS, 2 = G703-B-E1, 3 = <1> Tx Interface Type G703-B-T2, 4 = G703-U-E1, 5 = G703-U-T2, 6 = G703-U-E2, 7 = RS422, 8 = V.35, 9 = RS-232 Opcode: <261Fh> Command a modulator’s circuit ID 11 ASCII characters <11> Tx Circuit ID Opcode: <2622h> Command Force Mod Summary Alarms 0 = Do not force. 1 = Force <1> Summary Alarm Opcode: <2623h> Command Data Invert 0 = None, 1 = Terrestrial, 2 = Baseband, 3 = Terrestrial and <1> Data Invert Baseband Opcode: <2625h> Clear Latched Alarm 1 (No Data) Opcode: <2629h> Command AUPC Local Enable 0 = Off, 1 = On <1> AUPC Local Enable TM051 - Rev. 5.8 4-75 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem Opcode: <262Ah> Command AUPC Remote Enable 0 = Off, 1 = On <1> AUPC Remote Enable Opcode: <262Bh> Command AUPC Local CL Action 0 = Hold, 1 = Nominal, 2 = Maximum <1> AUPC Local CL Action Opcode: <262Ch> Command AUPC Remote CL Action 0 = Hold, 1 = Nominal, 2 = Maximum <1> AUPC Remote CL Action Opcode: <262Dh> Command AUPC Tracking Rate <1> AUPC Tracking Rate 0 = 0.5 dB/Min, 1 = 1.0 dB/Min, 2 = 1.5 dB/Min, 3 = 2.0 dB/Min, 4 = 2.5 dB/Min, 5 = 3.0 dB/Min, 6 = 3.5 dB/Min, 7 = 4.0 dB/Min, 8 = 4.5 dB/Min, 9 = 5.0 dB/Min, 10 = 5.5 dB/Min, 11 = 6.0 dB/min Opcode: <262Eh> Command AUPC Remote Baseband Loopback <1> AUPC Remote BB 0 = Disable, 1 = Enable Loopback Opcode: <262Fh> Command AUPC Remote Test 2047 <1> AUPC Remote 2047 0 = Disable, 1 = Enable Opcode: <2630h> Command AUPC Eb/No <2> AUPC Target Eb/No Target Eb/No at Receiver Opcode: <2631h> Command AUPC Minimum Power <2> AUPC Minimum Singed value +50 to –200 with implied decimal point; 49 = +4.9 Power dBm (two’s compliment) Opcode: <2632h> Command AUPC Maximum Power <2> AUPC Maximum Singed value +50 to –200 with implied decimal point; 49 = +4.9 Power dBm (two’s compliment) Opcode: <2633h> Command AUPC Nominal Power <2> AUPC Nominal Power Singed value +50 to –200 with implied decimal point; 49 = +4.9 dBm (two’s compliment) Opcode: <2634h> Command AUPC Local Configuration 0 = Off, 1 = On <1> AUPC Local Enable <1> AUPC Local CL Action 0 = Hold, 1 = Nominal, 2 = Maximum <1> AUPC Tracking Rate 0 = 0.5 dB/Min, 1 = 1.0 dB/Min, 2 = 1.5 dB/Min, 3 = 2.0 dB/Min, 4 = 2.5 dB/Min, 5 = 3.0 dB/Min, 6 = 3.5 dB/Min, 7 = 4.0 dB/Min, 8 = 4.5 dB/Min, 9 = 5.0 dB/Min, 10 = 5.5 dB/Min, 11 = 6.0 dB/min <1> AUPC Remote CL Action 0 = Hold, 1 = Nominal, 2 = Maximum <2> AUPC Target Eb/No Target Eb/No at Receiver <2> AUPC Minimum Singed value +50 to –200 with implied decimal point; 49 = +4.9 4-76 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Power dBm (two’s compliment) <2> AUPC Maximum Power Singed value +50 to –200 with implied decimal point; 49 = +4.9 dBm (two’s compliment) <2> AUPC Nominal Power Singed value +50 to –200 with implied decimal point; 49 = +4.9 dBm (two’s compliment) Opcode: <2635h> Command AUPC Remote Configuration <1> AUPC Remote Enable 0 = Off, 1 = On <1> AUPC Remote BB Loopback 0 = Disable, 1 = Enable <1> AUPC Remote 2047 0 = Disable, 1 = Enable Opcode: <2636h> Command Modulator Reed Solomon N & K Codes and Interleaver Depth 2 - 255. Reed-Solomon code word length <1> Tx RS N Code <1> Tx RS K Code 1 - 254. Reed-Solomon message length <1> Tx RS Depth 4 or 8 Reed-Solomon Interleaver Depth Opcode: <2638h> Command a modulator’s Time Mark Transfer 0 = Disable, 1 = Enable <1> Time Mark Transfer Enable <1> Time Mark Transfer Pattern Length Unsigned Binary (4 to 16) Inclusively 4.9.5.2 DMD15/DMD15L Demodulator Opcode: <2401h> Query a demodulator's configuration and status Query Response <1> Number of nonvol bytes Configuration Bytes 0 = Closed Net. 1 = IDR, 2 = IBS, 3 = D&I <1> Mode <4> Frequency Selects the IF frequency in Hz. The range is 50 MHz to 180 MHz for the 70/140 MHz type modems and 950 MHz to 1750 MHz for the L-Band Modems. <2> Sweep Delay Unsigned binary value, decimal point implied, 0.1 second steps 0.0 – 900.0 <4> Data Rate Binary value, 1 bps steps <1> Sweep Boundary Sweep limits. Max of ± 32 kHz in kHz steps 1 - 32 <1> Input Level Limit Lower level limit, binary value, 1 dB steps. Reserved <2> Strap Code Binary value <1> Filter Mask 0 = INTELSAT, 1 = EUTELSAT, 2 = CLOSED NET1 TM051 - Rev. 5.8 4-77 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem <1> Demodulation Type 0 = QPSK, 1 = BPSK, 2 = 8PSK, 3 = 16QAM, 4 = OQPSK <1> Convolutional Decoder 0 = None, 1 = Viterbi 1/2 Rate, 2 = Viterbi 2/3 Rate, 3 = Viterbi 3/4 Rate, 4 = Viterbi 5/6 Rate, 5 = Viterbi 7/8 Rate, 6 = Viterbi 8/9 Rate, 7 = Sequential 1/2 Rate, 8 = Sequential 2/3 Rate, 9 = Sequential 3/4 Rate, 10 = Sequential 5/6 Rate, 11 = Sequential 7/8 Rate, 12 = Sequential 8/9 Rate, 13 = Trellis 1/2 Rate, 14 = Trellis 2/3 Rate, 15 = Trellis 3/4 Rate, 16 = Trellis 5/6 Rate, 17 = Trellis 7/8 Rate, 18 = Trellis 8/9 Rate, 19 = SEQ 3/4 Rate, 20 = TPC .793 2D, 21 = TPC .495 3D, 22 = TPC .325 3D 0 = Disable, 1 = Enable <1> Reed Solomon <1> 0 = Off, 1 = On, 2 = EF Mode* *Available in uncoded QPSK modulation for compatibility. Differential Decoder 0 = Disable, 1 = Enable <1> Descrambler Control <1> Descrambler Type 0 = None, 1 = IBS Scrm., 2 = V35_IESS, 3 = V35_CCITT, 4 = V35_EFDATA, 5 = V35_FAIRCHILD, 6 = OM73, 7 = RS Descrambler, 8 = V.35 EF RS Descrambler, 9 = TPC Scrambler 0 = Normal, 1 = Inverted <1> Spectrum Indicates buffer size in msecs. 0 through 32 Buffer Size Msec 0 = SCTE, 1 = SCT, 2 = EXT EXC, 3 = RX SAT Buffer Clock 0 = Normal, 1 = Inverted Buffer Clock Polarity 0 = Disabled, 1 = T1-D4, 2 = T1-ESF, 3 = PCM-30, 4 = PCM30C, 5 = PCM-31, 6 = PCM-31C, 7 = SLC-96, 8 = T1 D4 S, 9 = T1 ESF S <1> <1> <1> <1> Insert Mode 0 = Internal, 1 = External <1> T1E1 Frame Source Timeslots to insert organized by satellite channel Insert Map 0 = No framing, 1 = 96K, 2 = 1/15, 3 = EF AUPC 1/15 Framing 0 = Stop, 1 = 2047 test <30> <1> <1> Operating Mode <1> Map Summary To Backward Alarm 0 = None, 1 = BK1, 2 = BK2, 3 = BK1 & 2, 4 = BK3, 5 = BK1 & 3, 6 = BK2 & 3, 7 = BK1, 2 & 3, 8 = BK4, 9 = BK1 & 4, 10 = BK2 & 4, 11 = BK1, 2 & 4, 12 = BK3 & 4, 13 = BK1, 3 & 4, 14 = BK2, 3 & 4, 15 = BK1, 2, 3 & 4 0 = None, 1 = Send the Alarm Bits 0 – 7 = Spares <1> Forced Alarms <1> Alarm 1 Mask 4-78 Bit 0 = Rx proc Bit 1 = Carrier Loss Bit 2 = Multiframe Sync Loss Bit 3 = Frame Sync Loss Bit 4 = IBS BER Alarm TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Bit 5 = Satellite AIS Bit 6 = Rx Data Activity Bit 7 = Rx AGC Level 0 = Mask, 1 = Allow <1> Alarm 2 Mask <1> Alarm 3 Mask <1> Alarm 4 Mask <1> Common Alarm 1 Mask <1> Common Alarm 2 Mask Bit 0 = Buffer underflow Bit 1 = Buffer overflow Bit 2 = Buffer under 10% Bit 3 = Buffer over 90% Bit 4 = RS Decoder Lock Fault Bit 5 = RS De-Interleaver Fault Bit 6 = RS Decoder Uncorrectable Word Bit 7 = Summary Fault 0 = Mask, 1 = Allow Bit 0 = IF synthesizer lock detect Bit 1 = Rx Oversample PLL lock detect Bit 2 = Buffer clock PLL lock detect Bit 3 = Viterbi decoder lock Bit 4 = Sequential decoder lock Bit 5 = Rx 2047 test pattern lock Bit 6 = External reference PLL lock Bit 7 = IDR 96K PLL Lock 0 = Mask, 1 = Allow Bit 0 = Buffer clock activity detect Bit 1 = External BNC activity detect, reserved in RCS10/10L mode Bit 2 = Rx satellite clock activity detect Bit 3 = Insert clock activity detect Bit 4 = External reference PLL activity, reserved in RCS10/10L mode Bit 5 = High Stability reference PLL activity, reserved in RCS10/10L mode Bit 6 = Rx clock fallback Bit 7 = Eb/No Threshold 0 = Mask, 1 = Allow Bit 0 = -12V alarm Bit 1 = +12V alarm Bit 2 = +5V alarm Bit 3 = Reserved Bit 4 = Battery Bit 5 = RAM and ROM alarm flag Bits 6 and 7 = Spares 0 = Mask, 1 = Allow Bit 0 = M&C processor fault Bit 1 = U IO card present, reserved in RCS10/10L mode Bit 2 = IF card present Bits 3 - 7 = Spares 0 = Mask, 1 = Allow Binary value, valid in IDR only, +10 dBm to –20 dBm (two’s compliment) <1> ESC Channel 1 Volume TM051 - Rev. 5.8 Binary value, valid in IDR only, +10 dBm to –20 dBm (two’s 4-79 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem compliment) <1> ESC Channel 2 Volume 6 through 9 for Viterbi, 5 through 7 for Sequential BER Exponent 11 ASCII characters Rx Circuit ID 0 = Disabled, 1 = Enabled Rx Terrestrial Loopback 0 = Disabled, 1 = Enabled Rx Baseband Loopback 0 = Disabled, 1 = Enabled <1> <11> <1> <1> <1> Rx IF Loopback <1> Rx Interface Type <1> Insert Status Mask 0 = G703-B-T1-AMI, 1 = G703-B-T1_B8ZS, 2 = G703-B-E1, 3 = G703-B-T2, 4 = G703-U-E1, 5 = G703-U-T2, 6 = G703-U-E2, 7 = RS-422, 8 = V.35, 9 = RS-232 Bit 0 = Frame lock Bit 1 = Multiframe lock. Valid in E1 PCM30 and PCM30C Bit 2 = CRC lock. Valid in T1ESF, and E1 CRC enabled Bit 3 = T1 yellow alarm received Bit 4 = E1 FAS alarm received Bit 5 = E1 MFAS alarm received. Not valid in FAS mode Bit 6 = E1 CRC alarm received Bit 7 = CRC calculation error 0 = Mask, 1 = Allow 2 - 255 Reed-Solomon code word length <1> Rx Reed Solomon N Code 1 - 254 Reed-Solomon message length Rx Reed Solomon K Code 4 or 8 <1> <1> Rx Reed Solomon Depth <1> 0 = BNC EXC, 1 = Balanced EXC, 2 = IDI, 3 = SYS [RCS10 Only] External Clock Source 0 = None, 1 = Terrestrial, 2 = Baseband 3 = Terrestrial and Baseband <1> Data Invert <1> Alarm 5 Masks Bit 0 = Trellis Decoder Lock Bit 1 = FM DSP Lock Mask Bit 2 = T1 signaling fault Bit 3 = Turbo Codec Lock Fault Bits 4 - 7 = Spares 0 = Mask, 1 = Allow 0 = Normal, 1 = Swapped <1> BPSK Symbol Pairing 0 = Normal, 1 = Enhanced ES Mode 0 = RS-232, 1 = RS-485 ES Type 0 = 150. 1 = 300, 2 = 600, 3 = 1200, 4 = 2400, 5 = 4800, 6 = 9600 <1> <1> <1> 4-80 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces ES Baud 0 = 7 Bits. 1 = 8 Bits <1> ES Data Bits 0 = 32K Voice. 1 = 64K Data IDR Overhead Type 0 = Disable, 1 = Enable, 2 = FM Only FM Orderwire Mode Unsigned Binary (4 to 16) Inclusively Time Mark Transfer Pattern Length Unsigned Binary Value, 0-99, Implied Decimal Point 0.0 - 9.9 dB Eb/No Threshold Unsigned binary value Sweep limits. Max of +/- 32000 Hz in 1 Hz steps 0 – 32000 <1> <1> <1> <1> <2> Reacquisition Sweep Boundary <3> Reserved Reserved <1> TPC Deintereleaver <1> Control Mode 0=Disable, 1=Enable Status Bytes 0 = Front Panel. 1 = Terminal, 2 = Computer <1> Revision Number Decimal point implied <1> Alarm 1 Bit 0 = Receive processor fault. 1 = Fail Bit 1 = Carrier Loss. 0 = pass. 1 = Fail Bit 2 = Multiframe Sync Loss 0 = pass. 1 = Fail Bit 3 = Frame Sync Loss 0 = pass. 1 = Fail Bit 4 = IBS BER Alarm 0 = pass. 1 = Fail Bit 5 = Satellite AIS 0 = pass. 1 = Fail Bit 6 = Rx Data Activity. 1 = Activity Bit 7 = RX AGC Level. 0 = Pass, 1 = Fail <1> Alarm 2 Bit 0 = Buffer underflow. 0 = OK. 1 = Underflow Bit 1 = Buffer overflow. 0 = OK. 1 = Overflow Bit 2 = Buffer under 10%. 1 = Under 10% Bit 3 = Buffer over 90%. 1 = Over 90% Bit 4 = RS Decoder Lock Fault. 1 = Fail Bit 5 = RS De-Interleaver Fault. 1 = Fail Bit 6 = RS Decoder Uncorrectable Word. 1 = Fail Bit 7 = Summary Fault. 1 = Fail <1> Alarm 3 Bit 0 = IF synthesizer lock detect. 1 = Lock Bit 1 = Rx Oversample PLL lock detect. 1 = Lock Bit 2 = Buffer clock PLL lock detect. 1 = Lock Bit 3 = Viterbi decoder lock. 1 = Lock Bit 4 = Sequential decoder lock. 1 = Lock Bit 5 = Rx 2047 test pattern lock. 1 = Lock Bit 6 = External reference PLL lock. 1 = Lock Bit 7 = IDR 96K PLL Lock. 1 = Lock TM051 - Rev. 5.8 4-81 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem <1> Alarm 4 Bit 0 = Buffer clock activity detect. 1 = Activity Bit 1 = External BNC activity detect. 1 = Activity, reserved in RCS10/10L mode Bit 2 = Rx satellite clock activity detect. 1 = Activity Bit 3 = Insert clock activity detect. 1 = Activity Bit 4 = External reference PLL activity. 1 = Activity, reserved in RCS10/10L mode Bit 5 = High Stability reference PLL activity. 1 = Activity, reserved in RCS10/10L mode Bit 6 = Rx clock fallback. 1 = Fail Bit 7 = Eb/No Threshold, 1 = Fail <1> Common Alarm 1 Bit 0 = -12V alarm. 1 = Fail Bit 1 = +12V alarm. 1 = Fail Bit 2 = +5V alarm. 1 = Fail Bit 3 = Reserved Bit 4 = Battery. 1 = Fail Bit 5 = RAM and ROM alarm flag. 1 = Fail Bits 6 and 7 = Spares <1> Common Alarm 2 Bit 0 = M&C processor fault. 1 = Fail Bit 1 = U IO card present. 1 = Present, reserved in RCS10/10L mode Bit 2 = IF card present. 1 = Present Bits 3 - 7 = Spares <1> Latched Alarm 1 Bit 0 = Receive processor fault Alarm. 1 = Fail Bit 1 = Carrier Loss 1 = Fail Bit 2 = Multiframe Sync Loss 1 = Fail Bit 3 = Frame Sync Loss 1 = Fail Bit 4 = IBS BER Alarm 1 = Fail Bit 5 = Satellite AIS 1 = Fail Bit 6 = Rx Data Activity. 1 = Fail Bit 7 = Rx AGC Level (Not Latched). <1> Latched Alarm 2 Bit 0 = Buffer underflow. 1 = Fail Bit 1 = Buffer overflow. 1 = Fail Bit 2 = Buffer under 10%. 1 = Fail Bit 3 = Buffer over 90%. 1 = Fail Bit 4 = RS Decoder Lock Fault. 1 = Fail Bit 5 = RS De-Interleaver Fault. 1 = Fail Bit 6 = RS Decoder Uncorrectable Word. 1 = Fail Bit 7 = Summary Fault. 1 = Fail <1> Latched Alarm 3 Bit 0 = IF synthesizer lock detect Fault. 1 = Fail Bit 1 = Rx Oversample PLL lock detect. 1 = Fail Bit 2 = Buffer clock PLL lock detect. 1 = Fail Bit 3 = Viterbi decoder lock (Not Latched) Bit 4 = Sequential decoder lock (Not Latched) Bit 5 = Rx 2047 test pattern lock (Not Latched) Bit 6 = External reference PLL lock (Not Latched) Bit 7 = IDR 96 PLL Lock. 1 = Fail <1> Latched Common Alarm 1 Bit 0 = -12V alarm. 1 = Fail Bit 1 = +12V alarm. 1 = Fail Bit 2 = +5V alarm. 1 = Fail Bit 3 = Reserved 4-82 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Bit 4 = Battery. 1 = Fail Bit 5 = RAM and ROM alarm flag. 1 = Fail Bits 6 and 7 = Spares <1> Latched Common Alarm 2 Bit 0 = M&C processor fault 1 = Fail Bit 1 = U IO card present alarm 1 = Fail, reserved in RCS10/10L mode Bit 2 = IF card present alarm 1 = Fail Bits 3 - 7 = Spares <1> Backward Alarm Bit 0 = Backward Alarm 1 IDR and IBS Bit 1 = Backward Alarm 2 IDR only Bit 2 = Backward Alarm 3 IDR only Bit 3 = Backward Alarm 4 IDR only Bits 4 - 7 = Reserved 0 = No, 1 = Yes <4> Error Counter Binary value <4> Test 2047 Error Counter Binary value <2> Raw BER Mantissa Bytes 1 - 2 = Binary value Raw BER 896 = 8.96 <2> Corrected BER Mantissa Bytes 1 - 2 = Binary value corrected BER <2> EbNo Binary value, 1 decimal point implied 700 = 7.00 <4> Offset Frequency Binary value, 1 Hz steps <2> Test 2047 BER Mantissa Bytes 1 - 2 = Binary value test 2047 BER <1> Raw BER Exponent Byte 3 = Binary value exponent <1> Corrected BER Exponent Byte 3 = Binary value exponent <1> Test 2047 BER Exponent Byte 3 = Binary value exponent <1> Offset Frequency Sign If <> 0, ’-’ offset <1> BER/EbNo Status Bit 0 = Raw BER and corrected BER status. 1 = Valid Bit 1 = Test 2047 BER status. 1 = Valid Bits 2 - 3 = EbNo status, 0 = EbNo is invalid, 1 = EbNo is valid, 2 = EbNo is smaller than indicated, value, 3 = EbNo is greater than indicated value Bit 4 = BER Counter Overflow. 1 = Overflow Condition Bit 5 = Test 2047 BER Counter Overflow 1 = Overflow Condition Bits 6 – 7 = Reserved <1> Buffer Percent Full Binary value representing % buffer full, 0 - 100 in 1% steps <1> Input Level Binary value in 1 dB steps TM051 - Rev. 5.8 4-83 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem <1> Insert Status Fault Bit 0 = Frame lock fault. 1 = Fail Bit 1 = Multiframe lock fault. Valid in E1 PCM30 and PCM30C. 1 = Fail Bit 2 = CRC lock fault. Valid in T1ESF, and E1 CRC enabled. 1 = Fail Bit 3 = T1 yellow alarm received. 1 = Received Bit 4 = E1 FAS alarm received. 1 = Received Bit 5 = E1 MFAS alarm received. Not valid in FAS mode. 1 = Received Bit 6 = E1 CRC alarm received. 1 = Received Bit 7 = CRC calculation error. 1 = Fail <1> Online Flag 0 = Offline, 1 = Online <1> Loss Flag 1 = Loss of IDI Signal, DMD15 <1> Alarm 5 Bit 0 = Trellis Decoder Lock. 1 = Lock Bit 1 = FM DSP Lock. 1 = Lock Bit 2 = T1 signaling fault. 1 = Fail Bit 3 = Turbo Codec Lock Fault. 1 = Fail Bits 4 – 7 = Spares <1> Latched Alarm 4 Bit 0 = Buffer clock activity detect. (Not Latched) Bit 1 = External BNC activity detect. (Not Latched), reserved in RCS10/10L mode Bit 2 = Rx satellite clock activity detect. 1 = Fail Bit 3 = Insert clock activity detect. 1 = Fail Bit 4 = External reference PLL activity. (Not Latched), reserved in RCS10/10L mode Bit 5 = High Stability reference PLL activity. (Not Latched), reserved in RCS10/10L mode Bit 6 = Rx clock fallback. (Not Latched) Bit 7 = Eb/No Threshold Fault. (Not Latched) <4> Symbol Rate Binary value, 1 sps steps <77> Reserved Reserved Opcode: <240Ch> Query a Demodulator’s Status Query Response 0 = Front Panel. 1 = Terminal, 2 = Computer <1> Control Mode <1> Revision Number Decimal point implied <1> Alarm 1 Bit 0 = Receive processor fault. 1 = Fail Bit 1 = Carrier Loss. 0 = pass. 1 = Fail Bit 2 = Multiframe Sync Loss 0 = pass. 1 = Fail Bit 3 = Frame Sync Loss 0 = pass. 1 = Fail Bit 4 = IBS BER Alarm 0 = pass. 1 = Fail Bit 5 = Satellite AIS 0 = pass. 1 = Fail Bit 6 = Rx Data Activity. 1 = Activity Bit 7 = RX AGC Level. 0 = Pass, 1 = Fail <1> Alarm 2 Bit 0 = Buffer underflow. 0 = OK. 1 = Underflow Bit 1 = Buffer overflow. 0 = OK. 1 = Overflow Bit 2 = Buffer under 10%. 1 = Under 10% Bit 3 = Buffer over 90%. 1 = Over 90% 4-84 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Bit 4 = RS Decoder Lock Fault. 1 = Fail Bit 5 = RS De-Interleaver Fault. 1 = Fail Bit 6 = RS Decoder Uncorrectable Word. 1 = Fail Bit 7 = Summary Fault. 1 = Fail <1> Alarm 3 Bit 0 = IF synthesizer lock detect. 1 = Lock Bit 1 = Rx Oversample PLL lock detect. 1 = Lock Bit 2 = Buffer clock PLL lock detect. 1 = Lock Bit 3 = Viterbi decoder lock. 1 = Lock Bit 4 = Sequential decoder lock. 1 = Lock Bit 5 = Rx 2047 test pattern lock. 1 = Lock Bit 6 = External reference PLL lock. 1 = Lock Bit 7 = IDR 96K PLL Lock. 1 = Lock <1> Alarm 4 Bit 0 = Buffer clock activity detect. 1 = Activity Bit 1 = External BNC activity detect. 1 = Activity, reserved in RCS10/10L mode Bit 2 = Rx satellite clock activity detect. 1 = Activity Bit 3 = Insert clock activity detect. 1 = Activity Bit 4 = External reference PLL activity. 1 = Activity, reserved in RCS10/10L mode Bit 5 = High Stability reference PLL activity. 1 = Activity, reserved in RCS10/10L mode Bit 6 = Rx clock fallback. 1 = Fail Bit 7 = Eb/No Threshold, 1 = Fail <1> Common Alarm 1 Bit 0 = -12V alarm. 1 = Fail Bit 1 = +12V alarm. 1 = Fail Bit 2 = +5V alarm. 1 = Fail Bit 3 = Reserved Bit 4 = Battery. 1 = Fail Bit 5 = RAM and ROM alarm flag. 1 = Fail Bits 6 and 7 = Spares <1> Common Alarm 2 Bit 0 = M&C processor fault. 1 = Fail Bit 1 = U IO card present. 1 = Present, reserved in RCS10/10L mode Bit 2 = IF card present. 1 = Present Bits 3 - 7 = Spares <1> Latched Alarm 1 Bit 0 = Receive processor fault Alarm. 1 = Fail Bit 1 = Carrier Loss 1 = Fail Bit 2 = Multiframe Sync Loss 1 = Fail Bit 3 = Frame Sync Loss 1 = Fail Bit 4 = IBS BER Alarm 1 = Fail Bit 5 = Satellite AIS 1 = Fail Bit 6 = Rx Data Activity. 1 = Fail Bit 7 = Rx AGC Level (Not Latched). <1> Latched Alarm 2 Bit 0 = Buffer underflow. 1 = Fail Bit 1 = Buffer overflow. 1 = Fail Bit 2 = Buffer under 10%. 1 = Fail Bit 3 = Buffer over 90%. 1 = Fail TM051 - Rev. 5.8 4-85 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem Bit 4 = RS Decoder Lock Fault. 1 = Fail Bit 5 = RS De-Interleaver Fault. 1 = Fail Bit 6 = RS Decoder Uncorrectable Word. 1 = Fail Bit 7 = Summary Fault. 1 = Fail <1> Latched Alarm 3 Bit 0 = IF synthesizer lock detect Fault. 1 = Fail Bit 1 = Rx Oversample PLL lock detect. 1 = Fail Bit 2 = Buffer clock PLL lock detect. 1 = Fail Bit 3 = Viterbi decoder lock (Not Latched) Bit 4 = Sequential decoder lock (Not Latched) Bit 5 = Rx 2047 test pattern lock (Not Latched) Bit 6 = External reference PLL lock (Not Latched) Bit 7 = IDR 96 PLL Lock. 1 = Fail <1> Latched Common Alarm 1 Bit 0 = -12V alarm. 1 = Fail Bit 1 = +12V alarm. 1 = Fail Bit 2 = +5V alarm. 1 = Fail Bit 3 = Reserved Bit 4 = Battery. 1 = Fail Bit 5 = RAM and ROM alarm flag. 1 = Fail Bits 6 and 7 = Spares <1> Latched Common Alarm 2 Bit 0 = M&C processor fault 1 = Fail Bit 1 = U IO card present alarm 1 = Fail, reserved in RCS10/10L mode Bit 2 = IF card present alarm 1 = Fail Bits 3 - 7 = Spares <1> Backward Alarm Bit 0 = Backward Alarm 1 IDR and IBS Bit 1 = Backward Alarm 2 IDR only Bit 2 = Backward Alarm 3 IDR only Bit 3 = Backward Alarm 4 IDR only Bits 4 - 7 = Reserved 0 = No, 1 = Yes <4> Error Counter Binary value <4> Test 2047 Error Counter Binary value <2> Raw BER Mantissa Bytes 1 - 2 = Binary value Raw BER 896 = 8.96 <2> Corrected BER Mantissa Bytes 1 - 2 = Binary value corrected BER <2> EbNo Binary value, 1 decimal point implied 700 = 7.00 <4> Offset Frequency Binary value, 1 Hz steps <2> Test 2047 BER Mantissa Bytes 1 - 2 = Binary value test 2047 BER <1> Raw BER Exponent Byte 3 = Binary value exponent <1> Corrected BER Exponent Byte 3 = Binary value exponent <1> Test 2047 BER Byte 3 = Binary value exponent 4-86 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Exponent <1> Offset Frequency Sign If <> 0, ’-’ offset <1> BER/EbNo Status Bit 0 = Raw BER and corrected BER status. 1 = Valid Bit 1 = Test 2047 BER status. 1 = Valid Bits 2 - 3 = EbNo status, 0 = EbNo is invalid, 1 = EbNo is valid, 2 = EbNo is smaller than indicated, value, 3 = EbNo is greater than indicated value Bit 4 = BER Counter Overflow. 1 = Overflow Condition Bit 5 = Test 2047 BER Counter Overflow 1 = Overflow Condition Bits 6 – 7 = Reserved <1> Buffer Percent Full Binary value representing % buffer full, 0 - 100 in 1% steps <1> Input Level Binary value in 1 dB steps <1> Insert Status Fault Bit 0 = Frame lock fault. 1 = Fail Bit 1 = Multiframe lock fault. Valid in E1 PCM30 and PCM30C. 1 = Fail Bit 2 = CRC lock fault. Valid in T1ESF, and E1 CRC enabled. 1 = Fail Bit 3 = T1 yellow alarm received. 1 = Received Bit 4 = E1 FAS alarm received. 1 = Received Bit 5 = E1 MFAS alarm received. Not valid in FAS mode. 1 = Received Bit 6 = E1 CRC alarm received. 1 = Received Bit 7 = CRC calculation error. 1 = Fail <1> Online Flag 0 = Offline, 1 = Online <1> Loss Flag 1 = Loss of IDI Signal, DMD15 <1> Alarm 5 Bit 0 = Trellis Decoder Lock. 1 = Lock Bit 1 = FM DSP Lock. 1 = Lock Bit 2 = T1 signaling fault. 1 = Fail Bit 3 = Turbo Codec Lock Fault. 1 = Fail Bits 4 – 7 = Spares <1> Latched Alarm 4 TM051 - Rev. 5.8 Bit 0 = Buffer clock activity detect. (Not Latched) Bit 1 = External BNC activity detect. (Not Latched), reserved in RCS10/10L mode Bit 2 = Rx satellite clock activity detect. 1 = Fail Bit 3 = Insert clock activity detect. 1 = Fail Bit 4 = External reference PLL activity. (Not Latched), reserved in RCS10/10L mode Bit 5 = High Stability reference PLL activity. (Not Latched), reserved in RCS10/10L mode 4-87 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem reserved in RCS10/10L mode Bit 6 = Rx clock fallback. (Not Latched) Bit 7 = Eb/No Threshold Fault. (Not Latched) <4> <77> Symbol Rate Binary value, 1 sps steps Reserved Reserved Opcode: <2406h> Query a demodulator’s latched alarms Query Response Bit 0 = Receive processor fault Alarm. 1 = Fail <1> Latched Alarm 1 Bit 1 = Carrier Loss 1 = Fail Bit 2 = Multiframe Sync Loss 1 = Fail Bit 3 = Frame Sync Loss 1 = Fail Bit 4 = IBS BER Alarm 1 = Fail Bit 5 = Satellite AIS 1 = Fail Bit 6 = Rx Data Activity. 1 = Fail Bit 7 = Rx AGC Level (Not Latched). <1> Latched Alarm 2 Bit 0 = Buffer underflow. 1 = Fail Bit 1 = Buffer overflow. 1 = Fail Bit 2 = Buffer under 10%. 1 = Fail Bit 3 = Buffer over 90%. 1 = Fail Bit 4 = RS Decoder Lock Fault. 1 = Fail Bit 5 = RS De-Interleaver Fault. 1 = Fail Bit 6 = RS Decoder Uncorrectable Word. 1 = Fail Bit 7 = Summary Fault. 1 = Fail <1> Latched Alarm 3 Bit 0 = IF synthesizer lock detect Fault. 1 = Fail Bit 1 = Rx Oversample PLL lock detect. 1 = Fail Bit 2 = Buffer clock PLL lock detect. 1 = Fail Bit 3 = Viterbi decoder lock (Not Latched) Bit 4 = Sequential decoder lock (Not Latched) Bit 5 = Rx 2047 test pattern lock (Not Latched) Bit 6 = External reference PLL lock (Not Latched) Bit 7 = IDR 96 PLL Lock. 1 = Fail <1> Latched Common Alarm 1 Bit 0 = -12V alarm. 1 = Fail Bit 1 = +12V alarm. 1 = Fail Bit 2 = +5V alarm. 1 = Fail Bit 3 = Reserved Bit 4 = Battery. 1 = Fail Bit 5 = RAM and ROM alarm flag. 1 = Fail Bits 6 and 7 = Spares <1> Latched Common Alarm 2 Bit 0 = M&C processor fault 1 = Fail Bit 1 = U IO card present alarm 1 = Fail, reserved in RCS10/10L mode Bit 2 = IF card present alarm 1 = Fail Bits 3 - 7 = Spares <1> Latched Alarm 4 Bit 0 = Buffer clock activity detect. (Not Latched) Bit 1 = External BNC activity detect. (Not Latched), reserved in RCS10/10L mode Bit 2 = Rx satellite clock activity detect. 1 = Fail Bit 3 = Insert clock activity detect. 1 = Fail Bit 4 = External reference PLL activity. (Not Latched), reserved 4-88 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces in RCS10/10L mode Bit 5 = High Stability reference PLL activity. (Not Latched), reserved in RCS10/10L mode Bit 6 = Rx clock fallback. (Not Latched) Bit 7 = Eb/No Threshold Fault. (Not Latched) Opcode: <2409h> Query a demodulator’s current alarms Query Response Bit 0 = Receive processor fault. 1 = Fail <1> Alarm 1 Bit 1 = Carrier Loss. 0 = pass. 1 = Fail Bit 2 = Multiframe Sync Loss 0 = pass. 1 = Fail Bit 3 = Frame Sync Loss 0 = pass. 1 = Fail Bit 4 = IBS BER Alarm 0 = pass. 1 = Fail Bit 5 = Satellite AIS 0 = pass. 1 = Fail Bit 6 = Rx Data Activity. 1 = Activity Bit 7 = RX AGC Level. 0 = Pass, 1 = Fail <1> Alarm 2 Bit 0 = Buffer underflow. 0 = OK. 1 = Underflow Bit 1 = Buffer overflow. 0 = OK. 1 = Overflow Bit 2 = Buffer under 10%. 1 = Under 10% Bit 3 = Buffer over 90%. 1 = Over 90% Bit 4 = RS Decoder Lock Fault. 1 = Fail Bit 5 = RS De-Interleaver Fault. 1 = Fail Bit 6 = RS Decoder Uncorrectable Word. 1 = Fail Bit 7 = Summary Fault. 1 = Fail <1> Alarm 3 Bit 0 = IF synthesizer lock detect. 1 = Lock Bit 1 = Rx Oversample PLL lock detect. 1 = Lock Bit 2 = Buffer clock PLL lock detect. 1 = Lock Bit 3 = Viterbi decoder lock. 1 = Lock Bit 4 = Sequential decoder lock. 1 = Lock Bit 5 = Rx 2047 test pattern lock. 1 = Lock Bit 6 = External reference PLL lock. 1 = Lock Bit 7 = IDR 96K PLL Lock. 1 = Lock <1> Alarm 4 Bit 0 = Buffer clock activity detect. 1 = Activity Bit 1 = External BNC activity detect. 1 = Activity, reserved in RCS10/10L mode Bit 2 = Rx satellite clock activity detect. 1 = Activity Bit 3 = Insert clock activity detect. 1 = Activity Bit 4 = External reference PLL activity. 1 = Activity, reserved in RCS10/10L mode Bit 5 = High Stability reference PLL activity. 1 = Activity, reserved in RCS10/10L mode Bit 6 = Rx clock fallback. 1 = Fail Bit 7 = Eb/No Threshold, 1 = Fail <1> Insert Status Fault Bit 0 = Frame lock fault. 1 = Fail Bit 1 = Multiframe lock fault. Valid in E1 PCM30 and PCM30C. 1 = Fail Bit 2 = CRC lock fault. Valid in T1ESF, and E1 CRC enabled. 1 = Fail Bit 3 = T1 yellow alarm received. 1 = Received TM051 - Rev. 5.8 4-89 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem Bit 4 = E1 FAS alarm received. 1 = Received Bit 5 = E1 MFAS alarm received. Not valid in FAS mode. 1 = Received Bit 6 = E1 CRC alarm received. 1 = Received Bit 7 = CRC calculation error. 1 = Fail <1> Common Alarm 1 Bit 0 = -12V alarm. 1 = Fail Bit 1 = +12V alarm. 1 = Fail Bit 2 = +5V alarm. 1 = Fail Bit 3 = Reserved Bit 4 = Battery. 1 = Fail Bit 5 = RAM and ROM alarm flag. 1 = Fail Bits 6 and 7 = Spares <1> Common Alarm 2 Bit 0 = M&C processor fault. 1 = Fail Bit 1 = U IO card present. 1 = Present, reserved in RCS10/10L mode Bit 2 = IF card present. 1 = Present Bits 3 - 7 = Spares Opcode: <2A00h> Command a demodulator’s configuration 0 = Closed Net. 1 = IDR, 2 = IBS, 3 = D&I <1> Mode <4> Frequency <2> Sweep Delay Selects the IF frequency in Hz. The range is 50 MHz to 180 MHz for the 70/140 MHz type modems and 950 MHz to 1750 MHz for the L-Band Modems. Unsigned 0.0 – 900.0 Binary value, 0.1 second steps 0.1 – 299.9 <4> Data Rate Binary value, 1 bps steps <1> Sweep Boundary Sweep limits. Max of ± 32 kHz in kHz steps 1 - 32 <1> Input Level Limit Lower level limit, binary value, 1 dB steps. Reserved <2> Strap Code Binary value <1> Filter Mask 0 = INTELSAT, 1 = EUTELSAT, 2 = CLOSED NET1 <1> Demodulation Type 0 = QPSK, 1 = BPSK, 2 = 8PSK, 3 = 16QAM, 4 = OQPSK <1> Convolutional Decoder 0 = None, 1 = Viterbi 1/2 Rate, 2 = Viterbi 2/3 Rate, 3 = Viterbi 3/4 Rate, 4 = Viterbi 5/6 Rate, 5 = Viterbi 7/8 Rate, 6 = Viterbi 8/9 Rate, 7 = Sequential 1/2 Rate, 8 = Sequential 2/3 Rate, 9 = Sequential 3/4 Rate, 10 = Sequential 5/6 Rate, 11 = Sequential 7/8 Rate, 12 = Sequential 8/9 Rate, 13 = Trellis 1/2 Rate, 14 = Trellis 2/3 Rate, 15 = Trellis 3/4 Rate, 16 = Trellis 5/6 Rate, 17 = Trellis 7/8 Rate, 18 = Trellis 8/9 Rate, 19 = SEQ 3/4 Rate, 20 = TPC .793 2D, 21 = TPC .495 3D, 22 = TPC .325 3D Reed Solomon 0 = Disable, 1 = Enable Differential Decoder 0 = Off, 1 = On, 2 = EF Mode* *Available in uncoded QPSK modulation for compatibility. Descrambler Control 0 = Disable, 1 = Enable <1> <1> <1> 4-90 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces <1> Descrambler Type 0 = None, 1 = IBS Scrm., 2 = V35_IESS, 3 = V35_CCITT, 4 = V35_EFDATA, 5 = V35_FAIRCHILD, 6 = OM73, 7 = RS Descrambler, 8 = V.35 EF RS Descrambler, 9 = TPC Scrambler Spectrum 0 = Normal, 1 = Inverted Buffer Size Msec Indicates buffer size in msecs. 0 through 32 Buffer Clock 0 = SCTE, 1 = SCT, 2 = EXT EXC, 3 = RX SAT Buffer Clock Polarity 0 = Normal, 1 = Inverted Insert Mode 0 = Disabled, 1 = T1-D4, 2 = T1-ESF, 3 = PCM-30, 4 = PCM30C, 5 = PCM-31, 6 = PCM-31C, 7 = SLC-96, 8 = T1 D4 S, 9 = T1 ESF S T1E1 Frame Source 0 = Internal, 1 = External Insert Map Timeslots to insert organized by satellite channel Framing 0 = No framing, 1 = 96K, 2 = 1/15, 3 = EF AUPC 1/15 Operating Mode 0 = Stop, 1 = 2047 test Map Summary To Backward Alarm 0 = None, 1 = BK1, 2 = BK2, 3 = BK1 & 2, 4 = BK3, 5 = BK1 & 3, 6 = BK2 & 3, 7 = BK1, 2 & 3, 8 = BK4, 9 = BK1 & 4, 10 = BK2 & 4, 11 = BK1, 2 & 4, 12 = BK3 & 4, 13 = BK1, 3 & 4, 14 = BK2, 3 & 4, 15 = BK1, 2, 3 & 4 Forced Alarms 0 = None, 1 = Send the Alarm Bits 0 – 7 = Spares Alarm 1 Mask Bit 0 = Rx proc Bit 1 = Carrier Loss Bit 2 = Multiframe Sync Loss Bit 3 = Frame Sync Loss Bit 4 = IBS BER Alarm Bit 5 = Satellite AIS Bit 6 = Rx Data Activity Bit 7 = Rx AGC Level 0 = Mask, 1 = Allow <1> <1> <1> <1> <1> <1> <30> <1> <1> <1> <1> <1> <1> Alarm 2 Mask Bit 0 = Buffer underflow Bit 1 = Buffer overflow Bit 2 = Buffer under 10% Bit 3 = Buffer over 90% Bit 4 = RS Decoder Lock Fault Bit 5 = RS De-Interleaver Fault Bit 6 = RS Decoder Uncorrectable Word Bit 7 = Summary Fault 0 = Mask, 1 = Allow <1> Alarm 3 Mask TM051 - Rev. 5.8 Bit 0 = IF synthesizer lock detect 4-91 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem Bit 1 = Rx Oversample PLL lock detect Bit 2 = Buffer clock PLL lock detect Bit 3 = Viterbi decoder lock Bit 4 = Sequential decoder lock Bit 5 = Rx 2047 test pattern lock Bit 6 = External reference PLL lock Bit 7 = IDR 96K PLL Lock 0 = Mask, 1 = Allow <1> Alarm 4 Mask Bit 0 = Buffer clock activity detect Bit 1 = External BNC activity detect, reserved in RCS10/10L mode Bit 2 = Rx satellite clock activity detect Bit 3 = Insert clock activity detect Bit 4 = External reference PLL activity, reserved in RCS10/10L mode Bit 5 = High Stability reference PLL activity, reserved in RCS10/10L mode Bit 6 = Rx clock fallback Bit 7 = Eb/No Threshold 0 = Mask, 1 = Allow Common Alarm 1 Mask Bit 0 = -12V alarm Bit 1 = +12V alarm Bit 2 = +5V alarm Bit 3 = Reserved Bit 4 = Battery Bit 5 = RAM and ROM alarm flag Bits 6 and 7 = Spares 0 = Mask, 1 = Allow Common Alarm 2 Mask Bit 0 = M&C processor fault Bit 1 = U IO card present, reserved in RCS10/10L mode Bit 2 = IF card present Bits 3 - 7 = Spares 0 = Mask, 1 = Allow ESC Channel 1 Volume Binary value, valid in IDR only, +10 dBm to –20 dBm (two’s compliment) ESC Channel 2 Volume Binary value, valid in IDR only, +10 dBm to –20 dBm (two’s compliment) BER Exponent 6 through 9 for Viterbi, 5 through 7 for Sequential Rx Circuit ID 11 ASCII characters Rx Terrestrial Loopback 0 = Disabled, 1 = Enabled Rx Baseband Loopback 0 = Disabled, 1 = Enabled Rx IF Loopback 0 = Disabled, 1 = Enabled Rx Interface Type 0 = G703-B-T1-AMI, 1 = G703-B-T1_B8ZS, 2 = G703-B-E1, 3 = G703-B-T2, 4 = G703-U-E1, 5 = G703-U-T2, 6 = G703-U-E2, <1> <1> <1> <1> <1> <11> <1> <1> <1> <1> 4-92 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces 7 = RS-422, 8 = V.35, 9 = RS-232 <1> Insert Status Mask Bit 0 = Frame lock Bit 1 = Multiframe lock. Valid in E1 PCM30 and PCM30C Bit 2 = CRC lock. Valid in T1ESF, and E1 CRC enabled Bit 3 = T1 yellow alarm received Bit 4 = E1 FAS alarm received Bit 5 = E1 MFAS alarm received. Not valid in FAS mode Bit 6 = E1 CRC alarm received Bit 7 = CRC calculation error 0 = Mask, 1 = Allow Rx Reed Solomon N Code 2 - 255 Reed-Solomon code word length Rx Reed Solomon K Code 1 - 254 Reed-Solomon message length Rx Reed Solomon Depth 4 or 8 External Clock Source 0 = BNC EXC, 1 = Balanced EXC, 2 = IDI, 3 = SYS [RCS10 Only] Data Invert 0 = None, 1 = Terrestrial, 2 = Baseband 3 = Terrestrial and Baseband Alarm 5 Masks Bit 0 = Trellis Decoder Lock Bit 1 = FM DSP Lock Mask Bit 2 = T1 signaling fault Bit 3 = Turbo Codec Lock Fault Bits 4 - 7 = Spares 0 = Mask, 1 = Allow BPSK Symbol Pairing 0 = Normal, 1 = Swapped ES Mode 0 = Normal, 1 = Enhanced ES Type 0 = RS-232, 1 = RS-485 ES Baud 0 = 150. 1 = 300, 2 = 600, 3 = 1200, 4 = 2400, 5 = 4800, 6 = 9600 ES Data Bits 0 = 7 Bits. 1 = 8 Bits IDR Overhead Type 0 = 32K Voice. 1 = 64K Data FM Orderwire Mode 0 = Disable, 1 = Enable, 2 = FM Only Time Mark Transfer Pattern Length Unsigned Binary (4 to 16) Inclusively Eb/No Threshold <1> <1> <1> <1> <1> <1> <1> <1> <1> <1> <1> <1> <1> <1> <1> <2> Reacquisition Sweep Boundary Unsigned Binary Value, 0-99, Implied Decimal Point 0.0 through 9.9 dB Unsigned binary value Sweep limits. Max of +/- 32000 Hz in 1 Hz steps 0 – 32000 <37> Reserved Reserved TM051 - Rev. 5.8 4-93 User Interfaces <1> TPC Deinterleaver DMD15/DMD15L IBS/IDR Satellite Modem 0=Disable, 1=Enable Opcode: <2A01h> Command a demodulator’s frequency <4> Frequency Selects the IF frequency in Hz. The range is 50 MHz to 180 MHz for the 70/140 MHz type modems and 950 MHz to 1750 MHz for the L-Band Modems. Opcode: <2A02h> Command a demodulator’s data rate <4> Data Rate Binary value, 1 bps steps Opcode: <2A03h> Command a demodulator’s strap code <2> Strap Code Binary value Opcode: <2A04h> Command a demodulator’s sweep boundary <1> Sweep Boundary Sweep limits. Max of 32 kHz in kHz steps 1 - 32 Opcode: <2A05h> Command a demodulator’s sweep delay <2> Sweep Delay Binary value decimal implied, 0.1 second steps 0.1 – 900.0 Opcode: <2A07h> Command a demodulator’s demodulation type <1> Demodulation Type 0 = QPSK, 1 = BPSK, 2 = 8PSK, 3 = 16QAM, 4 = OQPSK Opcode: <2A08h> Command a demodulator’s convolutional decoder <1> Convolutional 0 = None, 1 = Viterbi 1/2 Rate, 2 = Viterbi 2/3 Rate, 3 = Viterbi Decoder 3/4 Rate, 4 = Viterbi 5/6 Rate, 5 = Viterbi 7/8 Rate, 6 = Viterbi 8/9 Rate, 7 = Sequential 1/2 Rate, 8 = Sequential 2/3 Rate, 9 = Sequential 3/4 Rate, 10 = Sequential 5/6 Rate, 11 = Sequential 7/8 Rate, 12 = Sequential 8/9 Rate, 13 = Trellis 1/2 Rate, 14 = Trellis 2/3 Rate, 15 = Trellis 3/4 Rate, 16 = Trellis 5/6 Rate, 17 = Trellis 7/8 Rate, 18 = Trellis 8/9 Rate, 19 = SEQ 3/4 Rate, 20 = TPC .793 2D, 21 = TPC .495 3D, 22 = TPC .325 3D Opcode: <2A09h> Command a demodulator’s differential decoder <1> Differential Decoder 0 = Off, 1 = On, 2 = EF Mode* *Available in uncoded QPSK modulation for compatibility. Opcode: <2A0Ah> Command a demodulator’s Reed Solomon <1> Reed Solomon 0 = Disable, 1 = Enable Opcode: <2A0Bh> Command a demodulator’s mode <1> Mode 0 = Closed Net. 1 = IDR, 2 = IBS, 3 = D&I Opcode: <2A0Ch> Command a demodulator’s filter mask <1> Filter Mask 0 = INTELSAT, 1 = EUTELSAT, 2 = CLOSED NET1 Opcode: <2A0Dh> Command a demodulator’s descrambler control <1> Descrambler Control 0 = Disable, 1 = Enable Opcode: <2A0Eh> Command a demodulator’s descrambler type <1> Descrambler Type 0 = None, 1 = IBS Scrm., 2 = V35_IESS, 3 = V35_CCITT, 4 = V35_EFDATA, 5 = V35_FAIRCHILD, 6 = OM73, 7 = RS Descrambler, 8 = V.35 EF RS Descrambler, 9 = TPC Scrambler 4-94 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Opcode: <2A0Fh> Command a demodulator’s spectrum <1> Spectrum 0 = Normal, 1 = Inverted Opcode: <2A10h> Command a demodulator’s buffer size <1> Buffer Size Msec Indicates buffer size in msecs. 0 through 32 Opcode: <2A11h> Command a demodulator’s buffer clock <1> Buffer Clock 0 = SCTE, 1 = SCT, 2 = EXT EXC, 3 = RX SAT Opcode: <2A12h> Command a demodulator’s buffer clock polarity <1> Buffer Clock Polarity 0 = Normal, 1 = Inverted Opcode: <2A13h> Command a demodulator’s insert mode <1> Insert Mode 0 = Disabled, 1 = T1-D4, 2 = T1-ESF, 3 = PCM-30, 4 = PCM30C, 5 = PCM-31, 6 = PCM-31C, 7 = SLC-96, 8 = T1 D4 S, 9 = T1 ESF S Opcode: <2A15h> Command a demodulator’s T1E1 frame source <1> T1E1 Frame Source 0 = Internal, 1 = External Opcode: <2A16h> Command a demodulator’s framing <1> Framing 0 = No framing, 1 = 96K, 2 = 1/15, 3 = EF AUPC 1/15 Opcode: <2A17h> Command a demodulator’s operating mode <1> Operating Mode 0 = Stop, 1 = 2047 test Opcode: <2A18h> Command map summary to backward alarm <1> Map Summary To 0 = None, 1 = BK1, 2 = BK2, 3 = BK1 & 2, 4 = BK3, 5 = BK1 & Backward Alarm 3, 6 = BK2 & 3, 7 = BK1, 2 & 3, 8 = BK4, 9 = BK1 & 4, 10 = BK2 & 4, 11 = BK1, 2 & 4, 12 = BK3 & 4, 13 = BK1, 3 & 4, 14 = BK2, 3 & 4, 15 = BK1, 2, 3 & 4 Opcode: <2A1Ah> Command a demodulator’s BER exponent <1> BER Exponent 6 through 9 for Viterbi, 5 through 7 for Sequential Opcode: <2A1Bh> Command a demodulator’s circuit ID 11 ASCII characters <11> Rx Circuit ID Opcode: <2A1Ch> Command a demodulator’s terrestrial loopback <1> Rx Terrestrial 0 = Disabled, 1 = Enabled Loopback Opcode: <2A1Dh> Command a demodulator’s baseband loopback <1> Rx Baseband 0 = Disabled, 1 = Enabled Loopback Opcode: <2A1Eh> Command a demodulator’s IF loopback <1> Rx IF Loopback 0 = Disabled, 1 = Enabled Opcode: <2A1Fh> Command a demodulator’s interface type <1> Rx Interface Type 0 = G703-B-T1-AMI, 1 = G703-B-T1_B8ZS, 2 = G703-B-E1, 3 = G703-B-T2, 4 = G703-U-E1, 5 = G703-U-T2, 6 = G703-U-E2, 7 = RS-422, 8 = V.35, 9 = RS-232 Opcode: <2A20h> Command center buffer (No Parameters) TM051 - Rev. 5.8 4-95 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem Opcode: <2A21h> Command Data Invert <1> Data Invert 0 = None, 1 = Terrestrial, 2 = Baseband 3 = Terrestrial and Baseband Opcode: <2A22h> Command Force Demod Summary Alarms <1> Summary Alarm 0 = Do not force. 1 = Force Opcode: <2A23h> Command External EXC Source <1> External Clock Source 0 = BNC EXC, 1 = Balanced EXC, 2 = IDI, 3 = SYS [RCS10 Only] Opcode: <2A24h> Clear Latched Alarm 1 (No Data) Opcode: <2A25h> Clear Latched Alarm 2 (No Data) Opcode: <2A26h> Clear Latched Alarm 3 (No Data) Opcode: <2A2Eh> Clear Latched Alarm 4 (No Data) Opcode: <2A2Fh> Command a demodulator’s reacquisition sweep. <2> Reacquisition Sweep Unsigned Binary 0-32000 Opcode: <2A32h> Command a demodulator’s Reed Solomon N & K Codes & Interleaver Depth 2 - 255 Reed-Solomon code word length <1> Rx Reed Solomon N Code <1> <1> Rx Reed Solomon K Code Rx Reed Solomon Depth 1 - 254 Reed-Solomon message length 4 or 8 Reed Solomon Interleaver Depth Opcode: <2A33h> Command a demodulator’s time mark transfer <1> Time Mark Transfer Unsigned Binary (4 to 16) Inclusively Pattern Length 4.9.5.3 Modem Queries & Commands Opcode: <2403h> Query a modem's identification Query Response <1> Modem ID DMD15 Modulator = 20, DMD15 Demodulator = 21, DMD15 Modem = 22 Opcode: <2404h> Query a modem's control mode Query Response <1> Modem control mode 0 = Front panel. 1 = Terminal, 2 = Computer 4-96 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Opcode: <2407h> Query a modem's latched alarms Query Response Bit 0 = Transmit processor fault. 1 = Fail <1> Mod Latched Alarm 1 Bit 1 = Transmit output power level Fault. 1 = Fail Bit 2 = Transmit Oversample PLL lock Fault. 1 = Fail Bit 3 = Composite clock PLL lock Fault. 1 = Fail Bit 4 = IF synthesizer lock Fault. 1 = Fail Bit 5 = IDR 96 PLL Lock Fault. 1 = Fail Bit 6 = RS FIFO Fault. 1 = Fail Bit 7 = Mod Summary Fault. 1 = Fail <1> Demod Latched Alarm 1 Bit 0 = Receive processor fault Alarm. 1 = Fail Bit 1 = Carrier Loss 1 = Fail Bit 2 = Multiframe Sync Loss 1 = Fail Bit 3 = Frame Sync Loss 1 = Fail Bit 4 = IBS BER Alarm 1 = Fail Bit 5 = Satellite AIS 1 = Fail Bit 6 = Rx Data Activity. 1 = Fail Bit 7 = Rx AGC Level (Not Latched). <1> Demod Latched Alarm 2 Bit 0 = Buffer underflow. 1 = Fail Bit 1 = Buffer overflow. 1 = Fail Bit 2 = Buffer under 10%. 1 = Fail Bit 3 = Buffer over 90%. 1 = Fail Bit 4 = RS Decoder Lock Fault. 1 = Fail Bit 5 = RS De-Interleaver Fault. 1 = Fail Bit 6 = RS Decoder Uncorrectable Word. 1 = Fail Bit 7 = Summary Fault. 1 = Fail <1> Demod Latched Alarm 3 Bit 0 = IF synthesizer lock detect Fault. 1 = Fail Bit 1 = Rx Oversample PLL lock detect. 1 = Fail Bit 2 = Buffer clock PLL lock detect. 1 = Fail Bit 3 = Viterbi decoder lock (Not Latched) Bit 4 = Sequential decoder lock (Not Latched) Bit 5 = Rx 2047 test pattern lock (Not Latched) Bit 6 = External reference PLL lock (Not Latched) Bit 7 = IDR 96 PLL Lock. 1 = Fail <1> Latched Common Alarm 1 Bit 0 = -12V alarm. 1 = Fail Bit 1 = +12V alarm. 1 = Fail Bit 2 = +5V alarm. 1 = Fail Bit 3 = Reserved Bit 4 = Battery. 1 = Fail Bit 5 = RAM and ROM alarm flag. 1 = Fail Bits 6 and 7 = Spares <1> Latched Common Alarm 2 Bit 0 = M&C processor fault. 1 = Fail Bit 1 = U IO card present Fault. 1 = Fail, reserved in RCS10/10L mode Bit 2 = IF card present Fault. 1 = Fail Bits 3 - 7 = Spares <1> Demod Latched Alarm 4 Bit 0 = Buffer clock activity detect. (Not Latched) Bit 1 = External BNC activity detect. (Not Latched), reserved in RCS10/10L mode Bit 2 = Rx satellite clock activity detect. 1 = Fail Bit 3 = Insert clock activity detect. 1 = Fail Bit 4 = External reference PLL activity. (Not Latched), reserved TM051 - Rev. 5.8 4-97 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem in RCS10/10L mode Bit 5 = High Stability reference PLL activity. (Not Latched), reserved in RCS10/10L mode Bit 6 = Rx clock fallback. (Not Latched) Bit 7 = Eb/No Threshold Fault. (Not Latched) <1> Mod Lathed Alarm 2 Bit 0 = Terrestrial clock activity detect. 1 = Fail Bit 1 = Internal clock activity detect. 1 = Fail Bit 2 = Tx Sat clock activity detect. 1 = Fail Bit 3 = Tx data activity detect. 1 = Fail Bit 4 = Tx data AIS detect. 1 = Fail Bit 5 = Tx clock fallback. 1 = Fail Bits 6 & 7 = Spares <1> Latched Drop Status Bit 0 = Frame lock fault. 1 = Fail Bit 1 = Multiframe lock fault. 1 = Fail PCM30 and PCM30C. 1 = Fail Bit 2 = CRC lock fault. Valid in T1 ESF and E1, CRC enabled. 1 = Fail Bits 3-7 (Not latched)I Opcode: <240Ah> Query a modem’s current alarms Query Response Bit 0 = Transmit processor fault. 1 = Fail <1> Mod Alarm 1 Bit 1 = Transmit output power level. 1 = Fail Bit 2 = Transmit Oversample PLL lock. 1 = Lock Bit 3 = Composite clock PLL lock. 1 = Lock Bit 4 = IF synthesizer lock. 1 = Lock Bit 5 = IDR 96 PLL lock. 1 = Lock Bit 6 = RS FIFO fault. 1 = Fail Bit 7 = Mod Summary fault. 1 = Fail <1> Mod Alarm 2 Bit 0 = Terrestrial clock activity detect. 1 = Activity Bit 1 = Internal clock activity detect. 1 = Activity Bit 2 = Tx Sat clock activity detect. 1 = Activity Bit 3 = Tx data activity detect. 1 = Activity Bit 4 = Terrestrial AIS. Tx data AIS detect. 1 = AIS Fail Bit 5 = Tx clock fallback. 1 = Fail Bits 6 and 7 = Spares <1> Drop Status Fault Bit 0 = Frame lock fault. 1 = Fail Bit 1 = Multiframe lock Fault. Valid in E1 PCM30 and PCM30C. 1 = Fail Bit 2 = CRC lock fault. Valid in T1ESF, and E1 CRC enabled. 1 = Fail Bit 3 = T1 yellow alarm received. 1 = Received Bit 4 = E1 FAS alarm received. 1 = Received Bit 5 = E1 MFAS alarm received. Not valid in FAS mode. 1 = Received Bit 6 = E1 CRC alarm received. 1 = Received Bit 7 = CRC calculation error. 1 = Fail <1> Demod Alarm 1 Bit 0 = Receive processor fault. 1 = Fail Bit 1 = Carrier Loss. 0 = pass. 1 = Fail Bit 2 = Multiframe Sync Loss 0 = pass. 1 = Fail Bit 3 = Frame Sync Loss 0 = pass. 1 = Fail 4-98 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Bit 4 = IBS BER Alarm 0 = pass. 1 = Fail Bit 5 = Satellite AIS 0 = pass. 1 = Fail Bit 6 = Rx Data Activity. 1 = Activity Bit 7 = RX AGC Level. 0 = Pass, 1 = Fail <1> Demod Alarm 2 Bit 0 = Buffer underflow. 0 = OK. 1 = Underflow Bit 1 = Buffer overflow. 0 = OK. 1 = Overflow Bit 2 = Buffer under 10%. 1 = Under 10% Bit 3 = Buffer over 90%. 1 = Over 90% Bit 4 = RS Decoder Lock Fault. 1 = Fail Bit 5 = RS De-Interleaver Fault. 1 = Fail Bit 6 = RS Decoder Uncorrectable Word. 1 = Fail Bit 7 = Summary Fault. 1 = Fail <1> Demod Alarm 3 Bit 0 = IF synthesizer lock detect. 1 = Lock Bit 1 = Rx Oversample PLL lock detect. 1 = Lock Bit 2 = Buffer clock PLL lock detect. 1 = Lock Bit 3 = Viterbi decoder lock. 1 = Lock Bit 4 = Sequential decoder lock. 1 = Lock Bit 5 = Rx 2047 test pattern lock. 1 = Lock Bit 6 = External reference PLL lock. 1 = Lock Bit 7 = IDR 96K PLL Lock. 1 = Lock <1> Demod Alarm 4 Bit 0 = Buffer clock activity detect. 1 = Activity Bit 1 = External BNC activity detect. 1 = Activity, reserved in RCS10/10L mode Bit 2 = Rx satellite clock activity detect. 1 = Activity Bit 3 = Insert clock activity detect. 1 = Activity Bit 4 = External reference PLL activity. 1 = Activity, reserved in RCS10/10L mode Bit 5 = High Stability reference PLL activity. 1 = Activity, reserved in RCS10/10L mode Bit 6 = Rx clock fallback. 1 = Fail Bit 7 = Eb/No Threshold, 1 = Fail <1> Insert Status Fault Bit 0 = Frame lock fault. 1 = Fail Bit 1 = Multiframe lock fault. Valid in E1 PCM30 and PCM30C. 1 = Fail Bit 2 = CRC lock fault. Valid in T1ESF, and E1 CRC enabled. 1 = Fail Bit 3 = T1 yellow alarm received. 1 = Received Bit 4 = E1 FAS alarm received. 1 = Received Bit 5 = E1 MFAS alarm received. Not valid in FAS mode. 1 = Received Bit 6 = E1 CRC alarm received. 1 = Received Bit 7 = CRC calculation error. 1 = Fail <1> Common Alarm 1 Bit 0 = -12V alarm. 1 = Fail Bit 1 = +12V alarm. 1 = Fail Bit 2 = +5V alarm. 1 = Fail Bit 3 = Reserved Bit 4 = Battery. 1 = Fail Bit 5 = RAM and ROM alarm flag. 1 = Fail Bits 6 and 7 = Spares TM051 - Rev. 5.8 4-99 User Interfaces <1> Common Alarm 2 DMD15/DMD15L IBS/IDR Satellite Modem Bit 0 = M&C processor fault. 1 = Fail Bit 1 = U IO card present. 1 = Present, reserved in RCS10/10L mode Bit 2 = IF card present. 1 = Present Bits 3 - 7 = Spares Opcode: <240Dh> Query a modem’s Eb/No, BER, and Level Query Response Bytes 1 - 2 = Binary value Raw BER 896 = 8.96 <2> Raw BER Mantissa <2> Corrected BER Mantissa Bytes 1 - 2 = Binary value corrected BER <2> EbNo Binary value, 1 decimal point implied 700 = 7.00 <1> Raw BER Exponent Byte 3 = Binary value exponent <1> Corrected BER Exponent Byte 3 = Binary value exponent <1> BER/EbNo Status Bit 0 = Raw BER and corrected BER status. 1 = Valid Bit 1 = Test 2047 BER status. 1 = Valid Bits 2 - 3 = EbNo status, 0 = EbNo is invalid, 1 = EbNo is valid, 2 = EbNo is smaller than indicated, value, 3 = EbNo is greater than indicated value Bit 4 = BER Counter Overflow. 1 = Overflow Condition Bit 5 = Test 2047 BER Counter Overflow 1 = Overflow Condition Bits 6 – 7 = Reserved <1> Input Level Binary value in 1 dB steps Opcode: <240Eh> Query time <1> Hour Query Response 0 – 23 <1> Minute 0 – 59 <1> Second 0 – 59 Opcode: <240Fh> Query date Query Response <1> Year 0 - 99 <1> Month 0 - 11 <1> Day 0 – 30 Opcode: <2410h> Query time and date Query Response <1> Year 0 - 99 <1> Month 0 - 11 4-100 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem <1> Day 0 – 30 <1> Hour 0 – 23 <1> Minute 0 – 59 <1> Second 0 – 59 User Interfaces Opcode: <2411h> Query Modem Summary Faults Query Response 0 = Pass, 1 = Fail <1> Mod Summary Fault <1> Demod Summary Fault 0 = Pass, 1 = Fail Opcode: <2402h> Query a modem’s drop & insert map <1> Requested map 0 = Drop active map, 1 = Insert active map, 2 = Drop edit map, 3 = Insert edit map, 4 - 11 = User map #1 through #8, 12 - 19 = ROM maps #1 - #8 Query Response 0 = Drop active map, 1 = Insert active map, 2 = Drop edit map, <1> Requested map 3 = Insert edit map, 4 - 11 = User map #1 through #8, 12 - 19 = number ROM maps #1 - #8 <30> Requested map Opcode: <2C00h> Command drop and insert map copy 0 = Drop active map, 1 = Insert active map, 2 = Drop edit map, <1> From Map 3 = Insert edit map, 4 - 11 = User map #1 through #8, 12 - 19 = ROM maps #1 - #8 <1> To Map 0 = Drop active map. 1 = Insert active map, 2 = Drop edit map, 3 = Insert edit map, 4 - 11 = User map #1 through #8 Opcode: <2C01h> Command drop and insert map 0 = Drop active map, 1 = Insert active map, 2 = Drop edit map, <1> Map to Change 3 = Insert edit map, 4 - 11 = User map #1 through #8 <30> New map Opcode: <2C03h> Command clear latched alarms (No Parameters) Opcode: <2C04h> Command set time 0 – 23 <1> Hour <1> Minute 0 – 59 <1> Second 0 – 59 Opcode: <2C05h> Command set date 0 - 99 <1> Year <1> Month TM051 - Rev. 5.8 0 - 11 4-101 User Interfaces <1> Day DMD15/DMD15L IBS/IDR Satellite Modem 0 - 30 Opcode: <2C06h> Command set time and date 0 - 99 <1> Year <1> Month 0 - 11 <1> Day 0 – 30 <1> Hour 0 – 23 <1> Minute 0 – 59 <1> Second 0 – 59 Opcode: <2C08h> Clear Modem Common Latched Alarm 1 (No Data) Opcode: <2C09h> Clear Modem Common Latched Alarm 2 (No Data) Opcode: <2C0Bh> Command Modem Terminal Emulation <1> Terminal Emulation 0 = Adds Viewpoint. 1 = VT100, 2 = WYSE50 Opcode: <2C0Ch> Command Modem Baud Rate <1> Terminal Baud Rate 0 = 300, 1 = 600, 2 = 1200, 3 = 2400, 4 = 4800, 5 = 9600, 6 = 19200, 7 = 38400, 8 = 150 Opcode: <2C0Dh> Command Configuration Copy 0 = Current, 1 = Configuration 1, 2 = Configuration 2, 3 = <1> From Configuration 3, 4 = Configuration 4, 5 = Configuration 5 <1> To 0 = Current, 1 = Configuration 1, 2 = Configuration 2, 3 = Configuration 3, 4 = Configuration 4, 5 = Configuration 5 Opcode: <2C0Eh> Command Modem Eb/No Threshold <1> Eb/No Threshold 0.0 through 9.9 dB One (1) byte decimal implied Opcode: <2D00h> Soft Reset the Modem (No Data) 4-102 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Section 5 – Electrical Interfaces 5.0 DMD15/DMD15L Connections All DMD15/DMD15L connections are made to labeled connectors located on the rear of the unit (refer to Figures 5-1 through 5-5. The connector definitions below are those on the DMD15/DMD15L unit. Any connection interfacing to the DMD15/DMD15L must be the appropriate mating connector. Figure 5-1. DMD15/DMD15L Universal Interface Module w/ESC (shown with available options) Figure 5-2. DMD15/DMD15L G.703 Interface Module w/ESC TM051 - Rev. 5.8 5-1 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem Figure 5-3. DMD15/DMD15L G.703 Interface Module Figure 5-4. DMD15/DMD15L Universal Interface Module Figure 5-5. DMD15/DMD15L Synchronous Data Interface Module 5.1 Power Inputs Power Input Modules (Figure 5-1) are located at the right side of the DMD15/DMD15L Unit (as viewed from the rear). There is a 240 VAC, 50 – 60 Hz, and an optional 36 – 75 VDC, 3A (maximum) Power Input Module available. The power cord/connector assembly is a supplied item. 5.1.1 AC Power Input Module AC Input Module (Figure 5-1) power is applied to the port with the supplied power cable is 10 – 240 VAC, 50 – 60 Hz. Integrated into the Power Input Module is the Power On/Off Rocker Switch. Power consumption for the unit is 1A. A chassis ground connection (size 10-32 thread stud), is located to the lower left of the module. 5.1.2 DC Power Input Module The Optional DC Power Input Module (Figure 5-1) is available for all DMD15/DMD15L products. The unit may be powered from a 36 – 75 VDC source with a maximum unit power consumption of 3A. The three connections on the power strip are +, Ground, and -. There is also a Power On/Off Rocker Switch. A chassis ground connection (size 10-32 thread stud), is located to the lower left of the module. 5-2 TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces 5.2 TX (J1) If the customer orders the 70/140 MHz IF, the Transmit IF Output Port will be a 75-Ohm Female BNC Connector. The power level is programmable from -20 to +5 dBm in 0.1 dBm steps. The IF Frequency can be programmed to 50 – 90 MHz or 100 – 180 MHz, in 1 Hz steps. If an L-Band IF is ordered, the IF Port will be a 50 Ohm SMA Female Connector. The power level is programmable from -30 to -5 dBm, in 0.1 dBm steps. The IF Frequency can be programmed to 950 – 1750 MHz, in 1 Hz steps. Note: A receive only option of the DMD15/DMD15L is available. When this option is ordered, there will be no TX Port on the Back Panel. 5.3 RX (J2) If the customer orders the 70/140 MHz IF, the Transmit IF Output Port will be a 75-Ohm Female BNC Connector. The power level is programmable from -20 to +5 dBm in 0.1 dBm steps. The IF Frequency can be programmed to 50 – 90 MHz or 100 – 180 MHz, in 1 Hz steps. If an L-Band IF is ordered, the IF Port will be a 50 Ohm SMA Female Connector. The power level is programmable from -30 to -5 dBm, in 0.1 dBm steps. The IF Frequency can be programmed to 950 – 1750 MHz, in 1 Hz steps. 5.4 SD (J3) The Send Data Port (Unbalanced) is a 75-Ohm Female BNC Connector. 5.5 DDO (J4) The Drop Data Out Port (Unbalanced) is a 75-Ohm Female BNC Connector. 5.6 IDI EXC (J5) The Insert Data In Port (Unbalanced) is a 75-Ohm Female BNC Connector. 5.7 EXT CLK (J5) – Synchronous Interface Only The External Clock In Port is a 75-Ohm Female BNC Connector that is located on the Synchronous Interface Module only. 5.8 RD (J6) The Receive Data Port (Unbalanced) is a 75-Ohm Female BNC Connector. 5.9 G.703 (J7) The G.703 Interface Port (Balanced) is a 15-Pin Female “D” Connector. Refer to Table 5-1 for pinouts. TM051 - Rev. 5.8 5-3 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem Table 5-1. G.703 Interface Port (Balanced) 15-Pin Female “D” Connector (J7) Pin No. Signal Name Signal Direction 1 Send Data (-) SD-A Input 2 Ground GND --- 9 Send Data (+) SD-B Input 7 External Clock A (-) BAL EXC-A Input 8 External Clock B (+) BAL EXC-B Input 3 Receive Data A (-) RD-A Output 4 Ground GND --- 11 Receive Data B (+) RD-B Output 12 Drop Data Out (-) DDO-A Output 5 Drop Data Out (+) DDO-B Output 13 Insert Data In (-) EXC (-) IDI-A Input 6 Insert Data In (+) EXC (+) IDI-B Input 5.10 SYNC DATA (J8) The Synchronous Data Interface Port is a 37-Pin Female “D” Connector. Refer to Table 5-2 for pinouts. Table 5-2. Synchronous Data Port RS-422/RS-485/RS-232/V.35 37-Pin Female “D” Connector (J8) Pin No. 5-4 Signal Name Signal Direction 3 Transmit Octet (-) TXO-A Input 21 Transmit Octet (+) TXO-B Input 4 Send Data A (-) SD-A Input 22 Send Data B (+) SD-B Input 5 Send Timing A (-) ST-A Output 23 Send Timing B (+) ST-B Output 6 Receive Data A (-) RD-A Output 24 Receive Data B (+) RD-B Output 7 Request to Send A (-) RS-A Input 25 Request to Send B (+) RS-B Input 8 Receive Timing A (-) RT-A Output 26 Receive Timing B (+) RT-B Output 9 Clear to Send A (-) CS-A Output 10 Mod Fault - Open Collector MF Output TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces 28 Demod Fault - Open Collector DF Output 27 Clear to Send B (+) CS-B Output 11 Data Mode A (-) DM-A Output 29 Data Mode B (+) DM-B Output 13 Receiver Ready A (-) RR-A Output 31 Receiver Ready B (+) RR-B Output 15 External Clock A (-) BAL EXC-A Input 33 External Clock B (+) BAL EXC-B Input 16 Receive Octet A (-) RX-0-A Output 34 Receive Octet B (+) RX-0 B Output 17 Terminal Timing A (-) TT-A Input 35 Terminal Timing B (+) TT-B Input GND --- 1, 19, 20, 37 Signal Ground 5.11 ASYNC (J9) The Asynchronous Data Interface Port is a 9-Pin Female “D” Connector. Refer to Table 5-3 for pinouts. Table 5-3. Asynchronous Data Port 15-Pin Female “D” Connector (J9) Pin No. Signal Name Signal Direction 1 Receive Data B RXD_B Output 2 Receive Data A RXD_A Output 3 Transmit Data A TXD_A Input 4 Transmit Data B TXD_B Input 5 GND --- 6 DSR Output 7 RTS Input 8 CTS Output 9 NC --- TM051 - Rev. 5.8 5-5 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 5.11 STATUS (J11) The Modem Status Interface Port is a 15-Pin Female “D” Connector. Refer to Table 5-4 for pinouts. Table 5-4. STATUS Data Port 15-Pin Female “D” Connector (J11) Pin No. Signal Name Signal Direction 1 Mod Fault - C MF-C No Direction 2 Mod Fault – NC MF-NC No Direction 3 Mod Fault – NO MF-NO No Direction 4 Demod Fault - C DF-C No Direction 5 Demod Fault – NC DF-NC No Direction 6 Demod Fault – NO DF-NO No Direction 7 Common Equipment Fault - C CEF-C No Direction 8 Common Equipment Fault – NC CEF-NC No Direction 9 Common Equipment Fault – NO CEF-NO No Direction 10 Prompt – NO SP1-NO No Direction 11 Prompt – NC SP1-NC No Direction 12 Deferred – NO SP2-NO No Direction 13 Deferred – NC SP2-NC No Direction 14 AGC Out/Prompt – C (refer to Table 5-5) SP1C/AGC No Direction 15 Ground/Deferred – C (refer to Table 5-6) SP2-C/GND No Direction Table 5-5. S6 AGC Out/Prompt – C Switch Positions AGC Out 5-6 Prompt - C 1 On 1 Off 2 Off 2 On 3 X 3 X 4 X 4 X 5 X 5 X TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces Table 5-6. S6 Ground/Deferred – C Switch Positions AGC Out Prompt - C 1 X 1 X 2 X 2 X 3 On 3 Off 4 Off 4 On 5 X 5 X 5.13 TERMINAL (J12) The Terminal Port is an RS-232 Connection that is used to connect a terminal for operating and monitoring the system. It is a 9-Pin Female “D” Connector. Refer to Table 5-7 for pinouts. Table 5-7. Terminal Port (RS-232) 9-Pin Female “D” Connector (J12) Pin No. Signal Name Signal Direction 3 Transmit Data TxD Output 2 Receive Data RxD Input 5 Ground GND --- 7 Request to Send RTS Input 8 Clear to Send CTS Input 5.14 REMOTE (J13) The Remote Port is a RS-485 Connection for remote monitor and control of the modem. It is a 9Pin Female “D” Connector. Refer to Table 5-8 for pinouts. Table 5-8. Remote Port RS-485 9-Pin Female “D” Connector (J13) Pin No. Signal Name Signal Direction 1 Transmit Data B RS-485 TxD-B Output 2 Transmit Clock A TxC-A Output 3 Transmit Clock B TxC-B Output 4 Receive Clock A RxC-A Input 5 Signal Common Common --- 6 Transmit Data A RS-485 TxD-A Output 7 Receive Clock B RxC-B Input 8 Receive Data B RS-485 RxD-B Input 9 Receive Data A RS-485 RxD-A Input TM051 - Rev. 5.8 5-7 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 5.15 ESC 8K DATA (J15) The ESC (Engineering Service Circuits) 8K Data Port allows for communications between Earth Stations. It is a 15-Pin Female “D” Connector. Refer to Table 5-9 for pinouts. Table 5-9. ESC 8K Data Port 15-Pin Female “D” Connector (J15) Pin No. 5-8 Signal Name Signal Direction 1 Receive Octet-B ESCRXO-B Output 2 Receive Clock-B ESCRXC-B Output 3 Receive Data-B ESCRXD-B Output 4 No Connection NC --- 5 No Connection NC --- 6 Transmit Data-A ESCTXD-A Input 7 Transmit Clock-A ESCTXC-A Output 8 Transmit Octet-A ESCTXO-A Output 9 Receive Octet-A ESCRXO-A Output 10 Receive Clock-A ESCRXC-A Output 11 Receive Data-A ESCRXD-A Output 12 Ground GND --- 13 Transmit Data-B ESCTXD-B Input 14 Transmit Clock-B ESCTXC-B Output 15 Transmit Octet-B ESCTXO-B Output TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces 5.16 ESC VOICE (J16) The ESC Voice Port allows for communications between Earth Stations. It is a 9-Pin Female “D” Connector. Refer to Table 5-10 for pinouts. Table 5-10. J16-ESC Audio/64K Data-9-Pin Female ‘D’ Pin No. 1 2 3 4 5 6 7 8 9 Signal Description ESCAUDTX 1A ESCAUDRX 1A GND ESCAUDTX 2B ESCAUDRX 2B ESCAUDTX 1B ESCAUDRX 1B ESCAUDTX 2A ESCAUDRX 2A Tx Audio 1A Rx Audio 1A Ground Tx Audio 2B Rx Audio 2B Tx Audio 1B Rx Audio 1B Tx Audio 2A Rx Audio 2A Audio Direction Input Output Description Tx Data 64K A Rx Data 64K A Ground Tx Clock 64K B Rx Clock 64K B Tx Data 64K B Rx Data 64K B Tx Clock 64K A Rx Clock 64K A Input Output Input Output Input Output 64K Direction Input Output Output Output Input Output Output Output 5.17 ESC ALARMS (J17) The ESC Alarms Port is a 25-Pin Female “D” Connector. Refer to Table 5-11 for pinouts. Table 5-11. ESC Alarms Port 25-Pin Female “D” Connector (J17) Pin No. Signal Name Signal Direction 1 Ground GND --- 2 Backward Alarm Out - 1NO ESCBWO 1NO N/A 3 No Connection NC --- 4 Backward Alarm Out - 2 NO ESCBWO 2NO N/A 5 No Connection NC --- 6 Backward Alarm Out - 3 NO ESCBWO 3NO N/A 7 Ground GND --- 8 Backward Alarm Out - 4 NO ESCBWO 4NO N/A 9 No Connection NC --- 10 Backward Alarm In - 2 ESCBWI 2 Input 11 Backward Alarm In - 4 ESCBWI 4 Input 12 No Connection NC --- 13 No Connection NC --- 14 Backward Alarm Out - 1 C ESCBWO 1C N/A 15 Backward Alarm Out - 1 NC ESCBWO 1NC N/A 16 Backward Alarm Out - 2 C ESCBWO 2C N/A 17 Backward Alarm Out - 2 NC ESCBWO 2NC N/A TM051 - Rev. 5.8 5-9 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 18 Backward Alarm Out - 3 C ESCBWO 3C N/A 19 Backward Alarm Out - 3 NC ESCBWO 3NC N/A 20 Backward Alarm Out - 4 C ESCBWO 4C N/A 21 Backward Alarm Out - 4 NC ESCBWO 4NC N/A 22 Backward Alarm In – 1 ESCBWI 1 Input 23 Backward Alarm In – 3 ESCBWI 3 Input 24 No Connection NC --- 25 No Connection NC --- 5.18 SWITCH (J18) The Switch Port is a 68-Pin High-Density Female Connector. Refer to Table 5-12 for pinouts. Table 5-12. Switch Port 68-Pin High-Density Female Connector (J18) Pin No. 5-10 Signal Name Signal Direction 1 G.703 Send Data Input A G.703B SD-A Input 2 Synchronous Data Send Data Input - A SYNC SD-A Input 3 IDR ESC Backward Alarm Out - 1 Common ESCBWO 1C --- 4 G.703 Insert Data Input – A G.703B IDI-A Input 5 Synchronous Data Send Timing Output – A SYNC ST-A Output 6 IDR ESC Backward Alarm Out - 1 Normally Open ESCBWO 1NO Input 7 Synchronous Data Terminal Timing SYNC TT-A Input – A Input 8 IDR ESC Backward Alarm Out - 2 Normally Closed --- 9 DDO-A RT-A G.703 Drop Data Out A Synchronous Data Receive Timing Output - A Output 10 IDR ESC Backward Alarm Output - 3 Common --- 11 G.703 Insert Data Out A IDO-A RD-A Synchronous Data Receive Data A Output 12 IDR ESC Backward Alarm Output - 3 Normally Open ESCBWO 3NO --- 13 External Clock Input - A BAL EXC-A Input 14 Ground GND --- 15 IDR ESC Audio Input Channel 1A ESCAUDTX 1A Input ESCBWO 2NC ESCBWO 3C TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces 16 IDR ESC Audio Input Channel 2A 17 IDR ESC Audio Output Channel 1A ESCAUD RX 1A Output 18 IDR ESC Audio Output Channel 2A ESCAUD RX 2A Output 19 IDR ESC Backward Alarm Input - 3 ESCBWI 3 Input 20 IBS ES Transmit Data A IDR ESC Backward Alarm Input 1 TXD-A BWI 1 Input 21 Mod Fault Open Collector Output MOD FLT Output Open Collector 22 IBS ES Receive Data Output - A ES RXD-A Output 23 IBS ES Data Set Ready (RS-232 Only) ES DSR Output 24 IDR ESC Transmit 8 Kbps Output Clock ESCTXC-A Output 25 IDR ESC Transmit 8 Kbps Output Data ESCTXD-A Input 26 IDR ESC Receive 8 Kbps Output Clock ESCRXC-A Output 27 IDR ESC Receive 8 Kbps Output Data ESCRXD-A Output 28 IDR ESC Backward Alarm Output - 4 Normally Closed ESCBWO 4NC --- 29 IBS Transmit Octet Input - A TXO-A Input 30 Synchronous Data Mode A SYNC DM-A Output 31 Synchronous Data Clear to Send - A SYNC CS-A Output 32 IBS Receive Octet Output - A RXO-A Output 33 Synchronous Data Request to Send - A SYNC RS-A Input 34 Synchronous Data Receiver Ready - A SYNC RR-A Output 35 G.703 Send Data Input - B G703B SD-B Input 36 Synchronous Data Send Data Input - B SYNC SD-B Input 37 IDR ESC Backward Alarm Out - 1 Normally Closed ESCBWO 1 NC --- 38 G.703 Insert Data Input - B G703B IDI-B --- 39 Synchronous Data Send Timing Output - B SYNC ST-B --- 40 IDR ESC Backward Alarm Out - 2 Common ESCBWO 2C --- TM051 - Rev. 5.8 ESCAUDTX 2A Input 5-11 User Interfaces 5-12 DMD15/DMD15L IBS/IDR Satellite Modem 41 Synchronous Data Terminal Timing – B SYNC TT-B --- 42 IDR ESC Backward Alarm Output - 2 Normally Open ESCBWO 2NO --- 43 G.703 Drop Data Out - B Synchronous Data Receive Timing – B DDO-B RT-B --- 44 IDR ESC Backward Alarm Out - 3 Normally Closed ESCBWO 3NC --- 45 G.703 Insert Data Out Synchronous Data IDO-B RD-B --- 46 IDR ESC Backward Alarm Out - 4 Common ESCBWO 4C --- 47 External Clock Input - B BAL EXC-B Input 48 Ground GND --- 49 IDR ESC Audio Input Channel - 1B ESCAUDTX 1B Input 50 IDR ESC Audio Input Channel - 2B ESCAUDTX 2B Input 51 IDR ESC Audio Output Channel - 1B ESCAUDRX 1B Output 52 IDR ESC Audio Output Channel - 2B ESCAUDRX 2B Output 53 IDR ESC Backward Alarm Input - 4 ESCBWI 4 --- 54 IBS ES Transmit Data – B IDR ESC Backward Alarm Input - 2 TX-B BWI 2 Input 55 Demod Fault Open Collector Output DMD FLT Output Open Collector 56 IBS ES Receive Data Input - B ES RXD-B Output 57 Ground GND --- 58 IDR ESC Transmit 8 Kbps Output Clock - B ESCTXC-B Output 59 IDR ESC Transmit 8 Kbps Output Data - B ESCTXD-B Input 60 IDR ESC Receive 8 Kbps Clock Output - B ESCRXC-B Output 61 IDR ESC Receive 8 Kbps Data Output - B ESCRXD-B Output 62 IDR ESC Backward Alarm Out - 4 Normally Open ESCBWO 4NO --- 63 IBS Transmit Octet Input - B TXO-B Input TM051 – Rev. 5.8 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces 64 Synchronous Data – Data Mode Out - B SYNC DM-B Output 65 Synchronous Data - Clear to Send - B SYNC CS-B Input 66 IBS Receive Octet Output - B RXO-B Output 67 Synchronous Data Request to Send – B SYNC RS-B Input 68 Synchronous Data Receiver Ready - B SYNC RR-B Output TM051 - Rev. 5.8 5-13 User Interfaces 5-14 DMD15/DMD15L IBS/IDR Satellite Modem TM051 – Rev. 5.8 DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem Maintenance Section 6 – Maintenance 6.0 Periodic Maintenance The DMD15/DMD15L modulator requires no periodic field maintenance procedures. Should a unit be suspected of a defect in field operations after all interface signals are verified, the correct procedure is to replace the unit with another known working DMD15/DMD15L. If this does not cure the problem, wiring or power should be suspect. There is no external fuse on the DMD15/DMD15L. The fuse is located on the power supply assembly inside the case, and replacement is not intended in the field. 6.1 Troubleshooting The following is a brief list of possible problems that could be caused by failures of the modem or by improper setup and configuration for the type of service. The list is arranged by possible symptoms exhibited by the modem. Symptom: The Modem will not acquire the incoming carrier: Possible Cause: Improper receive input to modem. Action: Check that the receive cabling is correct. Possible Cause: Receive carrier level too low. Action: Check that the receive cabling is correct, that the downconverter is properly set and that the LNA is turned on. If a spectrum analyzer is available, locate and measure the receive level, which should not be below -65 dBm absolute, -50 dBm is nominal. Possible Cause: Receive carrier frequency outside of acquisition range. Action: Check that the receive acquisition range is adequate for the possible system offsets. Setting the value to 30 kHz is a standard value encompassing all normal offsets. After acquisition, the actual receive frequency can be read from the Front Panel. Possible Cause: Transmit carrier incompatible. Action: Check the receive parameter settings and ensure that they match those on the modulator. Possible Cause: Modem is in Test Mode. Action: Check the modem Front Panel for yellow warning LEDs indicating a Test Mode is enabled. Self-Test or IF Loopback disconnects the Demodulator from the IF receive input connector. Symptom: The Async Port is not configured correctly. Action: Refer to Section 5.8 to correctly set switches for correct configuration. 6.2 DMD15/DMD15L Fault Philosophy The DMD15/DMD15L performs a high degree of self-monitoring and fault isolation. The alarms are separated into three categories; Active Alarms, Common Equipment Alarms, and Latched Alarms. In addition, a feature exists that allows the user to ‘Mask’ out certain Alarms as explained below. Alarms that are recorded in the event buffer are the same as the alarm buffer. TM051 - Rev. 5.8 6-1 Maintenance DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem Masking alarms can cause undesirable modem performance. 6.2.1 Alarm Masks The user has the capability to ‘Mask’ individual alarms on the DMD15/DMD15L. When an Alarm is masked, the Front Panel LEDs and the Fault Relays do not get asserted, but the Alarm will still be displayed. This feature is very helpful during debugging or to lock out a failure that the user is already aware of. 6.2.2 Active Alarms 6.2.2.1 Major Alarms Major alarms indicate a modem hardware failure. Major alarms may flash briefly during modem configuration changes and during power-up but should not stay illuminated. Alarms are grouped into Transmit alarms and Receive alarms - Transmit and Receive are completely independent. 6.2.2.2 Minor Alarms Minor alarms indicate that a problem may persist outside the modem such as loss of Terrestrial Clock, loss of terrestrial data activity, or a detected transmit or receive AIS condition. Alarms are grouped into Transmit Alarms and Receive Alarms - Transmit and Receive are completely independent. 6.2.2.3 Latched Alarms Latched alarms are used to catch intermittent failures. If a fault occurs, the fault indication will be latched even if the alarm goes away. After the modem is configured and running, it is recommended that the latched alarms be cleared as a final step. 6.3 DMD15/DMD15L Fault Tree Matrices Tables 6-1 through 6-3 represent, in matrix form, the faults that may occur within the DMD15/DMD15L. There are three matrices: Interface/Common Equipment Faults, Tx Faults and Rx Faults. 6-2 TM051 – Rev. 5.8 DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem Maintenance Table 6-1. DMD15/DMD15L Interface/Common Equipment Fault Matrix Table 6-2. DMD15/DMD15L RX Fault Matrix TM051 - Rev. 5.8 6-3 Maintenance DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem Table 6-3. DMD15/DMD15L TX Fault Matrix 6.3.1 Interpreting the Matrices The first vertical column in the Tables represents the various Faults that the modem may identify. The top horizontal column indicates the various actions that the modem will undertake. These actions may be in the form of a relay, a switch or an LED. 6.3.2 IBS Fault Conditions and Actions Figure 6-10 and Table 6-4 illustrates the IBS Fault Conditions and Actions to be taken at the Earth Station, at the Terrestrial Data Stream, and the Satellite. These faults include those detected on the Terrestrial link and those detected from the satellite. 6-4 TM051 – Rev. 5.8 DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem Maintenance Figure 6-10. IBS Alarm Concept Table 6-4. IBS Fault Conditions and Actions (includes Drop and Insert) Fault Detected on Terrestrial Link (Across Interface A) Action In Earth Station Action to Terrestrial (Across Interface H) Action to Satellite (Across Interface D) FA1 - Loss of Terrestrial Input AS1, 2 - IBS Prompt, Service Alarm AH2 - ‘1’ in Bit 3 of NFAS TSO, Yellow Alarm AD1 - AIS in Relevant TS’s FA2 - Loss of Terrestrial Signaling AS1 - - IBS Prompt Alarm AH2 - ‘1’ in Bit 3 of NFAS TSO, Yellow Alarm AD3 - ‘1111’ in RelevantTS16’s FA3 - Loss of Terrestrial Frame AS1 - - IBS Prompt Alarm AH2 - ‘1’ in Bit 3 of NFAS TSO, Yellow Alarm AD1 - AIS in Relevant TS’s FA4 - Loss of Terrestrial Multiframe AS1 - IBS Prompt Alarm AH2 - ‘1’ in Bit 3 of NFAS TSO, Yellow Alarm AD3 - ‘1111’ in Relevant TS16’s FA5 - BER of 1x 10 or Greater on Terrestrial Input AS1 - IBS Prompt Alarm AH2 - ‘1’ in Bit 3 of NFAS TSO, Yellow Alarm AD1 - AIS in Relevant TS’s FA6 - Alarm Indication Received on Terrestrial Input Fault Detected From Satellite (Across Interface E) --- --- AD2 - ‘1’ in Bit 3 of Byte 32 FA1 - Loss of Satellite Signal Input AS1,2 - IBS Prompt, Service Alarm AH1, 3 - AIS in TS’s, ‘1111’ in TS16 AD2 - ‘1’ in Bit 3 of Byte 32 -3 TM051 - Rev. 5.8 6-5 Maintenance DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem FA2 - Loss of Satellite Frame AS1,2 - IBS Prompt, Service Alarm AH1, 3 - AIS in TS’s, ‘1111’ in TS16 AD2 - ‘1’ in Bit 3 of Byte 32 FA3 - Loss of Satellite Multiframe AS1,2 - IBS Prompt, Service Alarm AH1, 3 - AIS in TS’s, ‘1111’ in TS16 AD2 - ‘1’ in Bit 3 of Byte 32 FA4 - BER of 1E-3 or Greater From Satellite Input AS1,2 - IBS Prompt, Service Alarm AH1, 3 - AIS in TS’s, ‘1111’ in TS16 AD2 - ‘1’ in Bit 3 of Byte 32 FA5 - Alarm Indication Received From Satellite Input AS2 - IBS Service Alarm AH2 - ‘1’ in Bit 3 of NFAS TS0, Yellow Alarm --- 6-6 TM051 – Rev. 5.8 DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem Technical Specifications Section 7 – Technical Specifications 7.0 Modulator Specifications Modulation: Data Rates: Symbol Rates: IF Tuning Range: IF Impedance: IF Connector: IF Return Loss: Output Power: Output Stability: Output Spectrum: Spurious On/Off Power Ratio: Scrambler: FEC: Outer Encoder Options: Data Clock Source: Internal Stability: BPSK and QPSK (OQPSK, 8PSK, 16QAM optional) 9.6 Kbps to 10 Mbps in 1 bps steps 6300 to 6500000 Symbols per second 128000 to 6500000 Symbols per second (8PSK/16QAM 50 to 90, 100 to 180 MHz in 1 Hz steps 950 – 1750 MHz (optional L-Band) 75 Ohms, 50 Ohms (optional) 50 Ohms (optional L-Band) BNC, (L-Band, SMA) 20 dB minimum (13 dB L-Band) -20 to +5.0 dB in 0.1 dB steps (L-Band -5 to -30 dB) ±0.5 dB over time and temperature Meets IESS 308/309/310 Power Spectral mask < -55 dBc in any 4 kHz band > 60 dB CCITT V.35 or IBS (others optional) Viterbi, K = 7 at 1/2, 3/4 and 7/8 Rate Sequential 1/2, 3/4, 7/8 (optional) Trellis 2/3 (optional) Turbo Product Code (optional) Rate 3/4 (0.793) - (64, 57) x (64, 57) Rate 1/2 (0.495) - (32,26) x (32,26) x (4,3) (Turbo supported at all modulation types) Reed-Solomon INTELSAT Rates Internal, External, Rx Recovered -6 -7 1 x 10 Typical (optional to 1 x 10 ) 7.1 Demodulator Specifications Demodulation: Data Rates: Symbol Rates: IF Tuning Range: IF Impedance: IF Connector: IF Return Loss: Spectrum: Input Level: Adjacent Channel Rejection Ratio: Total Input Power: TM051 - Rev. 5.8 BPSK and QPSK (OQPSK, 8PSK, 16QAM optional) 9.6 Kbps to 10 Mbps, 1 bps steps 12696 to 6500000 Symbols per second (B/O/QPSK) 128000 to 6500000 Symbols per second (8PSK/16QAM) 50 to 90, 100 to 180 MHz in 1 Hz steps 950 to 1750 MHz (optional L-Band) 75 Ohms, 50 Ohms (optional) 50 Ohms (optional L-Band) BNC, SMA (optional L-Band) 20 dB minimum INTELSAT IESS 308/309/310 compliant -55 to -25 dBm > +14 dBc +10 dBm or +40 dBc (the lesser) 7-1 Technical Specifications DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem FEC: Decoder Options: Descrambler: Acquisition Range: Sweep Delay Value: Reacquisition sweep Viterbi, K = 7 at 1/2, 3/4, and 7/8 Rate, Rate Sequential 1/2, 3/4, 7/8 (optional) Trellis 2/3 (Optional) Turbo Product Code (Optional) 3/4 Rate (0.793) - (64,57) x (64,57) 1/2 Rate (0.495) - (32,26) x (32,26) x (4,3) (Turbo supported at all modulation types) Reed-Solomon CCITT V.35 or IBS (others optional) Programmable ±1 kHz to ± 32 kHz 0 sec to 900.0 sec. in 100 msec. Steps 0 top 32000 Hz in 1 Hz steps. 7.2 Plesiochronous Buffer Size: Centering: Centering Modes: Clock: 2 ms to 32 ms Automatic on underflow/overflow IBS: Integral number of frames IDR: Integral number of multiple frames Transmit, External, Rx Recovered or SCT (Internal) 7.3 Monitor and Control Transmit and Receive Frequencies Transmit and Receive Data Rates and Code Rate Differential Encoding On/Off Scrambler On/Off Spectrum Normal/Inverted Clock Source, Polarity and Frequency Transmit Carrier On/Off and Tx Level Tx Test Modes Demodulator Input Level Eb/No Buffer Size, Clock, Center Buffer Sweep Range and Delay IDR/IBS Backward Alarms, Modem/Switch Alarms IDR/IBS Framing, Drop and Insert Mode and Flags Loopback; Terrestrial and Satellite 7.4 DMD15/DMD15L Drop and Insert (Optional) Terrestrial Data: Line Coding: Framing: Time Slot Selection: Time Slots: Data Rates: 7-2 1.544 Mbps or 2.048 Mbps, G.732/733 AMI or B8ZS for T1 and HDB3 for E1 D4, ESF, or SLC-96 for T1 and PCM30 (30 channels) or PCM31 (31 channels for E1). n x 64 contiguous or arbitrary blocks for Drop or Insert. TS1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30 64, 128, 192, 256, 320, 384, 512, 640, 768, 960, 1024, 1280, 1536, 1920 Kbps TM051 – Rev. 5.8 DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem Technical Specifications 7.5 Terrestrial Interfaces A variety of standard interfaces is available for the DMD15/DMD15L Modem in stand-alone applications. 7.6 Universal Interface Module (UIM): G.703 T1 (DSX1: G.703 E1: G.703 T2 (DSX2): G.703 E2: ITU V.35: RS-422/-449: RS-232 User Selectable RS-422/449, V.35, T1(DSX1, T2 (DSX2, E1 (G.703), and E2 (G.703) 1.544 Mbps, 100 Ohm balanced, AMI and B8ZS 2.048 Mbps, 75 Ohm unbalanced, and 120 Ohm balanced, HDB3 6.312 Mbps, 75 Ohm unbalanced, and 110 Ohm balanced, B8ZS and B6ZS 8.448 Mbps, 75 Ohm BNC, unbalanced, HDB3 Differential, Clock and Data only All Rates, Differential, Clock/Data, DCE (50 Ohm options are also available) DCE up to 200 Kbps 7.7 Environmental Prime Power: Operating Temperature: Storage Temperature: 100 – 240 VAC, 50 – 60 Hz, 1.0 A maximum. 48 VDC (IEC) 3-Pin Power Connector with Switch 0 to 50°C, 95% humidity, non-condensing -20 to 70°C, 99% humidity, non-condensing 7.8 Physical Chassis size: Weight: TM051 - Rev. 5.8 19” W x 22” D x 1.75” H (48.26 x 43.18 x 4.45 cm) 9.6 pounds (4.3 Kg) 7-3 Technical Specifications DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem 7.9 DMD15 Data Rate Limits BPSK NONE BPSK 1/2 BPSK 3/4 BPSK 7/8 BPSK 495 BPSK 793 Modulator Low 6300 3150 4725 5512 3113 4987 High 6500000 3250000 4875000 5687500 3211988 5145833 Demodulator Low High 12695 6500000 6347 3250000 9521 4875000 11108 5687500 6273 3211988 10050 5145833 QPSK NONE QPSK 1/2 QPSK 3/4 QPSK 7/8 QPSK 495 QPSK 793 12600 6300 9450 11025 6226 9975 10000000 6500000 9750000 10000000 6423976 10000000 25390 12695 19042 22216 12546 20100 10000000 6500000 9750000 10000000 6423976 10000000 OQPSK NONE OQPSK 1/2 OQPSK 3/4 OQPSK 7/8 OQPSK 495 OQPSK 793 12600 6300 9450 11025 6226 9975 10000000 6500000 9750000 10000000 6423976 10000000 25390 12695 19042 22216 12546 20100 10000000 6500000 9750000 10000000 6423976 10000000 8PSK 2/3 8PSK 495 8PSK 793 256000 256000 304000 10000000 256000 9635964 256000 10000000 304000 10000000 9635964 10000000 16QAM 3/4 16QAM 7/8 16QAM 495 16QAM 793 384001 448001 253006 405334 10000000 10000000 10000000 10000000 10000000 10000000 10000000 10000000 7-4 384001 448001 253006 405334 TM051 – Rev. 5.8 DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem Technical Specifications 7.10 DMD15 BER Specifications Modem BER Performance (Viterbi) Specification Typical IBS IDR IDR IBS IBS IDR IDR 1/2 Rate 3/4 Rate 7/8 Rate 1/2 Rate 3/4 Rate 3/4 Rate 7/8 Rate -3 4.1 dB 5.2 dB 6.2 dB 3.25 dB 4.2 dB 4.35 dB 5.8 dB -4 4.6 dB 6.0 dB 7.1 dB 3.8 dB 4.9 dB 5.25 dB 6.5 dB -5 5.3 dB 6.7 dB 7.9 dB 4.6 dB 5.6 dB 5.9 dB 7.2 dB -6 6.0 dB 7.5 dB 8.6 dB 5.2 dB 6.3 dB 6.6 dB 7.9 dB -7 6.6 dB 8.2 dB 9.3 dB 5.9 dB 6.9 dB 7.3 dB 8.6 dB -8 7.1 dB 8.7 dB 10.2 dB 6.4 dB 7.5 dB 7.8 dB 9.4 dB 10 10 10 10 10 10 8PSK Trellis Decoder 8PSK BER Specification Typical 2/3 Rate 2/3 Rate -3 6.2 dB 5.6 dB -4 7.0 dB 6.4 dB -5 7.8 dB 7.2 dB -6 8.7 dB 8.1 dB -7 9.5 dB 8.9 dB -8 10.2 dB 9.7 dB 10 10 10 10 10 10 Trellis Decoder and Reed-Solomon BER Specification Typical 8PSK 2/3 Rate 8PSK 2/3 Rate -4 5.5 dB 5.1 dB -5 5.8 dB 5.4 dB -6 6.2 dB 5.6 dB -7 6.5 dB 5.8 dB -8 6.7 dB 6.1 dB -9 6.9 dB 6.3 dB 10 10 10 10 10 10 Sequential Decoder BER Performance (1.544 Mbps) Specification BER 1/2 Rate TM051 - Rev. 5.8 3/4 Rate Typical 7/8 Rate 1/2 Rate 3/4 Rate 7/8 Rate 7-5 Technical Specifications DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem -3 4.8 dB 5.2 dB 6.0 dB 4.3 dB 4.7 dB 5.5 dB -4 5.2 dB 5.7 dB 6.4 dB 4.7 dB 5.2 dB 5.9 dB -5 5.6 dB 6.1 dB 6.9 dB 5.1 dB 5.6 dB 6.4 dB -6 5.9 dB 6.5 dB 7.4 dB 5.4 dB 6.1 dB 6.9 dB -7 6.3 dB 7.0 dB 7.9 dB 5.8 dB 6.5 dB 7.4 dB -8 6.7 dB 7.4 dB 8.4 dB 6.2 dB 6.9 dB 7.9 dB 10 10 10 10 10 10 Concatenated Reed-Solomon Performance (BER Specifications) Guaranteed Performance BER vs. Eb/No Rate 1/2 FEC Rate 3/4 FEC -6 4.1 5.6 -7 4.2 5.8 -8 4.4 6.0 -10 5.0 6.3 10 10 10 10 16 QAM BER Performance (Viterbi Decoder) BER Specification Typical 1/2 Rate 3/4 Rate 7/8 Rate 1/2 Rate 3/4 Rate 7/8 Rate -3 n/a 8.9 dB 10.3 dB n/a 8.1 dB 9.5 dB -4 n/a 9.8 dB 11.1 dB n/a 9.0 dB 10.3 dB -5 n/a 10.7 dB 11.9 dB n/a 9.9 dB 11.1 dB -6 n/a 11.5 dB 12.7 dB n/a 10.7 dB 11.9 dB -7 n/a 12.4 dB 13.5 dB n/a 11.6 dB 12.7 dB -8 n/a 13.3 dB 14.3 dB n/a 12.5 dB 13.5 dB 10 10 10 10 10 10 16 QAM BER Performance (Viterbi Decoder w/ Reed-Solomon) BER 1/2 3/4 -3 n/a 8.4 dB -4 n/a 8.6 dB -5 n/a 8.9 dB 10 10 10 7-6 Specification Typical 7/8 1/2 3/4 7/8 9.8 dB n/a 7.8 dB 9.3 dB 10.1 dB n/a 8.1 dB 9.6 dB 10.3 dB n/a 8.3 dB 9.9 dB TM051 – Rev. 5.8 DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem Technical Specifications -6 n/a 9.1 dB 10.5 dB n/a 8.6 dB 0.2 dB -7 n/a 9.3 dB 10.8 dB n/a 8.8 dB 10.4 dB -8 n/a 9.5 dB 11.0 dB n/a 9.1 dB 10.7 dB 10 10 10 TM051 - Rev. 5.8 7-7 Technical Specifications 7-8 DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem TM051 – Rev. 5.8 DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem TM051 - Rev. 5.8 Technical Specifications 7-9 Technical Specifications 7-10 DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem TM051 – Rev. 5.8 DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem Appendix A Section 8 – Appendices Appendix A – Reed-Solomon Codes n Valid Values for k 2 1 3 2 4 2, 3 5 3, 4 6 3, 4, 5 7 4, 5, 6 8 4, 6, 7 9 5, 6, 7, 8 10 5, 7, 8, 9 11 6, 8, 9, 10 12 6, 8, 9, 10, 11 13 7, 9, 10, 11, 12 14 7, 10, 11, 12, 13 15 8, 10, 12, 13, 14 16 8, 11, 12, 13, 14, 15 17 9, 12, 13, 14, 15, 16 18 9, 12, 14, 15, 16, 17 19 10, 13, 15, 16, 17, 18 20 10, 14, 15, 16, 17, 18, 19 21 11, 14, 16, 17, 18, 19, 20 22 11, 15, 17, 18, 19, 20, 21 23 12, 16, 18, 19, 20, 21, 22 24 12, 16, 18, 20, 21, 22, 23 25 13, 17, 19, 20, 21, 22, 23, 24 26 13, 18, 20, 21, 22, 23, 24, 25 27 14, 18, 21, 22, 23, 24, 25, 26 TM051 - Rev. 5.8 5-1 Glossary DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem 28 14, 19, 21, 23, 24, 25, 26, 27 29 15, 20, 22, 24, 25, 26, 27, 28 30 15, 20, 23, 24, 25, 26, 27, 28, 29 31 16, 21, 24, 25, 26, 27, 28, 29, 30 32 16, 22, 24, 26, 27, 28, 29, 30, 31 33 17, 22, 25, 27, 28, 29, 30, 31, 32 34 17, 23, 26, 28, 29, 30, 31, 32, 33 35 18, 24, 27, 28, 30, 31, 32, 33, 34 36 18, 24, 27, 29, 30, 31, 32, 33, 34, 35 37 19, 25, 28, 30, 31, 32, 33, 34, 35, 36 38 19, 26, 29, 31, 32, 33, 34, 35, 36, 37 39 20, 26, 30, 32, 33, 34, 35, 36, 37, 38 40 20, 27, 30, 32, 34, 35, 36, 37, 38, 39 41 21, 28, 31, 33, 35, 36, 37, 38, 39, 40 42 28, 32, 34, 35, 36, 37, 38, 39, 40, 41 43 29, 33, 35, 36, 37, 38, 39, 40, 41, 42 44 30, 33, 36, 37, 38, 39, 40, 41, 42, 43 45 30, 34, 36, 38, 39, 40, 41, 42, 43, 44 46 31, 35, 37, 39, 40, 41, 42, 43, 44, 45 47 32, 36, 38, 40, 41, 42, 43, 44, 45, 46 48 32, 36, 39, 40, 42, 43, 44, 45, 46, 47 49 33, 37, 40, 41, 42, 43, 44, 45, 46, 47, 48 50 34, 38, 40, 42, 43, 44, 45, 46, 47, 48, 49 51 34, 39, 41, 43, 44, 45, 46, 47, 48, 49, 50 52 35, 39, 42, 44, 45, 46, 47, 48, 49, 50, 51 53 36, 40, 43, 45, 46, 47, 48, 49, 50, 51, 52 54 36, 41, 44, 45, 47, 48, 49, 50, 51, 52, 53 55 37, 42, 44, 46, 48, 49, 50, 51, 52, 53, 54 56 38, 42, 45, 47, 48, 49, 50, 51, 52, 53, 54, 55 5-2 TM051 - Rev. 5.8 DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem 57 38, 43, 46, 48, 49, 50, 51, 52, 53, 54, 55, 56 58 39, 44, 47, 49, 50, 51, 52, 53, 54, 55, 56, 57 59 40, 45, 48, 50, 51, 52, 53, 54, 55, 56, 57, 58 60 40, 45, 48, 50, 52, 53, 54, 55, 56, 57, 58, 59 61 41, 46, 49, 51, 53, 54, 55, 56, 57, 58, 59, 60 62 42, 47, 50, 52, 54, 55, 56, 57, 58, 59, 60, 61 63 48, 51, 53, 54, 56, 57, 58, 59, 60, 61, 62 64 48, 52, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63 65 49, 52, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64 66 50, 53, 55, 57, 58, 59, 60, 61, 62, 63, 64, 65 67 51, 54, 56, 58, 59, 60, 61, 62, 63, 64, 65, 66 68 51, 55, 57, 59, 60, 61, 62, 63, 64, 65, 66, 67 69 52, 56, 58, 60, 61, 62, 63, 64, 65, 66, 67, 68 70 53, 56, 59, 60, 62, 63, 64, 65, 66, 67, 68, 69 71 54, 57, 60, 61, 63, 64, 65, 66, 67, 68, 69, 70 72 54, 58, 60, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71 73 55, 59, 61, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72 74 56, 60, 62, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73 75 57, 60, 63, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74 76 57, 61, 64, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75 77 58, 62, 65, 66, 68, 69, 70, 71, 72, 73, 74, 75, 76 78 59, 63, 65, 67, 69, 70, 71, 72, 73, 74, 75, 76, 77 79 60, 64, 66, 68, 70, 71, 72, 73, 74, 75, 76, 77, 78 80 60, 64, 67, 69, 70, 72, 73, 74, 75, 76, 77, 78, 79 81 61, 65, 68, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80 82 62, 66, 69, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81 83 63, 67, 70, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82 84 68, 70, 72, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83 85 68, 71, 73, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84 TM051 - Rev. 5.8 Glossary 5-3 Glossary DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem 86 69, 72, 74, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85 87 70, 73, 75, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86 88 71, 74, 76, 77, 79, 80, 81, 82, 83, 84, 85, 86, 87 89 72, 75, 77, 78, 80, 81, 82, 83, 84, 85, 86, 87, 88 90 72, 75, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89 91 73, 76, 78, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90 92 74, 77, 79, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91 93 75, 78, 80, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92 94 76, 79, 81, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93 95 76, 80, 82, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94 96 77, 80, 83, 84, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95 97 78, 81, 84, 85, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96 98 79, 82, 84, 86, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97 99 80, 83, 85, 87, 88, 90, 91, 92, 93, 94, 95, 96, 97, 98 100 80, 84, 86, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99 101 81, 85, 87, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100 102 82, 85, 88, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101 103 83, 86, 89, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102 104 84, 87, 90, 91, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103 105 88, 90, 92, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104 106 89, 91, 93, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105 107 90, 92, 94, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106 108 90, 93, 95, 96, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107 109 91, 94, 96, 97, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108 110 92, 95, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109 111 93, 96, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110 112 94, 96, 98, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111 113 95, 97, 99, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112 114 95, 98, 100, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113 5-4 TM051 - Rev. 5.8 DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem 115 96, 99, 101, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114 116 97, 100, 102, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115 117 98, 101, 103, 104, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116 118 99, 102, 104, 105, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117 119 100, 102, 105, 106, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118 120 100, 103, 105, 107, 108, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119 121 101, 104, 106, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120 122 102, 105, 107, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121 123 103, 106, 108, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122 124 104, 107, 109, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123 125 105, 108, 110, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124 126 108, 111, 112, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125 127 109, 112, 113, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126 128 110, 112, 114, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127 129 111, 113, 115, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128 130 112, 114, 116, 117, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129 131 113, 115, 117, 118, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130 132 114, 116, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131 133 114, 117, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132 134 115, 118, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133 135 116, 119, 120, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134 136 117, 119, 121, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135 137 118, 120, 122, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136 138 119, 121, 123, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137 139 120, 122, 124, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138 140 120, 123, 125, 126, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139 141 121, 124, 126, 127, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140 142 122, 125, 127, 128, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141 143 123, 126, 128, 129, 130, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142 TM051 - Rev. 5.8 Glossary 5-5 Glossary DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem 144 124, 126, 128, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143 145 125, 127, 129, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144 146 126, 128, 130, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145 147 129, 131, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146 148 130, 132, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147 149 131, 133, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148 150 132, 134, 135, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149 151 133, 135, 136, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150 152 133, 136, 137, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151 153 134, 136, 138, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152 154 135, 137, 139, 140, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153 155 136, 138, 140, 141, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154 156 137, 139, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155 157 138, 140, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156 158 139, 141, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157 159 140, 142, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158 160 140, 143, 144, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159 161 141, 144, 145, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160 162 142, 144, 146, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161 163 143, 145, 147, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162 164 144, 146, 148, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163 165 145, 147, 149, 150, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164 166 146, 148, 150, 151, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165 167 147, 149, 151, 152, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166 168 150, 152, 153, 154, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167 169 151, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168 170 152, 153, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169 171 152, 154, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170 172 153, 155, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171 5-6 TM051 - Rev. 5.8 DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem Glossary 173 154, 156, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172 174 155, 157, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173 175 156, 158, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174 176 157, 159, 160, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175 177 158, 160, 161, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176 178 159, 161, 162, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177 179 160, 162, 163, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178 180 160, 162, 164, 165, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179 181 161, 163, 165, 166, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180 182 162, 164, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181 183 163, 165, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182 184 164, 166, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183 185 165, 167, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184 186 166, 168, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185 187 167, 169, 170, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186 188 168, 170, 171, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187 189 171, 172, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188 190 171, 173, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189 191 172, 174, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190 192 173, 175, 176, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191 193 174, 176, 177, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192 194 175, 177, 178, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193 195 176, 178, 179, 180, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194 196 177, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195 197 178, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196 198 179, 180, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197 199 180, 181, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198 200 180, 182, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199 201 181, 183, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200 TM051 - Rev. 5.8 5-7 Glossary DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem 202 182, 184, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201 203 183, 185, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202 204 184, 186, 187, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203 205 185, 187, 188, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204 206 186, 188, 189, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205 207 187, 189, 190, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206 208 188, 190, 191, 192, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207 209 189, 190, 192, 193, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208 210 191, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209 211 192, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210 212 193, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211 213 194, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212 214 195, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213 215 196, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214 216 197, 198, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215 217 198, 199, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216 218 199, 200, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217 219 200, 201*, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218 220 200, 202, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219 221 201, 203, 204, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220 222 202, 204, 205, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221 223 203, 205, 206, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222 224 204, 206, 207, 208, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223 225 205, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224 226 206, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225 227 207, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226 228 208, 209, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227 5-8 TM051 - Rev. 5.8 DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem Glossary 229 209, 210, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228 230 210, 211, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229 231 212, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230 232 213, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231 233 214, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232 234 215, 216, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233 235 216, 217, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234 236 217, 218, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235 237 218, 219, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236 238 219, 220, 221, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237 239 220, 221, 222, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238 240 220, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239 241 221, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240 242 222, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241 243 223, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242 244 224, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243 245 225, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244 246 226, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245 247 227, 228, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246 248 228, 229, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247 249 229, 230, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248 250 230, 231, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249 TM051 - Rev. 5.8 5-9 Glossary DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem 251 231, 232, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250 252 233, 234, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251 253 234, 235, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252 254 235, 236, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253 255 236, 237, 238, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254 * Note: T1 Framing not supported (IBS, Drop & Insert). 5-10 TM051 - Rev. 5.8 DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem TM051 - Rev. 5.8 Glossary 5-11 DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem Glossary Glossary A A Ampere AC Alternating Current ADC Analog to Digital Converter AGC Automatic Gain Control AIS Alarm Indication System. A signal comprised of all binary 1s. AMSL Above Mean Sea Level ANSI American National Standards Institute ASCII American Standard Code for Information Interchange ASIC Application Specific Integrated Circuit ATE Automatic Test Equipment B BER Bit Error Rate BERT Bit Error Rate Test Bit/BIT Binary Digit or Built-In Test BITE Built-In Test Equipment bps Bits Per Second BPSK Binary Phase Shift Keying Byte 8 Binary Digits C C Celsius CATS Computer Aided Test Software CA/xxxx Cable Assembly CD-ROM Compact Disk – Read Only Memory CLK Clock cm Centimeter COM Common CPU Central Processing Unit CRC Cyclic Redundancy Check. A system of error checking performed at the transmitting and receiving stations. CW Continuous Wave C/N Carrier to Noise Ratio TM051 - Rev. 5.8 G-1 Glossary DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem D DAC Digital to Analog Converter dB Decibels dBc Decibels Referred to Carrier dBm Decibels Referred to 1.0 milliwatt DC Direct Current DCE Data Communications Equipment Demod Demodulator or Demodulated DPLL Digital Phase Locked Loop DTE Data Terminal Equipment DVB Digital Video Broadcast D&I Drop and Insert E Eb/N0 Ratio of Energy per bit to Noise Power Density in a 1 Hz Bandwidth. EEPROM Electrically Erasable Programmable Read Only Memory EIA Electronic Industries Association EMI Electromagnetic Interference ESC Engineering Service Circuits ET Earth Terminal F F Fahrenheit FAS Frame Acquisition Sync. A repeating series bits which allow acquisition of a frame. FCC Federal Communications Commission FEC Forward Error Correction FIFO First In, First Out FPGA Field Programmable Gate Arrays FW Firmware G g Force of Gravity GHz Gigahertz GND Ground G-2 TM051 - Rev. 5.8 DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem Glossary H HSSI High Speed Serial Interface HW Hardware Hz Hertz (Unit of Frequency) I IBS Intelsat Business Services IDR Intermediate Data Rate I/O Input/Output IEEE International Electrical and Electronic Engineers IESS INTELSAT Earth Station Standards IF Intermediate Frequency INTELSAT International Telecommunication Satellite Organization ISO International Standards Organization J J Joule K Kbps Kilobits per Second Kbps Kilobytes per Second kg Kilogram kHz Kilohertz Ksps Kilosymbols per Second L LCD Liquid Crystal Display LED Light Emitting Diode LO Local Oscillator TM051 - Rev. 5.8 G-3 Glossary DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem M mA Milliampere Mbps Megabits per Second MFAS Multi-Frame Acquisition Sync. See FAS. MHz Megahertz MIB Management Information Base Mod Modulator or Modulated ms Millisecond M&C Monitor and Control N NC Normally Closed NO Normally Open ns Nanoseconds NVRAM Non-Volatile Random Access Memory N/C No Connection or Not Connected O OQPSK Offset Quadrature Phase Shift Keying P PC Personal Computer PLL Phase Locked Loop ppb Parts per Billion ppm Parts per Million P/N Part Number Q QAM Quadrature Amplitude Modulation QPSK Quadrature Phase Shift Keying G-4 TM051 - Rev. 5.8 DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem Glossary R RAM Random Access Memory RF Radio Frequency ROM Read Only Memory rms Root Mean Square RU Rack Unit. 1 RU = 1.75” Rx Receive (Receiver) RxD Receive Data R-S Reed-Solomon Coding. Reed-Solomon codes are block-based error correcting codes with a wide range of applications in digital communications and storage. S SEQ Sequential SYNC Synchronize T TBD To Be Designed or To Be Determined TM Technical Manual TPC Turbo Product Codes TRE Trellis Tx Transmit (Transmitter) TxD Transmit Data U UART Universal Asynchronous Receiver/Transmitter UUT Unit Under Test V V Volts VAC Volts, Alternating Current VCO Voltage Controlled Oscillator VDC Volts, Direct Current VIT Viterbi Decoding TM051 - Rev. 5.8 G-5 Glossary DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem WXYZ W Watt Misc. µs Microsecond Ω Ohms 16QAM 16 Quadrature Amplitude Modulation 8PSK 8 Phase Shift Keying G-6 TM051 - Rev. 5.8
Source Exif Data:
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