UTY4422 001A Prelim 001G
User Manual: UTY4422-001G
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Instruction Manual UNITY4422™ MPEG VIDEO INTEGRATED RECEIVER DECODER Data, drawings, and other material contained herein are proprietary to Wegener Communications, Inc., and may not be reproduced or duplicated in any form without the prior permission of Wegener Communications, Inc. When ordering parts from Wegener Communications, Inc., be sure to include the equipment model number, equipment serial number, and a description of the part. In all correspondence with Wegener Communications, Inc., regarding this publication, please refer to UTY4422-001G. Note: Features of the product described herein are covered by U.S. Patent # 4,985,895. First Edition: April 1999 Revised: August 2002 TECHNOLOGY PARK / JOHNS CREEK 11350 TECHNOLOGY CIRCLE DULUTH, GEORGIA 30097-1502 (770) 814-4000 FAX (770) 623-0698 Page 2 This Page Intentionally Left Blank UTY4422-001 Page 2 of 74 Page 3 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. CAUTION As this unit is intended to interface with other electrical/electronic systems, proper engineering practices must be adhered to during installation and check-out. All AC power and ground must be installed in accordance with National Electric Code Standards as to conductor size and limitations (see NFPA 70, articles 200280, as amended, if required), and lightning protection must be provided. All RF interconnections must be properly shielded to prevent ingression or egression of potential interfering sources to existing services. Any damage to this unit caused by improper wiring/interconnections will void any warranty extended. WARRANTY All Wegener Communications products are warranted against defective materials and workmanship for a period of one year after shipment to customer. Wegener Communications' obligation under this warranty is limited to repairing or, at Wegener Communications' option, replacing parts, subassemblies, or entire assemblies. Wegener Communications shall not be liable for any special, indirect, or consequential damages. This warranty does not cover parts or equipment which have been subject to misuse, negligence, or accident by the customer during use. All shipping costs for warranty repairs will be prepaid by the customer. There are no other warranties, express or implied, except as stated herein. Page 3 of 74 UTY4422-001 Page 4 This Page Intentionally Left Blank UTY4422-001 Page 4 of 74 Page 5 Table of Contents SECTION 1 - GENERAL INFORMATION Paragraph 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 Title Page General ..................................................................................................... Introduction .............................................................................................. Unpacking and Inspection ........................................................................ Installation Instructions ............................................................................ 1.4.1 Elevated Operating Ambient ........................................................ 1.4.2 Reduced Air Flow ........................................................................ 1.4.3 Mechanical Loading ..................................................................... 1.4.4 Circuit Overloading ...................................................................... 1.4.5 Reliable Earthing .......................................................................... Physical Environment ............................................................................... Security Labels ......................................................................................... Physical Specifications ............................................................................. Technical Support ..................................................................................... Manuals .................................................................................................... 9 9 9 9 9 10 10 10 10 10 10 11 11 12 SECTION 2 - SYSTEM CONFIGURATION 2.1 2.2 2.3 Unit Overview .......................................................................................... Block Diagram Discussion ....................................................................... Specifications ............................................................................................ 2.3.1 L-Band Tuner ............................................................................... 2.3.2 QPSK Demodulator ...................................................................... 2.3.3 Transport DEMUX ....................................................................... 2.3.4 System Processor .......................................................................... 2.3.5 Auxiliary Data Processing ............................................................ 2.3.6 Composite Video Encoder ............................................................ 2.3.7 Video Specifications ..................................................................... 2.3.8 Audio Specifications .................................................................... 2.3.9 Serial ASYNC Data, Monitor and Control of IRD ...................... 2.3.10 Option Modules for Expansion Ports ........................................... 2.3.11 AC Power ..................................................................................... 2.3.12 LNB DC power ............................................................................ 2.3.13 Four Input / One Output RF Switch (Optional) ........................... 2.3.13.1 Description .................................................................... 2.3.13.2 Electrical Characteristics .............................................. Page 5 of 74 13 13 15 15 15 16 16 16 16 17 17 18 18 18 18 18 18 19 UTY4422-001 Page 6 Table of Contents (continued) Paragraph 2.4 2.5 2.6 Title Page Local Controls and Indicators .................................................................. 2.4.1 Front Panel ................................................................................... 2.4.1.1 Front Panel Display ....................................................... 2.4.1.2 Front Panel Keypad ....................................................... 2.4.1.3 Indicator LED’s ............................................................. 2.4.2 Rear Panel ..................................................................................... 2.4.2.1 Standard DVB Synchronous Interface .......................... External Inputs and Outputs ..................................................................... 2.5.1 Balanced Audio Outputs .............................................................. 2.5.2 FCC-Mandated Suppression of Radiated Emissions .................... 2.5.3 Alarm Relay and Addressable Contact Closures ......................... 2.5.4 AES/EBU Audio Connector Pinout ............................................. Expansion Card Configuration ................................................................. 2.6.1 Balanced Audio Expansion Card ................................................. 2.6.1.1 Audio Card Jumper Configuration ................................ 2.6.1.2 Audio Card Label Instructions ...................................... 2.6.2 SYNC or ASI Output Data Card Jumper Configuration .............. 19 19 19 19 20 20 20 21 22 22 22 23 26 26 26 26 27 SECTION 3 – OPERATION 3.1 3.2 3.3 3.4 3.5 3.6 Modes of Operation .................................................................................. 3.1.1 Power Up ...................................................................................... 3.1.2 Boot Fail ....................................................................................... 3.1.3 Alarm, Warning, & Normal .......................................................... LED & Alarm / Warning Conditions ....................................................... 3.2.1 Carrier (Green) ............................................................................. 3.2.2 RF Level (Green) .......................................................................... 3.2.3 MPEG (Green) .............................................................................. 3.2.4 Cue (Green) .................................................................................. 3.2.5 COMPEL (Green) ........................................................................ 3.2.6 Authorized (Green) ....................................................................... 3.2.7 Alarm (Red) .................................................................................. 3.2.8 Warning (Amber) ......................................................................... Relays ....................................................................................................... Program Selection .................................................................................... Audio Handling ........................................................................................ Sources of Control .................................................................................... 3.6.1 COMPEL™ .................................................................................. 3.6.2 Terminal ....................................................................................... UTY4422-001 Page 6 of 74 29 29 29 29 30 30 30 30 30 30 30 31 31 32 32 33 33 33 33 Page 7 3.6.3 3.6.4 Modem .......................................................................................... PAL / NTSC Selection ................................................................. 33 33 Table of Contents (continued) Paragraph 3.7 3.8 3.9 Title Page 3.6.5 Display / Push Buttons ................................................................. Serial Port - Command Syntax ................................................................. Receiver Functions ................................................................................... 3.8.1 Perms, Temps, Searching & Settings .......................................... 3.8.2 Signal Quality Monitoring ........................................................... 3.8.3 Frequency Tagging ...................................................................... Display / Push Buttons ............................................................................. 3.9.1 Overview ...................................................................................... 3.9.2 Push Button Functions .................................................................. 3.9.3 E-mail ........................................................................................... 34 34 36 36 37 38 38 38 39 42 Appendix A - Terminal / Modem Commands A1.0 A1.1 Status Commands ..................................................................................... A1.0.1 H (Help) ..................................................................................... A1.0.2 R (Report) .................................................................................. Control Commands ................................................................................... A1.1.1 ABORT ...................................................................................... A1.1.2 ADDS ........................................................................................ A1.1.3 DELS ......................................................................................... A1.1.4 MUTE ........................................................................................ A1.1.5 OH ............................................................................................. A1.1.6 PC .............................................................................................. A1.1.7 PERM ........................................................................................ A1.1.8 PERMCH ................................................................................... A1.1.9 PW ............................................................................................. A1.1.10 RE .............................................................................................. A1.1.11 SETAUDIO ............................................................................... A1.1.12 SETLNB .................................................................................... A1.1.13 SETTIMEOUT .......................................................................... A1.1.14 SNR ........................................................................................... A1.1.15 TEMP ......................................................................................... A1.1.16 TEMPCH ................................................................................... A1.1.17 UNMUTE .................................................................................. 45 45 45 46 46 46 46 46 47 47 47 47 47 47 47 48 48 48 48 48 48 Appendix B - Front Panel Display B1.1 B1.2 B1.3 Home Screen ............................................................................................ Email ........................................................................................................ Hardware Setup ........................................................................................ Page 7 of 74 49 49 50 UTY4422-001 Page 8 B1.4 B1.5 B1.6 Status Reports ........................................................................................... Version ..................................................................................................... Navigation Help ....................................................................................... Table of Contents (continued) APPDX Title 54 62 64 Page C Glossary of Terms .................................................................................. 65 D RMA Request Form ................................................................................ 67 LIST OF TABLES Table 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Title Page Physical Specifications............................................................................ Tuner Specifications................................................................................ QPSK Demodulator Requirements ......................................................... Video Resolution Requirements.............................................................. Video Specifications ............................................................................... Audio Specifications ............................................................................... Serial ASYNC Port Requirements .......................................................... RF Switch Characteristics ....................................................................... Front Panel LED's ................................................................................... Serial 1 and Serial 2 Port Pin-outs .......................................................... Input and Output Connectors .................................................................. Analog Audio Channel 1 and Channel 2 Connector Pinouts .................. AES/EBU Digital Audio Pinouts ............................................................ LED and Alarm Conditions..................................................................... Audio Handling ....................................................................................... Serial Port Device Combinations ........................................................... Serial Port Settings ................................................................................. Serial Port Operation............................................................................... Settings Parameters ................................................................................. Group Settings......................................................................................... IRD Signal Quality.................................................................................. Display Modes......................................................................................... Push Button Functions ............................................................................ LC Display Menus .................................................................................. 11 15 16 16 17 17 18 19 20 20 21 22 23 30 33 34 34 35 36 37 37 38 39 40 LIST OF ILLUSTRATIONS Figure 1 2 3 4 Title Page UNITY4422 Block Diagram ................................................................... Ferrite Bead Installation .......................................................................... UNITY4422 Front Panel ......................................................................... UNITY4422 Rear Panel .......................................................................... UTY4422-001 Page 8 of 74 14 24 25 25 Page 9 SECTION 1 GENERAL INFORMATION 1.1 GENERAL The purpose of this manual is to describe the proper installation and operation of the Wegener Communications UNITY4422 MPEG Video Integrated Receiver Decoder. 1.2 INTRODUCTION The UNITY 4422 IRD is an integrated receiver/decoder designed to receive SCPC or MCPC DVB-compliant digital video signals transmitted by satellite. These include the new 4:2:0 and 4:2:2 chroma formats, as well as the traditional 4:3 and new 16:9 aspect ratios. The input to the IRD is an L-band (950-2150 MHz) RF signal which is processed to produce NTSC or PAL video, audio, e-mail output, and electronic-relay cueing signals. The IRD is fully networkcontrolled via the Wegener Communications, Inc. (WCI) COMPEL control system. The optional decryption feature for the IRD allows for use of WCI conditional access. Authorization of each IRD is under network control. In addition to network control, the IRD features a front-panel LCD interface for gathering local status information. In addition, limited control of the IRD (if allowed by the COMPEL network) may be implemented via serial port, connecting either to a local terminal (or via phone modem) to a remote terminal. The IRD has expansion ports for up to two add-in modules. Contact the Wegener Sales Department about available options. 1.3 UNPACKING AND INSPECTION Carefully unpack the unit and inspect it for obvious signs of physical damage which might have occurred during shipment. Any damage claims must be reported to the carrier immediately. Be sure to check the package contents carefully for important documents and materials. 1.4 INSTALLATION INSTRUCTIONS To avoid damage to this and other equipment, or personal injury, the following items should be strictly observed. 1.4.1 Elevated Operating Ambient If equipment is installed in a closed or multi-unit rack assembly, the operating ambient of the rack may be greater than the room ambient. Therefore, considerations should be given to the TMRA, or Temperature inside the Mounting Rack, and not just inside the roomThe statements on the second line tell which devices can be connected to Serial Port 2 when the device on the top line is connected to Serial Port 1. . Page 9 of 74 UTY4422-001 Page 10 1.4.2 Reduced Air Flow Installation of the equipment in a rack should be such that the amount of air flow required for safe operation of the equipment is not compromised. 1.4.3 Mechanical Loading Mounting of equipment in a rack should be such that a hazardous condition is not achieved due to uneven loading. 1.4.4 Circuit Overloading Consideration should be given to the connection of the equipment to the supply circuit and the effect that overloading of circuits could have on overcurrent protection and supply wiring. Appropriate consideration of equipment nameplate ratings should be used when addressing this concern. 1.4.5 Reliable Earthing Reliable earthing of rack-mounted equipment should be maintained. Particular attention should be given to supply connections other than direct connection to the Branch (use of power strips). 1.5 PHYSICAL ENVIRONMENT See specific statements in Section 1.4. Mount the UNITY4422 IRD in a standard EIA 19-inch equipment rack located in a clean, dry environment, and do not place unsupported equipment on the unit. Make sure that total rack power consumption does not exceed the limits of the AC branch circuit, and that a reliable earth safety ground is maintained. The unit will meet the full 10-40oC operating temperature specification only if adequate clearance around vent-holes is provided. The units may be arranged without empty space between them, as long as enough rack ventilation is provided to prevent severe heat buildup. Please note the maximum per-unit power dissipation of 45 watts. 1.6 SECURITY LABELS The UNITY4422 uses security labels over some of the screws. There are no user serviceable components within the unit, and tampering with the security labels or opening the units will void your warranty. If you have questions, contact Wegener's customer service department at the address, phone, or fax numbers listed in Section 1.8 of this manual. * * * WARNING * * * When connecting cables to “F” type connectors apply a force of no more than 12 inch lb. (Finger tight). Avoid connecting adapters directly to “F” type connectors. Use at minimum a 1 foot flexible extension cable between “F” type connectors and adapters. UTY4422-001 Page 10 of 74 Page 11 1.7 PHYSICAL SPECIFICATIONS The operating temperature of the IRD is +10°C to +40°C in still air with unblocked side vents. (The unit is fan-cooled.) Table 1. Physical Specifications Parameter Description Size 19”W x 1.75”H x 13.75”D Weight 10.5 Pounds Operating Temperature +10°C to +40°C Power Requirements 115VAC, 60Hz, 0.8A Typ., or 230VAC, 50Hz, 0.5A Typ. 1.8 TECHNICAL SUPPORT In the event the unit fails to perform as described, contact Wegener Communications Customer Service at (770) 814-4057, FAX (678) 624-0294, or e-mail “service@wegener.com”. To return a product for service: 1. Obtain a Return Material Authorization (RMA) number by completing and faxing a copy of the RMA Form (See Appendix D, Page 67.) to (678) 624-0294. You may e-mail the same information instead to: service@wegener.com 2. Plainly write the RMA number on the outside of the product shipping container. NOTE: Writing the RMA number on the outside of the shipping container will help us to return your equipment to you sooner. Thank you. 3. Return the product, freight prepaid, to the address below: Service Department RMA# ________ Wegener Communications, Inc. 359 Curie Drive Alpharetta, GA 30005 NOTE: All returned material must be shipped freight prepaid. C.O.D. shipments will not be accepted. Please contact Customer Service at one of the numbers above if you have any questions regarding service procedures. Page 11 of 74 UTY4422-001 Page 12 1.9 MANUALS If you have any suggestions concerning this, or any Wegener Manual, please E-mail them to manuals@wegener.com. If you would rather mail them, please do so to the address shown below. Our preference is that you copy the page in question, mark it up, and fax or mail us the copy. We do appreciate constructive criticism. The Fax Number is 770-497-0411. Attn: Manuals Wegener Communications, Inc. 11350 Technology Circle Duluth, GA 30097 UTY4422-001 Page 12 of 74 Page 13 SECTION 2 SYSTEM CONFIGURATION 2.1 UNIT OVERVIEW The UNITY 4422 IRD features several separate hardware components: The DC switching power supply, the main motherboard, an L-band DVB receiver, front-panel keypad controller card, a front-panel LCD assembly, and the optional L-band RF switch. The DC switching power supply provides all internal regulated DC power. When present, the L-band RF switch is installed in the Module 2 expansion slot, and provides network or (if allowed by the network) local user selection of up to four separate feeds. The selected RF feed output is connected to the DVB-compliant L-band receiver card. This card tunes and demodulates the input QPSK carrier, and then applies two layers of error correction decoding. Its output is the original multiplex MPEG transport stream which was input to the uplink IF modulator. This stream then feeds the main motherboard, which demultiplexes out the selected video and audio elemental streams. These are, in turn, de-compressed and converted back to the original analog source material for output. Meanwhile, the user may query the IRD using the front-panel keypad for input and the LCD to read the returned status information. 2.2 BLOCK DIAGRAM DISCUSSION Refer to Figure 1 (Page 14) for the following discussion. The DVB-compliant receiver card demodulates the incoming QPSK carrier. It implements one of five possible FEC rates. The resulting bit stream is parsed back into a byte stream and the MPEG sync is detected. This aligns a de-interleaver and then the following Reed-Solomon FEC decoder. The decoded byte stream is output to the main board. The input to the main board is the multiplexed MPEG2 transport stream. If encryption is active, then the decryption function is executed. The resulting “clear” transport stream is then fed to the transport demultiplexer. This device selects the component elemental stream for selected video and audio programs, as well as the network control data streams. The selected video data is passed to an MPEG video decoder, which converts the signal to linear digital video. This is then converted to analog NTSC/PAL in a final encoder for output. Meanwhile, the selected MPEG compressed audio stream is also routed to a combined decompression and digital-to-analog converter IC. The output is one stereo pair of audio signals (L and R) on Channel 1 at the back panel. In addition to the first stereo pair, a digital signal processor monitors and demultiplexes out another selected digital audio stream, which is also decoded and output as the stereo pair on Channel 2 at the back panel. Page 13 of 74 UTY4422-001 UTY4422-001 Page 14 of 74 --> --> --> --> --> --> --> --> --> --> --> 20MHz BUFFER RATE FIFO PLL SRAM 32K X 8 32K X 8 32K X 8 MPEG2 TRANSPORT 27 Mhz VCXO Data MPEG2 A 16 D DEMUX I2C BUS DB9 I/O PORT TO FRONT PANEL DISPLAY & PUSHBUTTONS RJ11 I2C BUS FRAM 2048 X 8 SRAM 128K X 8 128K X 8 (32K X 8) (32K X 8) L_Addr Addr/Data Control CLK_EN CS I2C BUS AUDIO 2 IRQ / CTL 128K X 8 128K X 8 FLASH 2 BUS I2C BUS I2C J1 SDI VIDEO OUT RESET DB9 SERIAL PORT ALARM RELAY LNB POWER ON WATCHDOG RESET CPU LEFT & RIGHT LEFT & RIGHT COMPOSITE VIDEO CONTACT CLOSURE R/X CONTROL AUDIO DEC 2 AUDIO DEC 1 VIDEO ENCODER D1 VIDEO AUDIO OUT 1 AUDIO OUT 2 128K X 8 128K X 8 FLASH 1 INT AES/EBU VIDEO DEC 256K X 16 256K X 16 I2C BUS J12 DB-9 A DRAM 256K X 16 256K X 16 DECRYPTION DUART AUDIO RF SWITCH EXPANSION BUS CONNECTORS I2C BUS AUDIO 3&4 5&6 HBUS MPEG2 A/V I2C BUS C 256K X 16 DRAM 256K X 16 AUDIO 2 23 HS BUS I2C BUS DSP CTL Control R/X CONTROL Address SECURE MC DECRYPTION +3.3V +3.3V LNB +12V -12V +5V +24V GND FLASH (DEBUG) REG REG REG MPEG2 TRANSPORT R/X DATA IN EXPA (Audio) D1 (Video) XC5204 80C51XA CPU_2096, TMS2490 DSP_2096 CS4920_1, CS4920_2 CL9100 CL9100 XC5202 EXPM (MPEG2) --> DSP_320C203 +5V +5V +24V POWER SUPPLY R/X CONTROL CHCLK (7.5 MHz) Distributions: CHCLKA --> DVB Receiver Module CHCLKB --> CL9110 CHCLKC --> XC5202 ECLK --> EXPM 27M1A 27M1D1 27M2 27M3 27M4 27M5 27M6 VCLK GCLK 27M7 27M1M TX1 DSP 27 MHz Clock Distributions: 20.000 MHZ CLOCK DVB RECEIVER MODULE (OR DECRYPTION EXPANSION) 120 VAC Page 14 Figure 1. UNITY4422 BLOCK DIAGRAM Page 15 The control system on the main board is run by the main host processor. This processor interfaces with the COMPEL™ network as well as local users and then controls and monitors the unit’s operations. To do its job, this processor accesses the control data streams recovered from the main transport demultiplexer. One of these may be a conditional access data stream (if used). The main processor sends this data to a separate secure microprocessor, which looks to see if its unit serial number is authorized to receive the broadcast signal and, if so, recovers the secret keys for decrypting the incoming encrypted transport stream. Meanwhile, the main host processor also communicates with several peripheral devices. It manages the data passed to/from the front-panel keypad controller (which lights status LED's, manages an LCD display, and reads back keypresses). It manages two serial ports that allow for use of a terminal, modem, printer, or auxiliary data device as well as the display and printing of local e-mail. Additionally, it controls the L-band receiver daughtercard and any installed options Modules (such as the RF switch). For maximum flexibility, and to make value-added upgrades easily possible, the operating unit software is stored in flash memory and may be dynamically replaced via the local serial port or from the satellite network control channel. 2.3 SPECIFICATIONS The receiver uses an integrated tuner and QPSK demodulator assembly. 2.3.1 L-Band Tuner The tuner specifications are shown below. Table 2. Tuner Specifications Parameter Specification Input Frequency Range 950 - 2150 MHz Input Level Range -20 dBm total signal power down to -135 dBm/Hz signal power spectral density Maximum Aggregate Input Power -5 dBm Input Impedance 75 ohms, unbalanced Input VSWR < 2.5:1, typ. 2.0 Input Noise Figure 8 dB MAX at minimum input level L.O. Leakage at Input -55 dBm 2.3.2 QPSK Demodulator The QPSK demodulator’s input data rate is variable over the range shown in Table 3 (Page 16), with a minimum transport-rate step size of 1 kbps. In Table 3, “Threshold Eb/No” is that value of Eb/No at which the average number of uncorrected FEC frames exceeds one per minute. Page 15 of 74 UTY4422-001 Page 16 Table 3. QPSK Demodulator Requirements Inner Code Rate Symbol Rate Transport Rate Threshold Eb/No 1/2 2.71-30 Msps 2.5-27.647 Mbps 4.0 2/3 2.04-30 Msps 2.5-36.863 Mbps 5.0 3/4 1.81-30 Msps 2.5-41.471 Mbps 5.5 5/6 1.63-30 Msps 2.5-46.078 Mbps 6.0 7/8 1.55-30 Msps 2.5-48.382 Mbps 6.4 2.3.3 Transport DEMUX The transport demux is used to extract the desired video and audio streams from the multiplexed data stream. 2.3.4 System Processor The main system processor is an extended architecture processor, and uses flash memory for microcode storage with download capability via either terminal or satellite channel. The unit also has an MPEG2 video processor ASIC, and an audio processor ASIC. 2.3.5 Auxiliary Data Processing An asynchronous user-data stream embedded in the transport stream may be routed to SERIAL 1 or SERIAL 2 ports under user or network control. 2.3.6 Composite Video Encoder The IRD supports the following video resolutions: Table 4. Video Resolution Requirements UTY4422-001 NTSC PAL 720H x 480V (Full Resolution) 720H x 576V 544H x 480V (3/4 Resolution) 544H x 576V 480H x 480V 480H x 576V 352H x 480V (1/2 Resolution) 352H x 576V 352H x 240V 352H x 288V Page 16 of 74 Page 17 2.3.7 Video Specifications NTSC video performance is specified below at a 9 Mbps video PES rate, 720Hx480V resolution. Table 5. Video Specifications Parameter Production Specification Signal Type Output Level Output Impedance Multiburst NTSC NTSC 1.0 Vp-p, ± 2% 75 Ohms From 0.5 to 4.2 MHz: ≤+0/−1.0 dB ≤ 4 IRE ≤ 1.5° ≤ ± 4 IRE ≤ ± 26 nS ≤ 1 IRE p-p ≤ 3 IRE p-p PAL 1.0 Vp-p, ± 2% 75 Ohms From 0.5 to 4.8 MHz: ≤+0/−1.2 dB ≤ 4 IRE ≤ 1.5° ≤ ± 4 IRE ≤ ± 26 nS ≤ 1 IRE p-p ≤ 3 IRE p-p ≥ 56 dB ≥ 56 dB Differential Gain Differential Phase L/C Gain Inequality L/C Delay Inequality Line Time W-form Distortion Field Time W-form Distortion Video S/N Weighted 2.3.8 Audio Specifications Audio performance is specified below at a compressed-audio PES rate of 256 kbps. Table 6. Audio Specifications Parameter Specification (each channel of stereo pair) Output Level-MAX PPL +18.0 ±0.5 dBm into 600 ohms, at 0 dB attenuation level Balanced: < 60 Ohms 20Hz to 20 kHz, + 0.5/-1.5 dB 50Hz to 15 kHz, ± 0.5 dB 50 Hz to 15 kHz, ≤± 2°from linear phase ≤ 0.5 % Impedance Frequency Response Phase accuracy Harmonic Distortion (1 kHz test-tone, 1 dB below PPL) S/N Ratio Dynamic Range A/V Sync m 80 dB (22 Hz to 20 kHz) unweighted 16 bits ≤± 50 mS error Page 17 of 74 UTY4422-001 Page 18 2.3.9 Serial ASYNC Data, Monitor and Control of IRD Two serial ports (SERIAL 1 and 2) for data to/from the IRD have the following characteristics: Table 7. Serial ASYNC Port Requirements Parameter Specification Signal Type Serial Asynchronous Character Data Levels RS-232 Mode Always 8 data-bits, one start, one stop-bit, half-duplex. Pin-outs DCE to AT-compatible serial port, 3-wire subset (Rxd, Txd, and Ground) without handshake lines 2.3.10 Option Modules for Expansion Ports The IRD has two expansion slots - one high speed and one low speed. The high speed expansion port provides the transport layer multiplexed stream while the low speed expansion port provides the filtered packet data. An I2C bus provides control for option modules. The specifications for individual modules are included in documentation for the module. 2.3.11 AC Power The unit features a universal-input power supply. AC line is fed into a standard IEC jack. The nominal inputs are 115 or 230 VAC ± 10% at 50-60 Hz ± 2%. The total AC current consumption with the 4:1 RF switch option and max LNB DC load is 0.8A at 115 VAC, and 0.5A at 230 VAC. 2.3.12 LNB DC Power The unit may feed DC power to an external antenna-mounted LNB using either the RF-In connector’s center-pin or a terminal on the rear-panel terminal strip (with an external DC power inserter). The nominal voltage supplied is +17 to +24 VDC, while the maximum load current is 250 mA. The output is short-circuit protected by a thermal fuse. An internal jumper (J27) is used to enable/disable DC power on the RF-In center-pin. Once that jumper has been set, the LNB power can be turned on via the front panel menu. 2.3.13 Four Input / One Output RF Switch (Optional) 2.3.13.1 Description The module is normally installed into the MODULE 2 option-slot position on the back of the parent IRD. It allows the IRD to select one of four antenna / LNB inputs when its RF OUTPUT jack is connected via a 75-ohm coax cable to the IRD RF INPUT. There is no power pass for LNB DC power. (DC for the LNB is provided on the UTY4422 rear terminal strip and requires an external DC power inserter. No DC voltage is applied to any F connector.) The input and output RF connectors are Type-F jacks, and they are located on the option module rear panel. UTY4422-001 Page 18 of 74 Page 19 No user-accessible controls or indicators are located on the module. 2.3.13.2 Electrical Characteristics The characteristics described in Table 8 are measured at a -25 dBm input level. Table 8. RF Switch Characteristics 2.4 Parameter Specification Input Isolation, Port to Port (all ports terminated) > 35 dB, 950-1450 MHz ≥ 24 dB, >1450-2150 MHz Input VSWR (selected port, 75-ohm system) ≤ 2.5:1, 950-1450 MHz ≤ 3.5:1, >1450-2150 MHz Insertion Loss ≤ 1.5 dB, 950-1450 MHz ≤ 4 dB, >1450-2150 MHz LOCAL CONTROLS AND INDICATORS 2.4.1 Front Panel See Figure 3 (Page 25) for a view of the front panel. 2.4.1.1 Front Panel Display The front-panel includes a 2-line by 20-character display to support the local user monitor/control interface. See Table 24 (Page 40), and Appendix B for details on the messages displayed there, as well as the menus supporting the keypad interface described in Section 2.4.1.2. 2.4.1.2 Front Panel Keypad The front-panel includes a keypad for user input. The keys are right, left, up, down arrows and SELECT, and ENTER. See Sections 2.4.1.2 and 3.9, and Appendix B for details on their use. Page 19 of 74 UTY4422-001 Page 20 2.4.1.3 Indicator LED’s Table 9. Front Panel LED’s* Label Mnemonic Meaning (See Section 3.2) Color CARRIER Carrier Tracking indication Green MPEG Main MPEG mux indication Green CUE Contact-closure activation Green AUTH Authorized to receive COMPEL-CA program Green RF LEVEL Signal Level Warning Green COMPEL™ Network control indication Green WARNING General warning indication Yellow ALARM Link lost or other major alarm indication Red *For an explanation of the Front Panel LED’s, see Section 3.2 2.4.2 Rear Panel See Figure 4 (Page 25) for a view of the rear panel, where the following controls are located. 2.4.2.1 Standard DVB Synchronous Interface Table 10. Serial 1 and Serial 2 Port Pin-outs SERIAL 1 Pin # B1 B2 B3 B4 B5 B6 B7 B8 B9 SERIAL 2 Signal DCD (Internally pulled high) RXD (Output TXD (Input) DTR (Not connected) GNDS DSA (Internally pulled high) RTS (Not connected) CTS (Internally pulled high) RI UTY4422-001 Pin # A1 A2 A3 A4 A5 A6 A7 A8 A9 Page 20 of 74 Signal DCD (Internally pulled high) RXD (Output) TXD (Input) DTR (Not connected) GNDS DSA (Internally pulled high) RTS (Not connected) CTS (Internally pulled high) RI Page 21 2.5 EXTERNAL INPUTS AND OUTPUTS Table 11. Input and Output Connectors Name Description RF Switch (Optional) Four female Type-F RF INPUTS (1-4) and one female Type-F RF OUTPUT (no powered ports) RF IN Female Type F, L-band input, 950-2150 MHz VIDEO OUT 75 ohm female BNC, NTSC composite video output BALANCED AUDIO CH1 L & R Female 9 pin D Connector BALANCED AUDIO CH2 L & R Female 9 pin D Connector SDI (D1) VIDEO Female BNC AES/EBU Female 9 pin D Connector SERIAL 1 Female 9 pin D Connector (Printer, Modem or Terminal) (See Table 12 for pin-outs.) SERIAL 2 Female 9 pin D Connector (Printer, Modem or Terminal) (See Table 12 for pin-outs.) LNB (J27 required) Plug-in terminal strip, LNB DC GND Plug-in terminal strip, LNB DC current return ALARM Plug-in terminal strip, alarm relay contacts CLOSURE 1 Plug-in terminal strip, network-controlled solid-state relay contacts CLOSURE 2 Plug-in terminal strip, network-controlled solid-state relay contacts AC Input AC power connected through a standard IEC connector Page 21 of 74 UTY4422-001 Page 22 Table 12. Analog Audio Channel 1 and Channel 2 Connector Pinouts Channel 1, J5, DB9 Channel 2, J6, DB9 Pin # 1 2 3 4 5 6 7 8 9 Pin # 1 2 3 4 5 6 7 8 9 Signal AUDIO1R+ GNDD AUDIO1RAUDIO1L+ GNDD AUDIO1LNC NC NC Signal AUDIO2R+ GNDD AUDIO2RAUDIO2L+ GNDD AUDIO2LNC NC NC 2.5.1 Balanced Audio Outputs There are two audio channel outputs on the rear panel. Each Channel (Ch1 & Ch2) has a right and left pair. Each of these pairs is a balanced, low-impedance audio output. These are accessed through DB-9 connectors, which plug through the rear panel into the main PWB. Please note that audio should be terminated with 600-ohm loads for correct output levels. 2.5.2 FCC-Mandated Suppression of Radiated Emissions In order to comply with the requirements of FCC Part 15 Subpart B, Class A emissions, please read the following instructions on the protection of all output wiring and cabling: For each alarm or user-controlled relay output THAT IS USED, a single ferrite core must be used for EMI emission suppression. The ferrite cores are supplied in the shipping container along with the Unity4422 IRD. Details on assembly of the ferrite cores on the wiring are shown in Figure 2. Note that each pair of wires must pass through the core twice. Be sure that this is done as close to the removable screw-terminal strip as possible. If minimal slack is used in the outer “turn,” the ferrite core should be properly restrained by the wiring alone. In addition to the above precautions for the wiring to the screw-terminal strips, the user is cautioned to only use high-quality shielded cabling for the SERIAL 1 and SERIAL 2 connectors. 2.5.3 Alarm Relay and Addressable Contact Closures The rear panel has an alarm relay and two solid-state contact closures addressable from the COMPEL™ uplink computer. This relay’s “alarm” conditions are the same as the front-panel ALARM LED. The alarm relay is factory-set so that an alarm condition or the loss of unit power UTY4422-001 Page 22 of 74 Page 23 will cause the rear panel alarm outputs to short together (alarm relay closed). Ratings for the alarm relay and network-controlled closures are 100 mA at 30 VDC. The two contact closures are controlled via the COMPEL command stream from the uplink. See the COMPEL™ Manual for the commands and structure for the relay closures. 2.5.4 AES/EBU Connector Pinout The AES/EBU digital audio is output on a DB-9 connector on the rear of the unit. The pinouts are shown below. Table 13. AES/EBU Digital Audio Pinouts PIN SIGNAL 1 2 3 4 5 6 7 8 9 POS1 POS2 GND GND GND NEG1 NEG2 GND GND Page 23 of 74 UTY4422-001 Page 24 Figure 2. Ferrite Bead Installation MAX 250 mA ALARM G L + - N D N B CLOSURE 1 2 + - + - * * * CAUTION * * * To meet FCC requirements, the alarm and contact closures must have a ferrite bead installed on each pair of wires leading from them. See Section 2.5.2 and Figure 2-2 for instructions on their installation. There are 3 ferrite beads packed with the unit. One of these is for the alarm relay output, and two are for the contact closures. UTY4422-001 Page 24 of 74 MODULE 2 The Digital Broadcasting Platform MODULE 1 RF IN MPEG RF LEVEL COMPEL CARRIER WARNING CUE ALARM AUTH Page 25 of 74 CH 2 BALANCED AUDIO RISK OF ELECTRIC SHOCK DO NOT OPEN RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR CH 1 AVIS: G L N N D B 1 2 CLOSURE + - + CONTACT RATING 0.1A @ 30VDC + - ALARM MAX 250mA Figure 4. UTY4422 Rear Panel MPEG 4:2:2 & 4:2:0 UNITY4422 MPEG-2 IRD Figure 3. UTY4422 Front Panel SERIAL 2 SERIAL 1 OUT VIDEO COMPOSITE AUDIO AES/EBU ENTER OUT VIDEO SDI SELECT WEGENER COMMUNICATIONS 115/230VAC 0.8/0.5A 50/60Hz Page 25 UTY4422-001 Page 26 2.6 EXPANSION CARD CONFIGURATION The purpose of this section is to detail the jumper settings and labeling instructions for the Unity Expansion Cards. 2.6.1 Balanced Audio Expansion Card 2.6.1.1 Audio Card Jumper Configuration Jumper settings – Dotted and Non-dotted. The headers used here have 3 pins, so a jumper connecting 2 of these pins can connect pins 1 & 2 or pins 2 & 3. The “Normal” position of this jumper is marked by a dot on the silkscreen near either pin 1 or pin 3. Dotted Position - Jumpering pin 2, the center pin, to the pin nearest the dot. Non-Dotted Position - Jumpering pin 2 to the pin furthest from the dot. Installing one audio expansion card enables audio channels 3 and 4. You should set jumpers J2, J3, J4, J6, J7, and J8 on this Audio Card to the “dotted” position. Installing a second audio expansion card enables audio channels 5 and 6. Set jumpers J2, J3, J4, J6, J7, and J8 on this Audio Card to the “non-dotted” position. Leave the jumpers on the first audio expansion card in the “dotted” position, which will continue to enable channels 3 and 4 on that card. * * * Caution! * * * When 2 audio expansion cards are installed, one must have the jumpers in the dotted position, and the other must have them in the non-dotted position. Failure to correctly configure the jumpers WILL cause operational problems. Either available module slot may be used with the “non-dotted” card, but that card will be the Channel 5 & 6 card. The “dotted” card will be the Channel 3 & 4 card. Each card should also be labeled appropriately. (See the following section.) 2.6.1.2 Audio Card Label Instructions When a single balanced audio expansion card is installed (In either Module 1 or Module 2 slot), channels 3 and 4 are used. You should set the jumpers on that card to the “dotted” position, and label the Audio Card Bracket as [CH4 CH3]. To label it: 1. Peel the [CH4 CH3] label from the backing. 2. Press the label onto the rear of the Audio Card Bracket, within the blank rectangle provided, or cover existing silkscreen text. UTY4422-001 Page 26 of 74 Page 27 When a second balanced audio expansion card is installed, channels 5 and 6 are used. The second card is installed in the vacant module slot and connected to the first card and the motherboard by a 3-connector cable, rather than the 2-connector cable used with a single card. The second card enables Channels 5 & 6 when the jumpers are set to the “Non-dotted” position. Labeling this card is done like the first card, except it will be labeled [CH 6 CH5]. 2.6.2 Sync or ASI Output Data Card Jumper Configuration * * * Caution! * * * When 2 SYNC or ASI expansion cards are installed, one must have the jumpers in the dotted position, and the other must have them in the non-dotted position. Failure to correctly configure the jumpers WILL cause operational problems. When you install one SYNC or ASI expansion card, set jumper J9 on that card to the “dotted” position. See Section 2.6.1 for details on “Dotted” and “Non-dotted” jumper positions. When installing a second SYNC or ASI expansion card, jumper J9 on that card must be set to the “non-dotted” position. Leave jumper J9 on the first data expansion card set to the dotted position. Page 27 of 74 UTY4422-001 Page 28 This Page Intentionally Left Blank UTY4422-001 Page 28 of 74 Page 29 SECTION 3 OPERATION 3.1 MODES OF OPERATION 3.1.1 Power Up At power up, the unit does a quick checksum test on the EEPROM. If the test passes, the unit then initializes various devices and configures itself according to the EEPROM settings. It then waits for the receiver board to complete its boot-up. When the receiver board boots up, the IRD sends a tune request to the receiver board and the Welcome Banner to the serial port. The IRD then enters alarm mode until all of the alarm conditions are cleared. Total boot-up time is approximately 25 seconds, but may vary somewhat. Also, while in power up mode, each of the Unity 4422’s LED's will FLASH (See Table 14, Page 30.). 3.1.2 Boot Fail If any of the boot fail conditions occur, the unit will enter “boot fail” mode. While in this mode, the unit is essentially dead. All audio and video is muted, the alarm relay is closed, the general purpose relays are all open, and the unit does not attempt carrier acquisitions, etc. 3.1.3 Alarm, Warning, & Normal See Sections 3.2.7 and 3.2.8 for a complete list of alarm/warning conditions and for information on the LED's during these modes. The overall behavior of the IRD is very similar for any of these modes, and the following is a list of their differences: • Alarm and User Relays. See Section 3.3 for details. • Video is alarm frozen if No MPEG Data for less than 5 seconds, No Video for less than five seconds, or in fade mode for less than 10 seconds. • Video is muted for all alarm conditions except Alarming Eb/No. • Audio is muted for all alarm conditions except Alarming Eb/No and No Video Data. • LED's are unique for each of these modes. Page 29 of 74 UTY4422-001 Page 30 3.2 LED & ALARM / WARNING CONDITIONS The following definitions apply throughout this section: Table 14. LED and Alarm Conditions Blink LED is OFF for 1 second, and then blinks on count times (ON for 250 mS and OFF for 250 mS). This overall pattern is continued. Flash ON for 100mS, OFF for 100mS, … Flutter ON for 50 mS, OFF for 50 mS, … AMBER RED and GREEN turned ON at the same time. The UNITY4422 has eight front panel LED's, each of which is described below. 3.2.1 Carrier (Green) ON if receiver board is tracking. 3.2.2 RF LEVEL (Green) ON if RF level is OK and receiver board is tracking a carrier. FLASH if RF level is HIGH or LOW and receiver board is tracking. Otherwise OFF (receiver board is not tracking). 3.2.3 MPEG (Green) ON if synced on MPEG stream. FLASH if no MPEG sync but locked on carrier. Otherwise OFF. 3.2.4 Cue (Green) ON while any relay is closed. Also, relay must be ON for a minimum of 1 second. Otherwise, OFF. 3.2.5 COMPEL™ (Green) FLUTTER if COMPEL addressed to unit within last 5 seconds (keep alive commands are not considered to be addressed to unit). ON if COMPEL Received within last 2 minutes. OFF if COMPEL is not required or unit is not in Tracking mode. Otherwise, FLASH (unit is in Tracking and no COMPEL within last 2 minutes). The COMPEL light will also be on for approximately 2 minutes when the unit is first turned on or reset. 3.2.6 Authorized (Green) ON if authorized for current program and have MPEG sync. This LED will also be ON if program being received is unencrypted. It will FLASH if not authorized for the current program. It will be OFF if no program is available. UTY4422-001 Page 30 of 74 Page 31 3.2.7 Alarm (Red) FLASH if any of following: (see Table 14, Page 30) 1. EEPROM Boot Failure. 2. Receiver board diagnostics Boot failure. 3. Receiver board communications Boot failure. 4. Secure micro / host ID mismatch Boot failure. ON if any of the following: 1. Receiver board run-time failure. 2. Fade mode > 10 seconds. 3. Installation mode > 10 seconds. 4. Carrier table search mode. 5. Header search mode. 6. Satellite search mode. 7. Alarming Eb/No. 8. No MPEG data > 5 seconds and locked on carrier. 9. No video data > 5 seconds and have MPEG sync. 10. Not authorized for current program. 11. Selected program not available. 12. Overheating. Otherwise, OFF When an alarm or warning condition is active, that condition is displayed on the LCD. The IRD will not indicate (either on LED's or LCD) multiple conditions; it will indicate only the most critical condition. Alarm conditions are considered more critical than warning conditions, and the list of alarm and warning conditions shown above and below are listed from most critical (1) to least critical (Item 4 or 12 above). Note that the Alarm LED is only ON when the unit is either overheating or unable to produce video. 3.2.8 Warning (Amber) ON if any of following: 1. E-mail received but not read. (See the Caution, Page 32, and Section 3.9.3, Page 42.) 2. Secure micro run-time failure. 3. Marginal Eb/No and locked on carrier. 4. RF level is HIGH. 5. RF level is LOW. 6. Fade or Installation mode < 10 seconds. 7. No MPEG data < 5 seconds and locked on carrier. Page 31 of 74 UTY4422-001 Page 32 8. No video data < 5 seconds and have MPEG sync. 9. COMPEL required and no COMPEL within last 2 minutes. 10. Selected audio not available. Otherwise, OFF. * * * CAUTION * * * E-mail messages should be read as soon as possible after receipt, because each message will be over-written by the next one. 3.3 RELAYS This IRD supports 1 alarm relay and 2 solid state user relays. The user relays are controlled via COMPEL™ and the modem/terminal interface. Note that the alarm relay is de-energized when the IRD’s power is off and the relay outputs are shorted together. 3.4 PROGRAM SELECTION Programs may be selected by network control and (if allowed by the network) by local user. A multiplexed MPEG transport stream may support some number of separate programs. Each program has a single video and some number of associated audio data streams associated with it in the main transport stream. The programs are designated with a number, but if none is supplied by the selection command (e.g. the ‘*’ designation) the lowest in number order will be selected by the IRD. 3.5 AUDIO HANDLING The selected program (see Section 3.4) has a number of separate compressed-audio data streams associated with it. These are assigned 3-letter mnemonic designations. Any of these may be routed to either the Ch1 or Ch2 stereo outputs on the back of the IRD, but not both at the same time. The selected stream is a stereo or dual-mono signal. It may be routed to the L and R connections in a specific relationship to the original audio connections at the uplink MPEG encoder unit: UTY4422-001 Page 32 of 74 Page 33 Table 15. Audio Handling Stereo Original encoder L and R routed to corresponding L and R outputs on IRD Reverse Stereo Original encoder L routes to IRD R output, while original R routes to the L output 1 on both Original encoder L is routed to both L and R outputs on IRD 2 on both Original encoder R is routed to both L and R outputs on IRD 3.6 SOURCES OF CONTROL The IRD can be controlled via COMPEL™, terminal, modem, and Display / push buttons. Each of these methods of control is explained in the following sections, but you should see the COMPEL manual for a complete explanation of the COMPEL system. 3.6.1 COMPEL™ The COMPEL command stream from the uplink is usually the unit’s primary source of control. This asynchronous stream is mux’ed into the aggregate MPEG data stream at the uplink. 3.6.2 Terminal You may access the terminal command interface by setting Serial Port 1 or Serial Port 2 “device” to “Terminal” (using front panel control, if enabled by your Network Control). Terminal default settings are 19200, N, 8, 1. You may then access the terminal commands if you have a terminal installed. These commands appear on a help screen and are documented in Appendix A of this manual. With the exception of the “R” and “H” commands, they are only available if local control is enabled. 3.6.3 Modem The modem command interface is similar to the terminal interface. That is, it does not use special handshaking or special control characters for this interface, and only supports autoanswer modems. In fact, the IRD does not distinguish between an attached terminal and a modem. To access the modem command interface, the serial port 2 “device” must be set to “Modem” (using front panel control). To access user commands, the user must enter the correct password at the prompt. The user then retains access until the “OH” command is received, or two 10-minute periods pass with no user input. As is the case for the terminal, the user commands are restricted when local control is disabled. 3.6.4 PAL / NTSC Selection The UNITY4422 accepts both PAL and NTSC video. Whether the input is PAL or NTSC is auto-detected, and the appropriate parameters are set under software control. Page 33 of 74 UTY4422-001 Page 34 3.6.5 Display / Push Buttons This interface supports a variety of controls and status displays, including the following: 1. Status. 2. Selecting and configuring the Serial Port devices. 3. Setting the LNB LO's. 4. Front panel email. See the Display / Push Button Menus, Appendix A, for complete details. 3.7 SERIAL PORT - COMMAND SYNTAX The UNITY4422 contains two serial ports. These are labeled Serial Port 1 and Serial Port 2. Each can support a printer, a terminal, a modem, or an auxiliary data device. However, there are restrictions as to what device combinations can be used at one time. There are only 2 rules for this, and they are shown below. (Also, see Table 16, this Page.) 1. The same device type (Printer, terminal/modem, or aux. data) cannot be configured on both ports at the same time. (Terminals and modems are considered the same device type. See Rule 2.) 2. The combination of a terminal on one port and a modem on the other is not allowed. The statements on the second line of Table 16 tell which devices can be connected to Serial Port 2 when the device on the top line is connected to Serial Port 1. Table 16. Serial Port Device Combinations Serial Port 1 Printer Aux. Data Serial Port 2 Any but Printer Any but Aux. Data Terminal Modem Any but Terminal or Modem Any but Terminal or Modem Port Communication is fixed at 1 stop bit and 8 data bits, and there is no handshaking. The serial port’s behavior for each of its device types is shown in the following table. Table 17. Serial Port Settings Device Serial Port Behavior Printer Configured to B, N, 8, 1 (* see note 1 below.). Aux. Data Configured to B, N (* See note 2 below.). Terminal Configured to 19200, N, 8, 1. The unit responds to the terminal/modem commands described in Sections 3.6.1 & 3.6.2, and Appendix A. Modem Configured to B, N, 8, 1 (* see note 3 below.). The unit responds to the terminal/modem commands described in Sec. 3.6.1, 3.6.2 and Apdx A. UTY4422-001 Page 34 of 74 Page 35 Note 1. For Printer: ‘B’ may be 1200, 2400, 4800, 9600, or 19.2k baud; ‘P’ may be ‘O’ for Odd, ‘E’ for Even, or ‘N’ for No parity. Note 2. For Aux Data: ‘B’ may be 1200, 2400, 4800, 9600, 19.2k, or 38.4k baud. ‘P’ may be ‘O’ for Odd, ‘E’ for Even, or ‘N’ for No parity. Note 3. For Modem: ‘B’ may be 9600, or 19.2k baud; parity is always ‘N’ for No parity. * Note: Baud rate and parity are configurable for the Printer, but the serial ports do not support parity for modem applications. Supported baud rates are 1200, 2400, 4800, 9600, 19200, and 38400, while supported parity types are None, Odd, and Even. When a serial port configuration command is received from any control source, the specified configuration is immediately stored for the specified device. The serial port is configured accordingly, whenever the serial_port.device is device when local panel control has been enabled by the satellite program provider. If serial_port.device is device at the time this command is issued, and the configuration differs from the current configuration, the output_buffer is cleared and the port is reconfigured. When connected to a Terminal, the port may also be configured for baud rate, etc. Care should be taken when changing these settings so they agree with the internal terminal settings. If you change the baud rate of the Terminal Port to 9600, you will have to change the terminal baud rate to 9600 before you can communicate through the Terminal Port. The following table specifies which outputs are routed to which device for each of the valid device combinations. Table 18. Serial Port Operation Serial1 / Serial2 Output (Type of Data) Printer / Terminal COMPEL Email To printer if COMPEL_email is detected & raw data is not being processed. COMPEL Requested Reports To printer if raw data is not being proecssed. Raw Uplink Data. To printer if raw data is being processeddetected. COMPEL Email Same as for printer / terminal. COMPEL Requested Reports Same as for printer / terminal. Raw Uplink Data Same as for printer / terminal. Printer / Modem Port Data Sent To & Conditions 3.8 RECEIVER FUNCTIONS Note that throughout this manual, the term valid carrier means the absolute value of the difference between the LNB LO and the carrier is > 950 MHz and < 2150 MHz. Page 35 of 74 UTY4422-001 Page 36 3.8.1 Perms, Temps, Searching & Settings The term settings is used throughout this document and includes the following parameters: Table 19. Settings Parameters {RF_In} Value from 1 - 4, specifying the RF input (if RF Switch is installed) Carrier The downlink frequency specified in MHz with up to two decimal places. This value’s absolute difference with the LNB LO frequency must be ≥ 950 MHz and ≤ 2150 MHz. Data_rate The data_rate is the MPEG2 transport rate in Mbps. (See Table 3, Page 16, for allowed ranges.) This value can have up to three decimal places. FEC_rate The inner FEC code ratio, which can have one of the following values: 1/2, 2/3, 3/4, 5/6, or 7/8. Tag_site Value of 0-15 specifying the location of this carrier’s tag frequency. ‘15’ is reserved for ‘No Tag Required.’ [program] The program stream. If omitted or an ‘*’ is entered, the unit will select the first available program stream. If the number is in the range 1-65535, the unit will use only the program stream with the corresponding PID number. If a string is entered, the unit will use only the program with the corresponding identifier. The unit will support a minimum of three programs. If a carrier contains more than three programs, the unit will only use the first three. UTY4422-001 Page 36 of 74 Page 37 The IRD is acting on one of three groups of settings at any given time, each of which is described in the following table: Table 20. Group Settings Settings Group Description Temp These settings are entered via COMPEL or the TEMP / TEMPCH terminal commands. The unit is said to be inserting when it is configured to the temp settings. The maximum length of an insert is approximately 18 hours (65535 seconds). An insert terminates when (1) it times out, (2) an ABORT command is received, (3) power is cycled, or (4) an invalid header is seen. Any Temp commands received while the receiver is currently inserting are ignored. If a Perm command is received while inserting, the perm_settings are updated but not acted on until the insert is terminated. Perm The perm_settings are entered via COMPEL or the Terminal Commands PERM and PERMCH, or automatically from within a search mode (see below). The group perm_settings is the only settings group stored in NVRAM. Search The search_settings are active while in Carrier Search, Header Search, and Satellite Search modes. When the unit finds what it is looking for in the search mode, it copies the search_settings to the perm_settings. These are then considered to be the active settings. 3.8.2 Signal Quality Monitoring The IRD provides the following signal quality information: Table 21. IRD Signal Quality Eb/No An average Eb/No reading. It is updated approximately every 500 mS, and is a 10 second running average of these updates. RF Level HIGH, LOW, OK. See Table 2, Page 15. Signal Fades A counter is maintained for transitions from Tracking to Fade mode. RF Glitches A counter is maintained for carrier “hits”. A “hit” is when the receiver board detects one or more uncorrectable FEC frames, yet small enough not to cause a transition from Tracking to Fade mode. Shows the percentage of time that the unit has been locked on a carrier since that carrier was first acquired (timer.locked / timer.since_first_acquired). Availability Page 37 of 74 UTY4422-001 Page 38 3.8.3 Frequency Tagging Under normal operation, the IRD can only acquire carriers that contain frequency tags. These tags are inserted in the COMPEL control stream at the uplink and are used for identifying the carrier’s frequency. Tagging was mandated because, without tags the IRDs could have locked on some other nearby (adjacent) carrier while looking for the intended carrier. The tuning can be off by a small amount due to minor offsets in the LNB and within the receiver itself. Traditionally, the tags have been sent at a rate of every 100 or 125 mS. The IRD supports both single and multiple tags. The tag_site, which is part of the settings, tells the receiver which of these 17 possible tags to use. To reduce processing overhead, the unit only looks for tags while in the Get Tag sub-mode or when tag_testing. 3.9 DISPLAY / PUSH BUTTONS 3.9.1 Overview The front panel consists of a 2 X 20 Display and six push buttons. Essentially all control available through the terminal is available via the front panel. The front panel can also be used to view a COMPEL down-loadable text message. This message is volatile and can contain up to 512 characters. The Display can be in one of the following modes: Table 22. Display Modes Mode Description HOME Display shows ALARM or WARNING message (if applicable), or RF switch position, carrier frequency, program ID and TEMP (if inserting). Display returns to this screen after push buttons are inactive for 5 minutes or if both ENTER and SELECT buttons are pressed simultaneously. SN Unit Serial Number displayed for a few seconds if ENTER is pressed while in HOME screen. MENU Entered from Home mode. Display shows menu for each available command group. PARAMETER Entered from Menu mode. Display shows specific parameter associated with command group. EDIT Entered from Parameter mode. Display blinks edit field when in this mode. UTY4422-001 Page 38 of 74 Page 39 3.9.2 Push Button Functions Table 23. Push Button Functions LCD MODE HOME MENU PARAMETER EDIT PUSH BUTTON FUNCTION SELECT N/A ENTER Shows unit serial number for approximately 2 seconds ∧ (UP) N/A ∨ (DOWN) N/A > (RIGHT) Enters MENU mode. < (LEFT) Enters MENU mode. SELECT Enters PARAMETER mode ENTER N/A ∧ (UP) N/A ∨ (DOWN) N/A > (RIGHT) Scrolls forward through MENU selections. < (LEFT) Scrolls backward through MENU selections. SELECT Enters EDIT mode or exits EDIT mode (depending on displayed parameter) ENTER N/A ∧ (UP) N/A ∨ (DOWN) N/A > (RIGHT) Scrolls forward through PARAMETER selections. < (LEFT) Scrolls backward through PARAMETER selections. SELECT Cancels changes, leaves EDIT mode, and enters PARAMETER mode. ENTER Enters changes. ∧ (UP) Increases value of number in edit field or scrolls up to next choice in list. In number field, button increments once per button push or can be held to scroll. Button acceleration occurs when pushbutton is depressed for more than 5 seconds. ∨ (DOWN) Decreases value of number in edit field or scrolls down to next choice in list. In number field, button decrements once per button push or can be held to scroll. Button acceleration occurs when push-button is depressed for more than 5 seconds. > (RIGHT) Advances display to next edit field (if applicable). < (LEFT) Displays last edit field (if applicable). Page 39 of 74 UTY4422-001 Page 40 Table 24. LC Display Menus Note: Screens marked by ‘*’ are not shown if local control is disabled (either programmed into non-volatile memory at factory or set by COMPEL command). Exception: “Audio Settings” screen is shown but only “Attenuation” may be changed by local user. MAIN LEVEL SECOND LEVEL THIRD LEVEL Home Screen EMAIL Hardware Setup N/A Email Msg Current Settings* N/A RF Feed (Optional), Carrier Frequency and Data-rate FEC rate, Tag Site, and Program # Save/ Cancel
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