ADTRAN TRC582TR1 Point to Point Spread Spectrum System User Manual Title page
Adtran Point to Point Spread Spectrum System Title page
ADTRAN >
Manual
| Download: |  |
| Mirror Download [FCC.gov] | |
| Document ID | 114868 |
| Application ID | Q4YZn2l2yUzuyxSOS8oSmQ== |
| Document Description | Manual |
| Short Term Confidential | No |
| Permanent Confidential | No |
| Supercede | No |
| Document Type | User Manual |
| Display Format | Adobe Acrobat PDF - pdf |
| Filesize | 109.67kB (1370908 bits) |
| Date Submitted | 2000-08-28 00:00:00 |
| Date Available | 2000-08-28 00:00:00 |
| Creation Date | 2000-06-09 00:31:34 |
| Producing Software | Acrobat Distiller 4.0 for Macintosh |
| Document Lastmod | 2000-08-14 10:06:57 |
| Document Title | Title page |
| Document Creator | PageMaker 6.5 |
| Document Author: | money |
® TRACER 2xT1 User’s Manual TRACER 2xT1 User’s Manual Preliminary 61280003L2-1B 61280003L2-1B Preliminary TRACER 2xT1 User’s Manual RADIO FREQUENCY INTERFACE STATEMENT This equipment has been tested and found to comply with the limits for an intentional radiator, pursuant to Part 15, Subpart C of the FCC Rules. This equipment generates, uses, and can radiate radio frequency energy. If not installed and used in accordance with the instructions, it may cause interference to radio communications. The limits are designed to provide reasonable protection against such interference in a residential situation. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio or television reception, which can be determined by turning the equipment on and off, the user is encouraged to try to correct the interference by one or more of the following measures: • • • • Reorient or relocate the receiving antenna of the affected radio or television. Increase the separation between the equipment and the affected receiver. Connect the equipment and the affected receiver to power outlets on separate circuits. Consult the dealer or an experienced radio/TV technician for help. WARNING Changes or modifications not expressly approved by ADTRAN could void the user’s authority to operate the equipment. Shielded Cables A shielded-type power cord is required in order to meet FCC emission limits and also to prevent interference with nearby radio and television reception when using the AC voltage adapter. It is essential that only the Adtran-provided power cord be used. FCC Output Power Restrictions The FCC does not require licensing to implement this device. However, the FCC has established restrictions regarding maximum output power and the adjustments required when employing directional gain antennas. (Refer to “Setting the Transmitter Power” in Section 2 of this manual). These restrictions are detailed in FCC Part 15.247 (b)(1), (b)(3)(i), and (3)(iii). It is the responsibility of the individuals designing and implementing the radio system to assure compliance with these and any other pertinent FCC Rules and Regulations. This device must be professionally installed. Exposure to Radio Frequency Fields The TRACER is designed in three versions with the following power options: 2.4 GHz @ 100 mw 2.4 GHz @ 1 w 5.8 GHz @100 mw These levels of RF energy in are below the Maximum Permissible Exposure (MPE) levels specified in FCC OET 65:97-01. The installation of high gain antenna equipment in the system configuration may create the opportunity for exposure to levels higher than recommended for occupation/controlled personnel a distance less than 8 feet (2.5meters) from the center of the antenna. The following precautions must be taken during installation of this equipment: TRACER 2xT1 User’s Manual Preliminary 61280003L2-1B Radio Frequency Interference Statement • • • • • • • The installed antenna must not be located in a manner that allows exposure of the general population to the direct beam path of the antenna at a distance less than 8 feet (2.5 meters). Installation on towers, masts, or rooftops not accessible to the general population is recommended; or Mount the antenna in a manner that prevents any personnel from entering the area within 8 feet (2.5 meters) from the front of the antenna. It is recommended that the installer place radio frequency hazard warnings signs on the barrier that prevents access to the antenna. Prior to installing the antenna to the RFC output, make sure the power is adjusted to the settings specified in section 2 of this manual. During antenna installation, be sure that power to the TRACER equipment is turned off in order to prevent any energy presence on the coaxial connector. During installation and alignment of the antenna, do not stand in front of the antenna assembly. During installation and alignment of the antenna, do not handle or touch the front of the antenna. These simple precautions must be taken to prevent occupational and installation personnel from exposure to RF energy in excess of specified MPE levels. ii Preliminary TRACER 2xT1 User’s Manual 61280003L2-1B Table of Contents Page Section 1 TRACER Description Introduction ................................................................................................................................. 1 ISM Band Spread Spectrum ........................................................................................................ 1 NEBS ........................................................................................................................................... 1 Applications ................................................................................................................................. 2 Spread Spectrum .......................................................................................................................... 2 Direct Sequence ......................................................................................................... 2 Coding ....................................................................................................................... 2 Channel Selection ........................................................................................................................ 3 Forward Error Correction ............................................................................................................ 3 T1 Operation .............................................................................................................. 3 Framing ....................................................................................................... 3 Line Code ................................................................................................... 4 DS1/DSX-1 Interface ................................................................................. 4 Line Buildout or LBO ................................................................................ 4 TRACER System Configuration ................................................................................................. 4 Baseband Processor or BBP ...................................................................................... 4 DS1/DSX-1 Interface ................................................................................................ 5 VT-100 RS-232 Interface .......................................................................................... 6 Alarm Contacts .......................................................................................................... 6 IF Signal .................................................................................................................... 6 Power ......................................................................................................................... 6 Controls and Indicators .............................................................................................. 6 Non-Volatile Memory ............................................................................................... 8 Built-In Tests ............................................................................................................. 8 Radio Frequency Convertor or RFC .......................................................................... 8 Antenna .................................................................................................................... 10 TRACER 2xT1 User’s Manual Preliminary iii 61280003L2-1B Table of Contents Section 2 Installation Radio Frequency Interference Statement .................................................................................. 11 Shielded Cables ......................................................................................................................... 11 FCC Output Power Restrictions ................................................................................................ 11 Exposure to Radio Frequency Fields ......................................................................................... 11 Unpack, Inspect ......................................................................................................................... 12 Rackmounted RFC Configuration ........................................................................... 12 Mastmounted RFC Configuration ........................................................................... 12 Installation ................................................................................................................................. 13 Location and Mounting ........................................................................................... 13 Power Requirements ................................................................................................ 13 Grounding ................................................................................................................ 13 DS1/DSX-1 Interface .............................................................................................. 14 Link Planning ............................................................................................................................ 15 Antenna Feedline Loss ............................................................................................ 15 Antenna Gain ........................................................................................................... 15 Path Loss ................................................................................................................. 16 Path Availability ...................................................................................................... 16 Setting the Transmitter Power ................................................................................................... 17 2.4 GHz, 1 Watt Transmitter Option ......................................................................................... 17 Setting the RFC Frequency Plan on Non 1 Watt 2.4 GHz Models ........................................... 18 Setting the RFC Frequency Plan on 5.8 GHz Models ............................................................... 19 Directions for Changing the Frequency Plan on the Rack Mount RFC .................. 20 Directions for Changing the Frequency Plan on the Mast Mount RFC .................. 20 Connecting the BBP and the RFC ............................................................................................. 20 Applying Power ......................................................................................................................... 20 Automatic BBP Frequency Plan ................................................................................................ 20 Spreading Code ......................................................................................................................... 21 iv Preliminary TRACER 2xT1 User’s Manual 61280003L2-1B Table of Contents Co-Locating Multiple Systems .................................................................................................. 21 Antenna Alignment ................................................................................................................... 21 RF Low ...................................................................................................................................... 22 Remote BERT ........................................................................................................................... 22 Alarm Contacts .......................................................................................................................... 22 Section 3 Operation VT-100 User Interface ............................................................................................................... 23 RS-232 Interface ........................................................................................................................ 23 Modem Connection ................................................................................................................... 23 Telemetry Byte Oriented Serial Interface .................................................................................. 23 RF Down System Status ............................................................................................................ 28 Cable Connections ..................................................................................................................... 28 Password .................................................................................................................................... 28 Main Menu Selections ............................................................................................................... 29 System Status Page .................................................................................................. 29 Main Menu Page ...................................................................................................... 30 T1 Status Page ......................................................................................................... 30 Link Performance History ....................................................................................... 31 Channel A Statistics Page ........................................................................................ 31 Channel B Statistics Page ........................................................................................ 32 Alarm Page .............................................................................................................. 32 Test Menu ................................................................................................................ 33 Configuration Menu ................................................................................................ 34 Remote Access .......................................................................................................................... 35 Section 4 Troubleshooting General....................................................................................................................................... 37 Problem Descriptions and Recommended Actions ................................................................... 37 TRACER 2xT1 User’s Manual Preliminary 61280003L2-1B Table of Contents Troubleshooting using the front panel indicators .................................................... 37 “Link Error” light is lit, or link is down ................................................... 37 “BPV” light on T1-A or B is lit ................................................................ 38 RED light on T1-A or B is lit ................................................................... 38 “LBK-A” or “LBK-B” is lit...................................................................... 39 “AIS/YEL” on T1-A or T1-B is lit ........................................................... 39 “AIS/YEL” indicator is flashing............................................................... 40 No “Power” light ...................................................................................... 40 “Test” light is lit or blinking ..................................................................... 41 “TST” light is lit after pressing “Remote Test” button ............................ 41 “Fail” light is lit after pressing “Remote Test” button ............................. 42 “RF Low” light is on ................................................................................ 42 Troubleshooting Using the VT-100 User Interface ................................................. 43 RED Alarm ............................................................................................... 43 BLV Alarm ............................................................................................... 43 YEL/AIS Alarm ........................................................................................ 44 RF Link Alarm or Code Sync Alarm ....................................................... 44 Carrier Sync Alarm or T1 Mux Framer Alarm......................................... 45 ES Values in T1 Status Menu ................................................................... 46 SES Values in History Menu .................................................................... 46 Section 5 Specifications Transmitter ................................................................................................................................ 47 Receiver ..................................................................................................................................... 47 Frequency Plan .......................................................................................................................... 47 Spread Spectrum Data Pump ..................................................................................................... 47 Interface Specifications ............................................................................................................. 47 User Interface ............................................................................................................................ 47 VT-100 Terminal Interface ........................................................................................................ 48 vi Preliminary TRACER 2xT1 User’s Manual 61280003L2-1B Table of Contents Mechanical & Environmental .................................................................................................... 48 Power ......................................................................................................................................... 48 Section 6 Warranty, Ordering and Return Information Warranty .................................................................................................................................... 49 Sales ........................................................................................................................................... 49 Repairs and Returns ................................................................................................................... 49 Technical Support ...................................................................................................................... 49 Glossary Acronyms Used in This Manual ................................................................................................ 51 Appendix A Cable Connections Terminal Connection (DB25) .................................................................................................. A-1 Personal Computer Connection (DB9) .................................................................................... A-1 Modem Connection (DB25) .................................................................................................... A-2 TRACER 2xT1 User’s Manual Preliminary vii 61280003L2-1B Table of Contents Illustrations 1-1. Typical Application ...................................................................................................... 2 1-2. Bandwidth Division ...................................................................................................... 3 1-3. BBP ............................................................................................................................... 4 1-4. BBP Rear Panel ............................................................................................................ 5 1-5. BBP Block Diagram ..................................................................................................... 5 1-6. BBP Front Panel (with door closed) ............................................................................. 6 1-7. BBP Front Panel (with door open) ............................................................................... 7 1-8. RFC Module ................................................................................................................. 9 1-9. RFC Function Block Diagram ...................................................................................... 9 1-10. Mastmount RFC Housing ........................................................................................... 10 1-11. Rackmount RFC Housing ........................................................................................... 10 2-1. 2.4 GHz Diplexer ........................................................................................................ 18 2-2 5.8 GHz Diplexer ........................................................................................................ 19 3-1. Rear Panel Connectors................................................................................................ 24 3-2 System Status Page ..................................................................................................... 28 3-3 System Status Page ..................................................................................................... 29 3-4 Main Menu Page ......................................................................................................... 30 3-5. T1 Status Page ............................................................................................................ 30 3-6. Link Performance History Page ................................................................................. 31 3-7. Channel A Statistics Page ........................................................................................... 31 3-8. Channel B Statistics Page ........................................................................................... 32 3-9 Alarm Page ................................................................................................................. 32 3-10. Test Menu ................................................................................................................... 33 3-11 T1 Loopback Locations .............................................................................................. 33 3-12. Configuration Menu ................................................................................................... 34 3-13. Remote Current System Status ................................................................................... 35 viii Preliminary TRACER 2xT1 User’s Manual 61280003L2-1B SECTION 1 Section 1 TRACER Description TRACER DESCRIPTION INTRODUCTION The TRACER provides dual T1 transport by way of a spread spectrum microwave link for distances up to 30 miles or more depending on path engineering. System performance is determined, in part, by the engineering of the microwave link. Each end of a TRACER link is composed of two units -- the baseband processor (BBP) and the radio frequency converter (RFC). Two DS1/DSX-1 (T1) interfaces are provided on the rear of the BBP, which can be mounted in a 19-inch rack. The DS1/DSX-1 interface provides connections up to 6000 feet from T1 equipment. A single coaxial cable connects the BBP to the RFC and another connects the RFC to the antenna. ISM BAND SPREAD SPECTRUM The Federal Communications Commission (FCC) has established several portions of the radio frequency (RF) spectrum for use in Industrial, Scientific, and Medical (ISM) applications. Part 15.247 of the FCC rules describes the requirements of systems that operate in these bands. The three bands set aside, 902-928 MHz, 2400-2483.5 MHz, and 5725-5850 MHz, are designated for use by spread spectrum transmitters, either frequency hopping or direct sequence. The TRACER operates in the 2400 to 2483.5 MHz or 5725-5850 MHz band using direct sequence spread spectrum (DSSS) transmission. NEBS Network Equipment Building Standards (NEBS) defines a rigid and extensive set of performance, quality, environmental and safety requirements developed by Telcordia, the R&D and standards organization owned by the seven regional Bell operating companies (RBOCs). NEBS compliance is often required by telecommunications service providers such as BOCs (Bell Operating Companies) and Interexchange Carriers (IEC) for equipment installed in their switching offices. NEBS defines everything from fire spread and extinguish ability test to Zone-4 earthquake tests, thermal shock, cyclic temperature, mechanical shock, and electro-static discharge. TRACER is NEBS Level 3 compliant (see Table 1-1 for a list of testing requirements.) Table 1-1. NEBS Testing Requirement Document GR-63 Operational Thermal (Short Term Conditions) Storage Environments and Transportation and Handling Earthquake (Zone 4 Level) Airborne Contaminants (Outdoor Levels) GR-1089 ESD (Installation and Repair) EMI Emissions (Open Doors) EMI Immunity (Open Doors) Steady State Power Induction Conditional Requirements TRACER 2xT1 User’s Manual Description R4-6/72 Equip. should withstand exposure to “Table 4-4 Short T” R4-7/73 Equip should withstand exposure to “Table 4-5 Short T” R4-3 - R4-5/69-70 Exposure to tests in Tables 4-2, 4-3 R4-41- R4-43/107-109 Packaged and Unpackaged shock criteria R4-58/124 Transportation vibration criteria R4-44 - R4-46/110-112 Equipment and Frame Level testing of Section 5.4.1 R4-48/114 Functional requirements testing of Section 5.4.1 O4-49/115 Constructed to meet testing of Section 5.4.1 R4-51/117 Base mounting to floor without auxiliary support R4-53/119 Specs for concrete anchors O4-60/126 Equipment should withstand testing “Table 4-10” R4-61/127 Equipment should withstand testing “Table 4-10” and o.s.air O2-4/4 Perform under tests of IEC 801-2, Clause 5 O3-2/9 EMI Emissions (Open Doors) CR3-11/18 Radiated Performance Criteria R3-10/17 Radiated Immunity Criteria CR5-2/43 Signaling - test to Table 5-1 (>20 ft) CR5-4/45 C-Message -Signaling-test to test condition (>20 ft) CR5-9/50 Signaling - test to Table 5-3 (>20 ft) CR5-11/52 C-Message weighted metallic noise test (>20 ft) Preliminary 61280003L2-1B Section 1 TRACER Description APPLICATIONS Any application that would typically use metallic T1 as a transport can use the TRACER instead. Figure 1-1 illustrates a typical application. Antenna Antenna RF Cable Mast Unit IF Cable VT-100 RF Cable TRACER Baseband Processor TRACER Baseband Processor RS-232 T1 POW AIS DATA T1 AIS DATA TRACER T1 TRANSCEI POW BP AIS DATA T1 AIS DATA TRACER TRANSCEI Rack-mount RFC TRACER Terminal T1 T1 T1 T1 Switch Cell Radio Cellular/PCS Site MSC 2xT1, Mast-mounted RFC 2xT1, Rack-mounted RFC Mast and Rack mount RFCs may be mixed to accommodate individual system requirements. Figure 1-1. Typical Application The TRACER can be used in any application requiring that data be shared at a high rate of speed. In addition to telephony applications, TRACER can be used in data communications such as internetworking, video conferencing, and telemetry. SPREAD SPECTRUM Spread spectrum is a form of communication in which the bandwidth of a message signal is intentionally increased or “spread.” The FCC rules allow two methods of spreading – frequency hopping and direct sequence. TRACER employs direct sequence spread spectrum. Direct Sequence A direct sequence transmitter spreads the signal by mixing the data with the output of a pseudorandom number generator which changes state at a rate higher than the data rate. This rate is called the “chipping” rate. The TRACER chipping rate is twelve times the data rate. Coding Many different pseudorandom sequences exist. The sequences are called pseudorandom because, although they appear noise-like, they are determinant and repeat after a specific number of chips. The longer a code is, the better correlation characteristics it possesses. These traits allow multiple spread Preliminary TRACER 2xT1 User’s Manual 61280003L2-1B Section 1 TRACER Description spectrum systems to operate in the presence of one another with minimal interference if they are operating with different sequences. The TRACER allows the selection of one of ten different 120-bit long sequences. CHANNEL SELECTION The FCC has allocated 83.5 MHz of spectrum in the 2.4 GHz band and 125 MHz in the 5.8 GHz band in which TRACER operates. A TRACER system fully uses the available bandwidth – transmitting in one half and receiving in the other. Figure 1-2 illustrates the bandwidth division. 2400 MHz 2441 MHz 2483.5 MHz 5725 MHz or 5787 MHz 5850 MHz Figure 1-2. Bandwidth Division The transmitter at one end (TxA) of a link will transmit in the lower half of the spectrum. Consequently the receiver at the other end will receive in the lower half of the band and transmit in the upper half. Thus, a system will operate in one of two frequency plans – transmit in the upper and receive in the lower or vice versa. These two plans are called Plan A and Plan B. One end of a path will be on Plan A and the other will be on Plan B. Shipment of a link will consist of an A and a B unless otherwise specified. FORWARD ERROR CORRECTION With the addition of overhead data, error detection and correction capability can be added to a data stream. Error correction can be accomplished by allowing the receiver to request the re-transmission of an errored block once detected. The TRACER, on the other hand, implements forward error correction (FEC) which adds enough overhead data for the receiver to detect and correct errors in the data stream. This capability comes at the cost of bandwidth. The addition of FEC decreases the required signal-tonoise (S/N) ratio by approximately 5.5 dB to achieve a given bit error rate (BER). T1 Operation Framing The data in a T1 stream is delimited by framing bits. The pattern of the framing bits follows one of two formats -- extended superframe ( ESF) or superframe (SF). The T1 interface must be prepared for the format that will be used. TRACER 2xT1 User’s Manual Preliminary 61280003L2-1B Section 1 TRACER Description Line Code A mark in the data stream is coded as a pulse on the T1 line. A space is coded as “no activity” on the T1 line. As a form of error detection, subsequent marks in the data stream are coded as pulses of alternating polarity, either positive going or negative going. This type of line coding is called alternate mark inversion (AMI). For the T1 receiver to operate correctly, a minimum number of “1s” must exist on the T1 facility. If the data cannot be guaranteed to meet this requirement, then another line coding format is used. In the bipolar 8 zero substitution (B8ZS) scheme, a string of eight “0s” is replaced by a special sequence of eight bits that contains a bipolar violation. The receiver, upon recognizing this sequence, reinserts the eight “0s” and the data is recovered intact. DS1/DSX-1 Interface When connecting the interface to the public switched network, an ADTRAN-provided cross-over cable (part number 3125M011@A) is required to meet FCC part 68 and IC CS03 requirements. This cable is required to cross-over the Tx and Rx pairs to meet the connecting arrangement of a network interface device. This cable is included with the BBP and is labelled “T1 Crossover.” Line Buildout or LBO The DS1/DSX-1 interface provides two different types of line buildouts (LBOs), respectively. When set for DS1, LBOs for 0 dB, -7.5 dB, -15 dB, and -22 dB are available. The DS1 interface can operate on line lengths up to 6,000 feet. When set for DSX-1 interface, LBOs for 0-133 feet, 266-399 feet, 399-533 feet, and 533-655 feet are available. TRACER SYSTEM CONFIGURATION A TRACER system is composed of three major subsystems -- a baseband processor, a radio frequency convertor, and an antenna. The following section describes the system components. Baseband Processor or BBP The BBP (ADTRAN part number 1280003L2) is a 1-U, 19-inch rackmountable unit that provides the system electrical interfaces, user controls and indicators, and performs the spread spectrum processing for the system. The rear panel provides all of the electrical interface points -- DS1/DSX-1 interface, DS1/DSX-1 monitor, VT-100 terminal, alarm contacts, IF signal, DC power (from facility), and power (from AC adapter). The BBP and its rear panel are illustrated in Figure 1-3 and 1-4. T1A BPV T1B BPV FREQ SYSTEM TEST LBK LBK PLAN A RF LOW POWER YEL/AIS YEL/AIS PLAN B LINK DOWN RED RED Figure 1-3. BBP Preliminary TRACER 2xT1 User’s Manual 61280003L2-1B Section 1 TRACER Description MANAGEMENT Figure 1-4. BBP Rear Panel DS1/DSX-1 Interface Two DS1/DSX-1 interfaces, labelled “T1A” and “T1B,” are provided for connecting to the T1 equipment. Two types of physical interfaces are provided -- RJ-48C and bantam jacks. The interfaces are illustrated in Figure 1-5, BBP Block Diagram. The functions of the BBP are partitioned into three printed circuit boards or PCBs, all contained in the same enclosure. RS-232 UART T1A T1 Baseband Processor Board µC T1C Multiplex T1B Spread Spectrum Data Pump Viterbi Encoder/ Decoder T1 Fc = 140 MHz IF Filter Σ DSP 90 Fc = 70 MHz 90 IF Interface Board -48Vdc Figure 1-5. BBP Block Diagram The DS1/DSX-1 interfaces provided for each channel are the same. The upper bantam connectors, labeled “Monitor,” provide isolated monitor points for testing. The lower bantam jacks provide signal insertion points. The insertion of a bantam jack disconnects the RJ-48C connector from the circuit. The DS1/DSX-1 interface can operate on line lengths up to 6000 feet. When connecting either T1 interface to the public switched network, an ADTRAN-provided cross-over cable (part number 3125M011@A) is required to meet FCC part 68 and IC CS03 requirements. This cable is included with the BBP and is labelled “T1 Crossover.” This cable is required to cross-over the TX and RX pairs to meet the connecting arrangement of a network interface device. For connections to other CPE-type equipment, such as an ADTRAN TSU-100, a straight-through T1 cable is provided by ADTRAN (part number 3127004) and is included with the BBP. TRACER 2xT1 User’s Manual Preliminary 61280003L2-1B Section 1 TRACER Description VT-100 RS-232 Interface A serial interface port using RS-232C signal levels is provided for attaching a VT-100-compatible terminal. The connection is made via a DB-25 connector on the rear panel. The data rate is configured for 9600 bps, 8 data bits, no parity, and 1 stop bit. A 7-day error history of the T1 interfaces and radio link is also provided. Fifteen-minute histories are provided for the most recent 24 hours of operation. Alarm Contacts Two sets of alarm contacts are provided on the rear of the BBP: major alarm and minor alarm. A major alarm indicates the radio link is not operational. A minor alarm indicates that system performance is degraded or that the T1 interfaces are experiencing errors. Normally-open and Normally-closed contacts are provided for both alarm types. Under normal operating conditions there is no continuity between the Normally-open and Common contacts, and, under an alarm condition, continuity between those contacts exists. The Normally-closed and Common contacts normally have continuity, while under alarm conditions, these contacts are open. IF Signal The N-type connector on the rear panel provides the interface point between the BBP and the RFC. This connection provides the data signal, power, and configuration information to the RFC. A coaxial cable (ADTRAN part number 3125RF027@A) is provided for connecting the BBP to the RFC for the rackmount model. Cable for connecting the BBP to a mastmount RFC must be provided by the customer after the length of cable has been determined. Power The unit receives power via one of two connectors. Power for the entire system is provided by these interfaces. The three-pin circular DIN connector is provided to connect an optional ADTRAN desktop AC adapter (ADTRAN part number 1360DSK24VL1), providing 24 volts DC. The three-pin terminal block allows the connection of any DC power source providing between 21 and 60 volts DC. The power consumption of the entire system is 30 watts. Controls and Indicators The system may be configured via the front panel, which is accessible behind a drop-down panel on the right half of the BBP. The front panel is illustrated in Figures 1-6 and 1-7. T1A TEST POWER BPV LBK YEL/AIS RED T1B BPV LBK YEL/AIS RED FREQ SYSTEM PLAN A RF LOW PLAN B LINK DOWN Figure 1-6. BBP Front Panel (with door closed) Preliminary TRACER 2xT1 User’s Manual 61280003L2-1B Section 1 TRACER Description UP DOWN Figure 1-7. BBP Front Panel (with door open) Options that are set from the front panel can be overridden via the terminal interface. As a rule, a green LED indicates a good situation, a red LED indicates an error situation, and a yellow LED indicates a configuration option. LEDs indicating overall system integrity are listed below. Test ............................... Red indicates that the self-test has completed and failed PWR ............................. Green indicates that DC voltage is applied The LEDs associated with the DS1/DSX-1 interfaces are listed below. There are two sections of identical indicators -- one for each DS1/DSX-1 interface. BPV .............................. Red if the incoming T1 stream contains bipolar violations RED .............................. Red if there is no signal present at the T1 interface LPBK ............................ Yellow if the T1 interface is in loopback YEL/AIS ...................... Flashes to indicate a T1 Yellow Alarm; remains On (solid) to indicate an AIS alarm (when the DS1/DSX-1 is receiving a Blue code) The LEDs indicating error conditions are listed below. RF Low ......................... Red indicates the received RF carrier level is too low Link Down ................... Radio path is down The front panel controls are listed below. Reset ............................. Reset the system LBKA ........................... Toggles the T1-A between no loopback and line loopback LBO .............................. Selects TI line buildout. Template on right edge of faceplate designates switch setting. LBKB ........................... Toggles the T1-B between no loopback and line loopback TRACER 2xT1 User’s Manual Preliminary 61280003L2-1B Section 1 TRACER Description Tx PWR ........................ UP increments radio transmit power up. DOWN increments radio transmit power down. VT100 terminal will indicate Tx Power setting. Remote Test ................. Initiate a remote test across the RF link Non-volatile Memory The TRACER system contains non-volatile memory to retain certain configuration settings. These settings include: Frequency plan Chipping code (if set from VT-100) Password Password enabling Site name T1 line coding (if set from VT-100) T1 framing (if set from VT-100) Built-In Tests The TRACER has several features to aid in site setup and later debugging. These diagnostics include T1 loopbacks and a link test with BERT (Bit Error Rate Test) data. A link test is performed by pressing the test button. The remote unit will then send a pseudorandom data pattern and the local end will compute a BER. After the conclusion of the test, the remote end will automatically be instructed to terminate the pattern generation. If any bit errors are introduced, the Remote Test Fail LED will illuminate. The monitor points provided on the front panel of the system are listed on the next page. I ......................................Demodulated received baseband output Q ....................................Demodulated received baseband output CLK ...............................Recovered clock for observing EYE pattern RSSI ..............................DC voltage indicating strength of the received signal at the antenna +5 ...................................System 5 volts -5 ....................................System -5 volts +12 .................................System +12 volts -12 .................................System -12 volts RF PWR ........................Voltage supplying RF power GND ..............................System ground Radio Frequency Converter or RFC The radio frequency converter (RFC) provides the radio frequency (RF) interface between the baseband processor and the antenna. The RFC is partitioned, functionally, into two major components - the transmitter and the receiver. The major connections illustrated in Figure 1-8 are transmit signal, receive signal, and the IF signal connection. The RFC unit is enclosed in a metal enclosure approximately 9.5 inches x 5.5 inches x 1 inch and is mounted in a 1-U, 19-inch rackmountable housing or mastmountable, weatherproof enclosure. Preliminary TRACER 2xT1 User’s Manual 61280003L2-1B Section 1 TRACER Description RSSI GND TX-PW RX IF TX Figure 1-8. RFC Module Three SMA connectors, located on the RFC module, provide RF and IF connection points. A test point is provided for monitoring the received signal strength indicator (RSSI). The voltage (relative to the GND test point) present on this test point represents the level of the received signal. This signal is used to align the antenna when installing the system and to verify the link is performing as designed. Another test point is provided to monitor the transmitter output power during system configuration. The only connections that must be made in the field are a coax connection between the baseband processor and the RFC and a coax connection between the RFC and the antenna. These connections require male, type N coax connectors. The IF connector provides the connection between the baseband processor and the rackmounted or mastmounted RFC. (An 8-inch IF cable [ADTRAN part # 3125RF027@A] is provided for rackmount systems). The TO ANTENNA connection provides the connection between the RFC and the antenna. A block diagram of the RFC functions is show in Figure 1-9. The RFC module is enclosed in either a 19-inch EIA rackmount housing, or a weather-tight enclosure suitable for mastmounting near the antenna for enhanced system performance. The RFC mastmount and rackmount housings are illustrated in Figures 1-10 and 1-11. SAW Rx 2018 5344 or 2058 5424 Splitter LPF 333 AGC IF Tx PA Splitter 5607 2321 or 5687 2281 AGC RF2 Figure 1-9. RFC Function Block Diagram TRACER 2xT1 User’s Manual Preliminary 61280003L2-1B Section 1 TRACER Description Figure 1-10. Mastmount RFC Housing Figure 1-11. Rackmount RFC Housing Antenna TRACER is intended to be coupled with an antenna that is directional and provides signal gain. There are several reasons for this requirement: • • • TRACER operates in point-to-point applications; therefore, an omnidirectional antenna is not needed. The FCC provides no recourse in this band in the event of nearby interference, so a highly directional antenna reduces the likelihood of interference in the antenna pattern. The low power transmitter is intended to be used with a high-gain antenna for long links. The antenna requirements are listed below. Antenna 100 mw Minimum gain .................... 15 dBi ............. Minimum return loss .......... 15 dB .............. Connector ........................... N-type ............. Impedance .......................... 50Ω ................. 10 Preliminary 1w 6 dBi 15 dB N-type 50Ω TRACER 2xT1 User’s Manual SECTION 2 INSTALLATION RADIO FREQUENCY INTERFERENCE STATEMENT This equipment has been tested and found to comply with the limits for an intentional radiator, pursuant to Part 15, Subpart C of the FCC Rules. This equipment generates, uses, and can radiate radio frequency energy. If not installed and used in accordance with the instructions, it may cause interference to radio communications. The limits are designed to provide reasonable protection against such interference in a residential situation. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio or television reception, which can be determined by turning the equipment on and off, the user is encouraged to try to correct the interference by one or more of the following measures: • • • • Reorient or relocate the receiving antenna of the affected radio or television. Increase the separation between the equipment and the affected receiver. Connect the equipment and the affected receiver to power outlets on separate circuits. Consult the dealer or an experienced radio/TV technician for help. WARNING Changes or modifications not expressly approved by ADTRAN could void the user’s authority to operate the equipment. SHIELDED CABLES A shielded-type power cord is required in order to meet FCC emission limits and also to prevent interference with nearby radio and television reception when using the AC voltage adapter. It is essential that only the ADTRAN-provided power cord be used. FCC OUTPUT POWER RESTRICTIONS The FCC does not require licensing to implement this device. However, the FCC has established restrictions regarding maximum output power and the adjustments required when employing directional gain antennas. (Refer to “Setting the Transmitter Power” in Section 2 of this manual). These restrictions are detailed in FCC Part 15.247 (b)(1), (b)(3)(i), and (3)(iii). It is the responsibility of the individuals designing and implementing the radio system to assure compliance with these and any other pertinent FCC Rules and Regulations. This device must be professionally installed. Exposure to Radio Frequency Fields The TRACER is designed in three versions with the following power options: 2.4 GHz @ 100 mw 2.4 GHz @ 1 w 5.8 GHz @100 mw These levels of RF energy in are below the Maximum Permissible Exposure (MPE) levels specified in FCC OET 65:97-01. The installation of high gain antenna equipment in the system configuration may create the opportunity for exposure to levels higher than recommended for occupation/controlled personnel at a distance less than 8 feet from the center of the antenna. The following precautions must be taken during installation of this equipment: TRACER 2xT1 User’s Manual Preliminary 11 61280003L2-1B Section 2 Installation • The installed antenna must not be located in a manner that allows exposure of controlled personnel to the direct beam path of the antenna at a distance less than 8 feet (2.5 meters). Installation is on towers, masts, or rooftops and is not accessible to the general population and; • the antenna is mounted such that prevents any personnel from entering the area within 8 feet (2.5 meters) from the front of the antenna. • It is recommended that the installer place radio frequency hazard warnings signs on the barrier that prevents access to the antenna. • Prior to installing the antenna to the RFC output, make sure the power is adjusted to the settings specified in section 2 of this manual. • During antenna installation, be sure that power to the TRACER equipment is turned off in order to prevent any energy presence on the coaxial connector. • During installation and alignment of the antenna, do not stand in front of the antenna assembly. • During installation and alignment of the antenna, do not handle or touch the front of the antenna. These simple precautions must be taken to prevent occupation and installation personnel from exposure to RF energy in excess of specified MPE levels. UNPACK, INSPECT Carefully inspect the TRACER for any shipping damages. If damage is suspected, file a claim immediately with the carrier then contact ADTRAN Customer Service. If possible, keep the original shipping container for use in shipping the TRACER back for repair or for verification of damage during shipment. Before beginning installation, verify that all of the following components are present. Rackmounted RFC configuration: Provided by ADTRAN • • • • Baseband processor Rackmounted RFC BBP to RFC IF interconnect cable DS1/DSX-1 interface cables (RJ-48 to RJ-48) Provided by customer • • • • Antenna feedline cable Antenna and mounting hardware VT-100 terminal and RS-232 interface cable (optional) 21 to 60 volt DC power source (available from ADTRAN), either polarity referenced to ground Mastmounted RFC configuration: 12 Provided by ADTRAN • Baseband processor • Mastmounted RFC • DS1/DSX-1 interface cables (RJ-48 to RJ-48) Provided by customer • • • • • Antenna feedline cable Antenna and mounting hardware BBP to mastmounted RFC IF interconnect cable VT-100 terminal and RS-232 interface cable (optional) 21 to 60 volt DC power source (available from ADTRAN), either polarity referenced to ground Preliminary TRACER 2xT1 User’s Manual 61280003L2-1B Section 2 Installation INSTALLATION Location and Mounting Install the TRACER in a location that requires minimal antenna feedline length (the loss in this cable directly affects overall system performance). The BBP is designed to be mounted in a rack, above the RFC. Although no space is needed between the units, certain regulations may require at least .75" of space above and below the BBP. Power Requirements The TRACER can operate from a supply between 21 and 60 volts DC, with either polarity referenced to ground, and consumes 30 watts. Amperage is determined by dividing the wattage (30) by the input voltage (i.e., 30 watts/48 volts = .625 amps), Grounding The following grounding instructions are derived from the Underwriters’ Laboratory UL 1459 Standard for Safety: Telephone Equipment dated September 20, 1993. An equipment grounding conductor that is no smaller in size than the ungrounded branch-circuit supply conductors is to be installed as part of the circuit that supplies the product or system. Bare, covered, or insulated grounding conductors are acceptable. Individually covered or insulated equipment grounding conductors shall have a continuous outer finish that is either green, or green with one or more yellow stripes. The equipment grounding conductor is to be connected to ground at the service equipment. The attachment-plug receptacles in the vicinity of the product or system are all to be of a grounding type, and the equipment grounding conductors serving these receptacles are to be connected to earth ground at the service equipment. A supplementary equipment grounding conductor shall be installed between the product or system and ground that is in addition to the equipment grounding conductor in the power supply cord. The supplementary equipment grounding conductor shall not be smaller in size than the undergrounded branch-circuit supply conductors. The supplementary equipment grounding conductor shall be connected to the product at the terminal provided, and shall be connected to ground in a manner that will retain the ground connection when the product is unplugged from the receptacle. The connection to ground of the supplementary equipment grounding conductor shall be in compliance with the rules for terminating bonding jumpers at Part K or Article 250 of the National Electrical Code, ANSI/NFPA 70. Termination of the supplementary equipment grounding conductor is permitted to be made to building steel, to a metal electrical raceway system, or to any grounded item that is permanently and reliably connected to the electrical service equipment ground. Bare, covered, or insulated grounding conductors are acceptable. A covered or insulated grounding conductor shall have a continuous outer finish that is either green, or green with one or more yellow stripes. The supplemental equipment grounding terminals are located on the rear of the BBP adjacent to the power connectors and on the rear of the rackmounted RFC. TRACER 2xT1 User’s Manual Preliminary 13 61280003L2-1B Section 2 Installation DS1/DSX-1 Interface The rear panel of the TRACER has two sets of jacks labeled T1A and T1B which provide the same functionality. The pin assignments for the eight-position modular jack are listed below. Pin Name Function 1 ................ R ....................... Send data (ring) 2 ................ T ....................... Send data (tip) 3 ........................................... Not used 4 ................ R1 ..................... Receive data (ring) 5 ................ T1 ..................... Receive data (tip) 6 ........................................... Not used 7 ........................................... Not used 8 ........................................... Not used Bantam jack connections are provided for test equipment access. Data is received on the jack labelled “IN” and is transmitted on the jack labelled “OUT.” Bantam jacks are provided for both inserting and monitoring the interfaces. When a plug is placed in the insert jack, the connection between the modular jack and the interface circuitry is broken. The monitor jacks provide access to monitor the transmitted and received signals without interference. When connecting either T1 interface to the public switched network, an ADTRAN-provided crossover cable (part number 3125M011@A) is required to meet FCC part 68 and IC CS03 requirements. This cable is required to cross-over the Tx and Rx pairs to meet the connecting arrangement of a network interface device. This cable, labelled “T1 Crossover,” is included with the BBP. For connections to other CPE-type equipment, such as an ADTRAN TSU, a straight-through T1 cable (ADTRAN part number 3127004) is included with the BBP. Each DS1/DSX-1 interface must be configured for line code and framing, either from the front-panel rocker switches or via the VT-100 terminal. The choices for line code are AMI and B8ZS. The options for framing are SF and ESF. Each channel can be configured independently of the other and should be configured to match the attached T1 equipment. The line build-out (LBO) must be set for each DS1/DSX-1 interface. The LBO setting allows each DS1/DSX-1 interface transmitter to drive the interface with the correct signal strength based on the line attenuation between TRACER and the attached equipment. The LBO is independently set for each interface via rotary switches on the front panel. Two sets of configurations are provided -- DSX-1 for short-haul interface (less than 655 feet) and DS1 for long-haul interfaces (greater than 655 feet). The settings are detailed below. Interface Type LBO Switch Setting DSX-1 .......................... 0-133 feet ................... 2, 3 DSX-1 ........................ 133-266 feet ................... 4 DSX-1 ............................ 266-399 ....................... 5 DSX-1 ............................ 399-533 ....................... 6 DSX-1 ........................ 533-655 feet ................... 7 DS1 .................................... 0 dB .......................... 8 DS1 ................................. -7.5 dB ........................ 9 DS1 .................................. -15 dB ....................... 10 DS1 ................................ -22.5 dB ...................... 11 14 Preliminary TRACER 2xT1 User’s Manual 61280003L2-1B Section 2 Installation LINK PLANNING IMPORTANT The appropriate transmitter power must be calculated as part of the link planning. The factors that must be taken into account when planning a link are optimal received signal level, transmitter power, antenna feedline loss (each end), antenna gain (each end), free space path loss, and required fade margin. IMPORTANT The optimal signal level for the receiver is -60 dBm. Antenna Feedline Loss Feedline loss is a function of feedline type and length. Feedline loss per 100 feet for several types of coax at IF and RF frequencies is detailed in the table below. The IF loss applies to BBP/RFC interconnection, and the RF loss applies to RFC/antenna interconnection. Antenna manufacturers’ specifications may vary. IF Loss/100 feet 2.4 GHz RF Loss/100 feet 5.7 GHz RF Loss/100 feet Cable (in dB) (in dB) (in dB) RG58 ..................................................... 5.7 ................................... 80 ............................................ N/A RG8 (air) ............................................... 2.7 ................................... 20 ............................................ N/A RG8 (foam) ............................................ 2 ...................................... 9 ............................................. N/A /4" Coax ............................................... 1.42 ................................ 5.91 ......................................... 11.36 /8" Coax ............................................... 1.25 ................................ 5.76 .......................................... 9.65 /2" Coax ............................................... 0.81 ................................ 3.83 .......................................... 6.49 /8" Coax ............................................... 0.44 ................................. 2.2 ............................................ N/A 1 1/4" Coax ............................................ 0.33 ................................ 1.62 ........................................... N/A 1 5/8" Coax ............................................ 0.27 ................................ 1.41 ........................................... N/A 5.8 GHz Elliptical Waveguide ............. N/A ................................ N/A .......................................... 1.23 Antenna Gain Best performance will result from the use of a parabolic dish antenna. Antenna gain is determined by the size of the dish, with typical figures detailed below. Dish manufacturers will be able to supply gains for other types of antenna. Dish Diameter 2.4 GHz Gain 5.8 GHz Gain (in feet) (in dBi) (in dBi) 2 ....................................... 21 ................................... 28.5 4 ....................................... 27 ................................... 34.2 6 ....................................... 31 ................................... 37.5 8 ....................................... 33 ................................... 40.7 10 ...................................... 35 ................................... 42.5 12 ...................................... 37 ................................... 44.2 TRACER 2xT1 User’s Manual Preliminary 15 61280003L2-1B Section 2 Installation Path Loss The free space path loss is given by Loss(dB) = 96.6 + 20 log10f + 20log10D where D is distance in miles f is operating frequency in GHz A tabulation of various path loss is given below. 2.4 GHz Link Distance Path Loss (in miles) (in dB) 1 ................. 104 2 ................. 110 3 ................. 114 4 ................. 116 5 ................. 118 6 ................. 120 7 ................. 121 8 ................. 122 9 ................. 123 10 ................ 124 11 ................ 125 12 ................ 126 2.4 GHz Link Distance Path Loss (in miles) (in dB) 13 ................ 126 14 ................ 127 15 ................ 128 16 ................ 128 17 ................ 129 18 ................ 129 19 ................ 129 20 ................ 130 21 ................ 130 22 ................ 131 23 ................ 131 24 ................ 132 5.8 GHz Link Distance Path Loss (in miles) (in dB) 1 ................ 112 2 ................ 118 3 ................ 121 4 ................ 124 5 ................ 126 6 ................ 127 7 ................ 129 8 ................ 130 9 ................ 131 10 ............... 132 11 ............... 133 12 ............... 133 5.8 GHz Link Distance Path Loss (in miles) (in dB) 13 ............... 134 14 ............... 135 15 ............... 135 16 ............... 136 17 ............... 136 18 ............... 137 19 ............... 137 20 ............... 138 21 ............... 138 22 ............... 139 23 ............... 139 24 ............... 139 Path Availability The availability of a path can be expressed by: availability = (1 - C x T x 2.5 x 10-6 x f x D3 x 10-F/10) x 100% where C is the climate factor T is the terrain factor f is the frequency in GHz D is the path length in miles F is the fade margin in dB Climate factors are given below. Climate Climate Factor Very Dry ............................................................ 1/8 Temperate .......................................................... 1/4 Humid ................................................................ 1/2 Terrain factors are listed below. Terrain Terrain Factor Smooth ............................................................... 4 Average .............................................................. 1 Mountainous ..................................................... 1/4 16 Preliminary TRACER 2xT1 User’s Manual 61280003L2-1B Section 2 Installation The nominal received signal level is -60 dBm. For help in link planning, use the path loss calculation worksheet below. - 91 dBm (-90 dBm for 5.8 GHz) ........ Minimum Signal Power + _______ ............................................. Transmitter Feedline Loss - _______ ............................................. Transmitter Antenna Gain + _______ ............................................ Path Loss - _______ ............................................. Receiver Antenna Gain + _______ ............................................ Receiver Feedline Loss + _______ ............................................ Required Fade Margin = _______ ............................................ (dBm) Transmitter Power Setting SETTING THE TRANSMITTER POWER The FCC specifies the maximum transmitter power that may be used for antennae of a given gain. FCC rules Part 15, Subpart 247 allow for a maximum power of 1 watt into antennae of a gain less than or equal to 6 dBi. For every 3 dB of gain over 6 dBi, the transmitter must be reduced by 1 dB. The following table lists the maximum transmitter power for given antennae gains. For the 5.8 GHz band, there is no reduction in transmitter output power required for antennae gains greater than 6 dBi. Antenna Gain Power 6 dBi ......................................... 30 dBm (TRACER & 2.4 GHz 1 watt output option) 12 dBi ....................................... 28 dBm (TRACER & 2.4 GHz 1 watt output option) 18 dBi ....................................... 26 dBm (TRACER & 2.4 GHz 1 watt output option) 24 dBi ....................................... 24 dBm (TRACER & 2.4 GHz 1 watt output option) 30 dBi ....................................... 22 dBm (TRACER & 2.4 GHz 1 watt output option) 36 dBi ....................................... 20 dBm (TRACER standard output option) The transmitter power is set by way of a potentiometer on the front panel of the BBP or via the configuration page of the interface VT-100. The RFC must be attached by way of the IF cable during this operation. Attach an RF power meter to the N-type antenna connector on the RFC, and adjust the power by way of the potentiometer or VT-100 until the desired transmitter power is obtained. For convenience, the transmitter power adjustment should be made before the RFC is installed on the mast. 2.4 GHZ, 1 WATT TRANSMITTER OPTION The 2.4 GHz Tracer model is offered with a standard +20 dBm power output or optional 1 watt power output option. The 1 watt option provides an add-on amplifier that is installed in the rackmount RFC chassis. This amplifier is connected to the transmit cable of the RFC module and amplifies the +20 dBm output power to a maximum level of +30 dBm (1 watt), factory set to +27 dBm. The output power is proportional to the output level from the RFC module. The level is adjusted via the Baseband Processor front panel or VT-100 terminal. Because the 1 watt amplifier is frequency specific, the frequency plans can not be manually changed by swapping the TX and RX cables in the RFC chassis. If a frequency reversal is required, the rackmount RFCs will have to be relocated to the opposite ends of the microwave path. The 1 watt option is only available for the 2.4 GHz, rackmount Tracer systems. TRACER 2xT1 User’s Manual Preliminary 17 61280003L2-1B Section 2 Installation SETTING THE RFC FREQUENCY PLAN ON NON 1 WATT 2.4 GHZ MODELS The frequency plan designates on which frequencies the TRACER transmits and receives. Plan A corresponds to a transmitting (Tx) frequency of 2422 MHz and a receive (Rx) frequency of 2462 MHz. Plan B corresponds to a Tx frequency of 2462 MHz and a Rx frequency of 2422 MHz. Shipment of a link consists of one RFC set to Plan A and the other set to Plan B unless specified otherwise. The RFC plan can, however, be changed in the field if required if the 1 watt amplifier is not present. This procedure involves configuring the RFC interconnect cables. For rackmounted systems, do the following to reconfigure the RFC interconnect: 1. 2. Remove the SIX screws which retain the RFC cover and remove the cover. The RF unit may be identified by following the connection from the port labelled “IF” on the rear of the RFC. This connection terminates at the RF unit. The diplexer may be identified by following the connection from the “Antenna” port on the rear of the RFC. This connection terminates at the diplexer, illustrated in Figure 2-1. J1 AN J2 Figure 2-1. 2.4 GHz Diplexer 3. 4. 5. 6. 7. 8. 18 Unscrew the cable assemblies from the ports labelled “Tx” and “Rx” on the RFC, and the ports labelled “J1” and “J2” on the diplexer, depending on the frequency Plan (Plan A or Plan B). Unscrew the cable assembly from the port labelled “Antenna” on the diplexer. Remove the four screws from the bottom of the RFC that hold the diplexer in place. Turn the diplexer over revealing the opposite frequency plan (from Plan A to Plan B, or vice versa). Realign the diplexer with the screw holes and replace the four screws that attach it to the bottom of the RFC. Reattach the loose cable assembly (from step 4) to the port labelled “Antenna” on the diplexer. Preliminary TRACER 2xT1 User’s Manual 61280003L2-1B Section 2 Installation 9. Reattach the cable assemblies from the ports labelled “Tx” and “Rx” on the RFC, and the ports labelled “J1” and “J2” on the diplexer. Cable connections should be aligned to each other as follows: Plan A Plan B Tx = 2422 Tx = 2462 Rx = 2462 Rx = 2422 10. Replace and secure the RFC cover. For mastmounted systems, do the following to reconfigure the RFC interconnect: 1. 2. 3. 4. 5. Remove the lid of the mast RFC. Disconnect the three cables attached to the diplexer. The diplexer may be identified by following the antenna connector to the middle connector of the diplexer. Leave the cables in the same positions. Remove the two screws securing the diplexer and rotate the diplexer to reveal the opposite frequency plan label. Reinstall the two screws and reattach the cables in the same positions. Reinstall the lid of the mast RFC. SETTING THE RFC FREQUENCY PLAN ON 5.8 GHZ MODELS The 5.8 GHz RFC operates on Plan A, Tx = 5747 MHz, Rx = 5827 MHz or Plan B, Tx = 5827 MHz, Rx = 5747 MHz. See Figure 2-2 for an illustration of the 5.8 GHz diplexer. Plan A RFC “Tx” connected to diplexer “CHAN 1” RFC “Rx” connected to diplexer “CHAN 2” Plan B RFC “Tx” connected to diplexer “CHAN 2” RFC “Rx” connected to diplexer “CHAN 1” AN CH AN CH AN Figure 2-2. 5.8 GHz Diplexer TRACER 2xT1 User’s Manual Preliminary 19 61280003L2-1B Section 2 Installation Directions for Changing the Frequency Plan on the Rack Mount RFC 1. 2. 3. Remove RFC top cover by removing six screws. Disconnect the cables at the “Tx” and “Rx” RFC module ports. Swap and reconnect these two cables to the RFC module ports. Minimum bend radius on these cables is 3/4 inch. Use care in handling and forming bends in these cables. Reinstall the RFC top cover with the six screws previously removed. Directions for Changing the Frequency Plan on the Mast Mount RFC 1. 2. 3. 4. Remove the lid of the Mast RFC. Disconnect the two cables at both ends; at the diplexer and RFC module. Swap and reconnect these cables. Minimum bend radius on these cables is 3/4 inch. Use care in handling and forming bends in these cables. Reinstall the lid of the Mast RFC. CONNECTING THE BBP AND THE RFC The BBP and the RFC are connected by an IF cable, either supplied by ADTRAN (for rackmount assembly) or by the customer (for mastmount assembly). This single connection provides everything the RFC requires. The cable assembly attaches to the ports labeled “IF” on the BBP and the RFC. APPLYING POWER If the ADTRAN supplied tabletop power source is used, simply plug it into the circular receptacle located in the “DC Power” area on the rear of the BBP. If a source of 21 to 60 volts DC (30 watts), either polarity referenced to ground, is available, it may be attached to the terminal block located on the rear of the BBP. The positive lead should be attached to the “+” side of the block and the negative lead should be attached to the “-” side of the block. CAUTION Power sources must not be attached to both the circular connector and the terminal blocks at the same time or damage will occur. AUTOMATIC BBP FREQUENCY PLAN Upon the initial application of power, the BBP will default to the factory-preset Frequency Plan, or to the Frequency Plan determined by the cable configuration of the RFC. The LED will indicate which frequency plan is active. On subsequent reboots, such as after a loss of power, the BBP will default to the most recently used Plan setting. 20 Preliminary TRACER 2xT1 User’s Manual 61280003L2-1B Section 2 Installation SPREADING CODE The spreading code for each end must be the same. The choice of operating code is selectable by the operator or the installer. TRACER is shipped in a matched (default) configuration. WARNING It is possible for the spreading code to be changed remotely through the VT-100 interface from the other end of the link. When this is performed, communications will be lost to the far end. The spreading code will change to code “0” and communications will be lost as soon as this change is made. If this happens, set the Spreading Code on the local unit to code “0”. The units should regain communications as soon as the correct code is selected. Co-Location of Transmitters This equipment is authorized under CFR 47 Part 15.247. With this authorization by the FCC, this equipment shall not be co-located with a similar transmitter that transmits identical information. ANTENNA ALIGNMENT After the transmitter power for each end has been adjusted and the BBP and RFC have been installed and connected, the antenna should be connected to the RFC via the feedline. Verify that both antennas are arranged on the same polarity: vertical or horizontal. The antennas should be aimed toward one another as precisely as possible and the received signal strength indicator (RSSI) voltage measured. The RSSI voltage is a function of the signal strength at the receiver and is used to measure the received signal strength. RSSI varies approximately from 0 to 4 volts, with 0 volts corresponding to a weaker received signal and 4 volts corresponding to a stronger received signal. TRACER 2xT1 User’s Manual Preliminary 21 61280003L2-1B Section 2 Installation RF LOW The “RF Low” LED indicates that the received signal is within 10dB of the minimum received signal strength (~-80 dBm). If this indicator is on, the link performance may be marginal. The antennas should be peaked in azimuth and elevation until the desired signal level is achieved. RSSI may be monitored on either the RF unit or the front of the BBP. If the received signal is too strong and RSSI reaches a maximum such that the peak cannot be discerned, then the transmitter on the far end should be turned down. At this point the radio link should be operational. Proper operation can be determined by the status of the “LINK DOWN” LED. If this LED is on, the link is not operational. If this LED is not on, the link is operating. Certain types of interference can cause one end of a path to operate and the other end to fail. In some instances, this may be corrected by swapping the frequency plan at each end, thus avoiding the interference if it is stronger at one end than the other. Changing the spreading code at each end may also allow interference to be mitigated. REMOTE BERT The TRACER includes a Bit Error Rate Tester (BERT) to verify that the installed system is operating correctly. When the “Remote Test” button is pushed on the local BBP, the remote end will send a BERT pattern for approximately 10 seconds. The “Remote TST” indicator will turn yellow and remain on for the duration of the test. If no bit errors are detected, the “Remote TST” indicator will turn off. If any bit errors are detected, the “Remote Fail” indicator will turn red. This test should be run after the radio link has been aligned. If the test fails, refer to Section 4, “Troubleshooting,” for guidance. ALARM CONTACTS Two sets of alarm contacts are provided on the rear of the BBP: major alarm and minor alarm. A major alarm indicates the radio link is not operational. A minor alarm indicates that system performance is degraded or that the T1 interfaces are experiencing errors. Normally-open and Normally-closed contacts are provided for both alarm types. Under normal operating conditions there is no continuity between the Normally-open and Common contacts and under an alarm condition continuity between those contacts exists. The Normally-closed and Common contacts normally have continuity, while under alarm conditions, these contacts are open. 22 Preliminary TRACER 2xT1 User’s Manual SECTION 3 OPERATION VT-100 USER INTERFACE The TRACER may be accessed with a VT-100 compatible terminal set to 9600 bits per second, 8 data bits, and no parity, connected to the RS-232 port on the back of the unit. Once a terminal is connected, pressing the ESC key will present the System Status screen. If password access has been enabled, then press “Enter” or “Return” in order to see the “Enter Password:” message. TRACER is shipped with password protection disabled. RS-232 INTERFACE The TRACER has an RS-232 interface for system management via an attached VT-100 terminal, personal computer, or modem. The RS-232 port is configured as a DCE with the following pin assignments: Signal Name TXD RXD RTS CTS DSR Ground DCD DTR Pin Number 20 Direction To TRACER From TRACER To TRACER From TRACER From TRACER To TRACER To TRACER MODEM CONNECTION Option 16, discussed in the Configuration Menu page of this section, will enable or disable modem control. When this option is enabled from a standard terminal connection, all RS-232 communications will cease until a modem is attached with a Null-Modem adapter between the TRACER and data modem. The data modem will need to be configured for AUTO ANSWER and 9600 BPS. When the user connects via modem to the TRACER unit, communications via the RS-232 port will resume. If a user accidentally enables modem control from a terminal and disrupts the RS-232 communication, pressing [CTRL Z] three times, will temporarily disable the modem control option. This will allow the user to access the configuration menu to disable modem control. When modem control is enabled, the RS-232 port is inactive until DTR and DCD are active. This prohibits data being sent to the modem or received from the modem while idle. The required NullModem adapter may be obtained at any computer hardware supplier. A straight-through serial cable should be used between the adapter and the modem or TRACER unit. To ensure that the far-end modem disconnects when desired, option 17 of the CONFIGURATION MENU will disconnect the modem. The modem must be configured to drop the connection on loss of DTR in order to disconnect. TELEMETRY BYTE ORIENTED SERIAL (TBOS) INTERFACE E-telemetry systems were developed by the pre-divestiture AT&T organization as a method to monitor and control diverse network elements from a remote, centralized location. Status and command remote (SAC) units were employed in the central office to convert discrete (contact closure) alarms from monitored equipment into E-telemetry for efficient transfer of data to and from the operations center. TRACER 2xT1 User’s Manual Preliminary 23 61280003L2-1B Section 3 Operation With the advent of microprocessor technology, the alarm processing remote (APR, alarm remote or simply Remote) was developed, allowing discrete alarm links with network elements to be supplanted by a more efficient serial link. TBOS is the communications protocol defined for this link. The TRACER rear panel designates the TBOS ports as “MANAGEMENT IN” (on the bottom) and “MANAGEMENT OUT” (on the top). The TBOS polling station is connected to the MANAGEMENT IN port. If several devices or TRACER systems are daisy-chained together, plug the TBOS manager into the first units MANAGEMENT IN port (that physical unit does not have to be assigned TBOS address #1), and then connect that units MANAGEMENT OUT to the next units MANAGEMENT IN port. Follow that routine down the line, up to 8 units. TBOS operates via RS422, therefore the inputs and outputs are differential pairs. The pinout for the MANAGEMENT IN port is: pin 1 - Transmit- (out of TRACER) pin 3 - Transmit+ (out of TRACER) pin 5 - Receive- (in to TRACER) pin 7 - Receive+ (in to TRACER) The pinout for the MANAGEMENT OUT port is: pin 1 - Receive- (in to TRACER) pin 3 - Receive+ (in to TRACER) pin 5 - Transmit- (out of TRACER) pin 7 - Transmit+ (out of TRACER) The rear panel connectors are on a double-stack RJ45, so the pin numbers are opposite of each other: A TBOS monitoring system will need to define the following bitmaps to indicate status and alarm conditions. PIN 8 PIN 1 _______ ______| |______ | MANAGEMENT OUT | (TOP CONNECTOR) |_|_|_|_|_|_|_|_|_| PIN 1 ___________________ |_|_|_|_|_|_|_|_|_| PIN 8 | MANAGEMENT IN | (BOTTOM CONNECTOR) |_____ ______| |____| Figure 3-1. Rear Panel Connectors 24 Preliminary TRACER 2xT1 User’s Manual 61280003L2-1B Section 3 Operation A TBOS monitoring system will need to define the following bitmaps to indicate status and alarm conditions. Table 3-1. TRACER TBOS Alarm and Status Map Char. / Point Type Scan Point Definition Description 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 Status Status Status Status Status Status Status Status Frequency Plan 10 Second BERT Test Local T1A Line Loopback Local T1B Line Loopback Local T1A Link Loopback Local T1B Link Loopback Remote T1A Link Loopback Remote T1B Link Loopback 0 = Plan A, 0 = Normal, 0 = Normal, 0 = Normal, 0 = Normal, 0 = Normal, 0 = Normal, 0 = Normal, 1 = Plan B 1 = In Test 1 = Loop 1 = Loop 1 = Loop 1 = Loop 1 = Loop 1 = Loop 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Alarm Alarm Alarm Alarm Alarm Alarm Alarm RFC Link Fail Code Sync Fail Carrier Sync Fail T1 Mux Sync Fail (Link Err) Remote RF Link Down RF Low Remote Test Fail Unused 0 = Normal, 0 = Normal, 0 = Normal, 0 = Normal, 0 = Normal, 0 = Normal, 0 = Normal, 1 = Alarm 1 = Alarm 1 = Alarm 1 = Alarm 1 = Alarm 1 = Alarm 1 = Alarm 3/1 3/2 3/3 3/4 3/5 3/6 3/7 3/8 Alarm Alarm Alarm Alarm Alarm T1A BPV T1A Red Alarm T1A Yellow Alarm T1A AIS (Blue Alarm) T1A Transmit AIS Unused Unused Unused 0 = Normal, 0 = Normal, 0 = Normal, 0 = Normal, 0 = Normal, 1 = Alarm 1 = Alarm 1 = Alarm 1 = Alarm 1 = Alarm 4/1 4/2 4/3 4/4 4/5 4/6 4/7 4/8 Alarm Alarm Alarm Alarm Alarm T1B BPV T1B Red Alarm T1B Yellow Alarm T1B AIS (Blue Alarm) T1B Transmit AIS Unused Unused Unused 0 = Normal, 0 = Normal, 0 = Normal, 0 = Normal, 0 = Normal, 1 = Alarm 1 = Alarm 1 = Alarm 1 = Alarm 1 = Alarm TRACER 2xT1 User’s Manual Preliminary 25 61280003L2-1B Section 3 Operation Table 3-2. TRACER TBOS Command Map Command # Command Type Command Definition Latch Latch or Unlatch Latch or Unlatch Latch or Unlatch Latch or Unlatch Latch or Unlatch Latch or Unlatch 10 Second Remote Test Local T1A Line Loopback Local T1B Line Loopback Local T1A Link Loopback Local T1B Link Loopback Remote T1A Link Loopback Remote T1B Link Loopback Table 3-3. Alarm, Status and Command Overview Item Frequency Plan 10 Second BERT Test Local T1A Line Loopback Local T1B Line Loopback Local T1A Link Loopback Local T1B Link Loopback Remote T1A Link Loopback Remote T1B Link Loopback 26 Description A = 2422 MHz TX, 2462 MHz RX or 5747 MHz Tx, 5827 MHz Rx B = 2462 MHz TX, 2422 MHz Rx or 5827 MHz Tx, 5747 MHz Rx Remote end sends BERT pattern for 10 seconds Loops local T1A interface towards local CPE Loops local T1B interface towards local CPE Loops local T1A interface towards remote CPE over the RF link Loops local T1B interface towards remote CPE over the RF link Loops remote T1A interface towards local CPE over the RF link Loops remote T1B interface towards local CPE over the RF link RFC Link Fail converter is down Code Sync Fail Carrier Sync Fail T1 Mux Sync Fail (Link Error) Remote RF Link Down RF Low Remote Test Fail Active if the command link between the baseband processor and the RF Active if the link fails to achieve code sync Active if the link fails to achieve carrier sync Active if the T1C Mux fails to achieve sync Active if the remote Tracer unit is not receiving data Active if receive power is below –80 dBm Active if the 10 second BERT has failed over the RF link to the far end T1A BPV T1A Red Alarm T1A Yellow Alarm T1A AIS (Blue Alarm) T1A Transmit AIS Active when the T1A incoming data stream presents bipolar violations Active when there is no signal present at the T1A interface Active when the far end T1A equipment is in red alarm Active when the T1A DS1/DSX-1 is receiving a blue alarm code (all ones) Active when T1A is transmitting a blue alarm code (all ones) T1B BPV T1B Red Alarm T1B Yellow Alarm T1B AIS (Blue Alarm) T1B Transmit AIS Active when the T1B incoming data stream presents bipolar violations Active when there is no signal present at the T1B interface Active when the far end T1B equipment is in red alarm Active when the T1B DS1/DSX-1 is receiving a blue code (all ones) Active when the T1B DS1/DSX-1 is transmitting a blue code (all ones) Preliminary TRACER 2xT1 User’s Manual 61280003L2-1B Section 3 Operation Table 3-4. Discreet Alarm Summary Alarm Type Interface Description Major Minor RF RF T1 Mux Sync Fail (Link Error) RF Low Minor Minor Minor Minor Minor Minor T1A T1A T1A T1A T1A T1A Yellow Alarm Bipolar Violations Received AIS (Blue Alarm) Carrier Loss Sync Loss Data Loss Minor Minor Minor Minor Minor Minor T1B T1B T1B T1B T1B T1B Yellow Alarm Bipolar Violations Received AIS (Blue Alarm) Carrier Loss Sync Loss Data Loss Major and minor alarm contacts are provided on the rear of the baseband processor. A major alarm indicates the radio link is not operational. A minor alarm indicates that system performance is degraded or that the T1 interfaces are experiencing errors. TRACER 2xT1 User’s Manual Preliminary 27 61280003L2-1B Section 3 Operation RF DOWN SYSTEM STATUS If there is an error condition on the RF link, the [RF UP] labels on the link map will be replaced by [RF DOWN] or [?????] labels. During a RF error condition, it is not possible to receive status information from the remote site. However, when the RF link is intact, error conditions on any of the T1 interfaces are reported by the “T1A” and / or “T1B” labels becoming highlighted in reverse video. If the error is on the local TRACER, the T1 status menu can be accessed for complete alarm information. If the error is on the remote unit, remote access can be utilized (via another menu option) to check the status of the T1 interfaces at the remote end. Current System Status Elapsed Time 00:01:09 -——Adtran Technical Support - 800/726-8663 --—— T1AT1A ===| | / ->>--——>>—--—>>—--[??????]—--—>>—--—>>—--—>>-> \ | |=== T1A | |#(-)# | | T1BT1B ===| | \ -<<—--—<<—--—<<—--[RF DOWN]—--—<<—--—<<—--—<<- / | |=== T1B ——--—-— Local Tracer Remote Tracer Freq Plan A Freq Plan ? Tx Pwr Rx Pwr Tx Pwr Rx Pwr Max [X] [ ] Nominal Max [?] [?] Nominal [X] [ ] [?] [?] [X] [ ] Site: ADTRAN [?] [?] [X] [ ] [?] [?] [X] [ ] RFC Link Up: Yes [?] [?] [X] [ ] Code Sync: No [?] [?] [X] [ ] Carrier Sync: NoNo [?] [?] [X] [ ] T1 Mux Sync: Noo [?] [?] [X] [ ] Chipping Code: 0 [?] [?] [X] [ ] [?] [?] Min [X] [ ] Min Min [?] [?] Min =========================================================================== Press ‘m’ - Main menu: Figure 3-2. System Status Page CABLE CONNECTIONS The cable connections required for various configurations are detailed in Appendix A of this manual. PASSWORD TRACER provides optional password protection of the terminal interface. If enabled, a password prompt is presented at power-up, reboot, or after thirty minutes of inactivity on the terminal. The default configuration is “No password.” Password protection is enabled via the configuration menu. The password is also set via the configuration menu. If the password is forgotten, physical access to TRACER is required to access the terminal interface. The password may be bypassed by holding in the LPBK A button while the system is rebooted. This will bring up the terminal interface and allow the password to be changed or disabled via the configuration screen. CAUTION This procedure is service-affecting. 28 Preliminary TRACER 2xT1 User’s Manual 61280003L2-1B Section 3 Operation MAIN MENU SELECTIONS System Status Page This page displays the status of major system components. This is a status screen only; no configurations can be performed. More detailed information can be obtained by way of the Main Menu. Current System Status Elapsed Time 00:03:22 Adtran Technical Support- 800/726-8663 ---—— ----T1A ===| C | / --—>>—--—>>—--—>>-—[RF UP]->>—--—>>—--—>>—--—> \ | C |=== T1A | S |#(-)#| S | T1B ===| U | \ <—--—<<—--—<<—--—<<[RF UP]—--<<—--—<<—--—<<—-- / | U |=== T1B ---—— ——--Local Tracer Remote Tracer Freq Plan A Freq Plan B Tx Pwr Rx Pwr Tx Pwr Rx Pwr Max [X] [X] Nominal Max [X] [X] Nominal [X] [X] [X] [X] [X] [X] Site: ADTRAN [X] [X] [X] [X] [X] [X] [X] [X] RFC Link Up: Yes [X] [X] [X] [X] Code Sync: Yes [X] [X] [X] [X] Carrier Sync: Yes [X] [X] [X] [X] T1 Mux Sync: Yes [X] [X] [X] [X] Chipping Code: 0 [X] [X] [X] [X] [X] [X] Min [X] [X] Min Min [X] [X] Min =============================================================================== Press ‘m’ - Main menu: Figure 3-3. System Status Page The upper portion of the screen indicates how long the system has been running since the last reset operation. The “T1A” and “T1B” labels will be highlighted if any error conditions exist on that T1 interface. The status of the radio link is indicated as Up or Down. The left portion of the screen reports the status of the local system (the system to which the terminal is attached); the right portion reports the status of the remote system. The approximate transmitter and receiver signal levels are shown via the “fuel gauges.” If the link is down and remote end data is unavailable, the fuel gauges will show “-” instead of “x.” The Code Sync, Carrier Sync, and T1 Mux Sync will all be “yes” for an operational link. Chipping code indicates the code to which the system is set. At any point in the VT-100 menu structure, pressing the Escape key will bring the operator back to this screen. TRACER 2xT1 User’s Manual Preliminary 29 61280003L2-1B Section 3 Operation Main Menu Page Pressing “M” on any screen will take the user to the Main Menu, from which the subsequent screens can be accessed. TRACER Main Menu, Rev: A, 12/13/99 16:04:00 Site: Adtran 1) 2) 3) 4) 5) 6) 7) 8) T1 Status Page Link Performance History T1A Performance History T1B Performance History Alarm Page Test Menu Configuration Menu Remote Access =============================================================================== Press ESC for System Status: Figure 3-4. Main Menu Page T1 Status Page The status of the two T1 interfaces is displayed on this screen. Information such as alarm status, T1 receive levels, line coding, and framing type are shown. This is a status screen only. TRACER T1 Status Menu Site: Adtran Loop/Normal State Received Signl Lvl RX LOS (Red) Alarm RX AIS (Blue) Alarm RX Yellow Alarm TX AIS (Blue) Alarm Framing Line Code Line Build Out T1A T1B Normal +2dB to -7.5dB No No No No ESF (*) B8ZS (*) DS1 0dB (*) Normal Less than -22.5dB Yes No No Yes ESF (*) B8ZS (*) DS1 0dB (*) (*) Indicates last set by front panel. Otherwise last set by terminal. =============================================================================== Press ‘m’ - Main menu Figure 3-5. T1 Status Page 30 Preliminary TRACER 2xT1 User’s Manual 61280003L2-1B Section 3 Operation Link Performance History This screen presents detailed error statistics for the RF link. The data is presented as RFCL (Radio Frequency Converter Link) and LINK (RF Link) representing seconds out of service for each. The RFCL represents the communications channel between the BBP and RFC via the IF interconnect cable. The counts for the most recent 24 hours are recorded in 15-minute increments. Twenty-four-hour totals are recorded for the most recent days. 24 Hour Registers -RFCL-LINK-00000 00000 -1: ----- -----2: ----- -----3: ----- -----4: ----- -----5: ----- -----6: ----- -----7: ----- ----- TRACER Link Performance History Site: Adtran 15 Minute Registers -RFCL-LINK------RFCL-LINK<—- Current -—> 000 000 - 1: --- ---17: --- --- 2: --- ---18: --- --- 3: --- ---19: --- --- 4: --- ---20: --- --- 5: --- ---21: --- --- 6: --- ---22: --- --- 7: --- ---23: --- --- 8: --- ---24: --- --- 9: --- ---25: --- ---10: --- ---26: --- ---11: --- ---27: --- ---12: --- ---28: --- ---13: --- ---29: --- ---14: --- ---30: --- ---15: --- ---31: --- ---16: --- ---32: --- --- =============================================================================== Press ‘m’ - Main menu, ‘p’ - Prev pg, ‘n’ - Next pg: Figure 3-6. Link Performance History Page Channel A Statistics Page This screen presents detailed error statistics for T1A. The data is presented as Errored Seconds and Severely Errored Seconds. The counts for the most recent 24 hours are recorded in 15-minute increments. Twenty-four-hour totals are recorded for the most recent days. 24 Hour Registers --ES---SES-00000 00000 -1: ----- -----2: ----- -----3: ----- -----4: ----- -----5: ----- -----6: ----- -----7: ----- ----- TRACER T1A Performance History Site: Adtran 15 Minute Registers --ES-SES----------ES-SES<—- Current -—> 000 000 - 1: --- ---17: --- --- 2: --- ---18: --- --- 3: --- ---19: --- --- 4: --- ---20: --- --- 5: --- ---21: --- --- 6: --- ---22: --- --- 7: --- ---23: --- --- 8: --- ---24: --- --- 9: --- ---25: --- ---10: --- ---26: --- ---11: --- ---27: --- ---12: --- ---28: --- ---13: --- ---29: --- ---14: --- ---30: --- ---15: --- ---31: --- ---16: --- ---32: --- --- =============================================================================== Press ‘m’ - Main menu, ‘p’ - Prev pg, ‘n’ - Next pg: Figure 3-7. Channel A Statistics Page TRACER 2xT1 User’s Manual Preliminary 31 61280003L2-1B Section 3 Operation Channel B Statistics Page This screen presents detailed error statistics for T1B. The data is presented as Errored Seconds and Severely Errored Seconds. The counts for the most recent 24 hours are recorded in 15-minute increments. Twenty-four-hour totals are recorded for the most recent days. 24 Hour Registers ---ES---SES-- -1: -2: -3: -4: -5: -6: -7: 00000 ----------------------------- 00000 ----------------------------- TRACER T1B Performance History Site: Adtran 15 Minute Registers --ES-SES----------ES-SES<-- Current --> 1: 2: 3: 4: 5: 6: 7: 8: 9: 10: 11: 12: 13: 14: 15: 16: 000 --------------------------------- 000 --------------------------------- -17: -18: -19: -20: -21: -22: -23: -24: -25: -26: -27: -28: -29: -30: -31: -32: --------------------------------- --------------------------------- =============================================================================== Press ‘m’ - Main menu, ‘p’ - Prev pg, ‘n’ - Next pg: Figure 3-8. Channel B Statistics Page Alarm Page This screen presents alarm information for the system. The T1A or T1B alarms are described in the chapter entitled “Troubleshooting.” If any of the T1A or T1B alarms are active, a minor alarm will be indicated at the alarm contacts. The RF link alarm will be activated when communication between the BBP and the RFC has failed. Code Sync, Carrier Sync, and T1 Mux Framer alarms indicate that various portions of the spread spectrum data pump are not operating. Any of these alarms will cause a major alarm to be activated at the alarm contacts. TRACER Alarm Page Site: Adtran Code Sync Alarm Carrier Sync Alarm T1Mux Framer Alarm Off Off Off T1A T1B RX LOS (Red) Alarm RX AIS (Blue) Alarm RX Yellow Alarm BPV Alarm TX AIS (Blue) Alarm Off Off Off Off Off Off Off Off Off Off ===================================================================== Press ‘m’ for Main Menu: Figure 3-9. Alarm Page 32 Preliminary TRACER 2xT1 User’s Manual 61280003L2-1B Section 3 Operation Test Menu This screen allows each T1 to be put into loopback mode. TRACER Test Menu Site: Adtran 1) 2) 3) 4) 5) 6) Local T1A Line Loopback Local T1B Line Loopback Local T1A Link Loopback Local T1B Link Loopback Remote T1A Link Loopback Remote T1B Link Loopback =============================================================================== Press ‘m’ - Main menu: Figure 3-10. Test Menu Each menu selection is described below: 1. 2. 3. 4. 5. 6. Loops the local T1-A Interface towards the local customer equipment. Loops the local T1-B Interface towards the local customer equipment. Loops the local T1-A interface towards the remote customer equipment, over the RF Link. Loops the local T1-B interface towards the remote customer equipment, over the RF Link. Loops the remote T1-A Interface towards the local customer equipment, over the RF Link. Loops the remote T1-B Interface towards the local customer equipment, over the RF Link. T1-A T1-A T1-B RF Link T1-B Local Remote Figure 3-11. T1 Loopback Locations TRACER 2xT1 User’s Manual Preliminary 33 61280003L2-1B Section 3 Operation Configuration Menu This screen allows all system configurations to be performed. TRACER Configuration Menu Site: Adtran 1) T1A Framing 2) T1A Line Code 3) T1A Line Build Out 4) T1B Framing 5) T1B Line Code 6) T1B Line Build Out 7) Set Chipping Code 8) Set TX Power 9) Set Freq Plan 10) Reset all statistics 11) Enable/Disable Password 12) Change Password 13) Change Site ID 14) 15) 16) 17) Enable/Disable T1 B Change TBOS Display Number Enable/Disable Modem Control Hangup Modem =============================================================================== Press ‘m’ - Main menu: Figure 3-12. Configuration Menu The menu selections are described below. T1A and T1B Framing allow each T1 to be configured for SF or ESF framing. T1A and T1B Line Code allow each T1 to be configured for AMI or B8ZS. T1A and T1B Line Buildout allow each T1 to be configured for the appropriate line buildout, based on the distance to the T1 equipment. WARNING It is possible for the spreading code to be changed remotely through the VT-100 interface from the other end of the link. When this is performed, communications will be lost to the far end. The spreading code will change to code “0” and communications will be lost as soon as this change is made. If this happens, set the Spreading Code on the local unit to code “0.” The units should regain communications as soon as the correct code is selected. Set Chipping Code allows the chipping code to be selected. Each end of the link must be configured for the same chipping code. Set Tx Power allows the transmitter power to be adjusted. Set Freq Plan manually allows the frequency plan to be set to A or B. One end of a link must be set to A and the other set to B. This function is automatically set when the BBP is attached to the corresponding RFC. Reset All Statistics resets all the error counters. Enable/Disable Password allows password protection to be enabled or disabled. The default setting is Disabled. Change Password allows the password to be set. 34 Preliminary TRACER 2xT1 User’s Manual 61280003L2-1B Section 3 Operation Site ID allows a string of up to 32 characters to be entered as a site identifier. Enable T1 B disables Alarm and LEDs related to T1-B, but will pass T1 data. TBOS # changes the TBOS Equipment ID. Enable Modem Control enables modem control leads on RS 232 port. See Modem Connection under Operation Section. Hangup Modem lowers the DSR signal, which becomes DTR after passing through the null modem adapter. When modem is configured to disconnect on loss of DTR, the connection will drop. REMOTE ACCESS This allows access to the remote radio via the RF communications link. When accessed, the user will be able to identify remote mode by each screen titled "Remote." The remote menus are accessed via a 2400 bps link causing screen refresh to be slower than local mode. All pages are displayed as if the user were connected to the VT-100 terminal at the remote end of the link. Every screen that can be accessed at the local radio can be accessed at the remote radio via this option. Remote Current System Status Elapsed Time 00:21:13 ----ADTRAN Technical Support - 256/963-8716 ----| C | / ->>---->>---->>--->[RF UP]>---->>---->>---->>- \ | C | T1 ===| S |#(-)#| S |=== T1 | U | \ -<<----<<----<<----[RF UP]<----<<----<<----<<- / | U | --------Local Tracer Remote Tracer Freq Plan B Freq Plan A Tx Pwr Rx Pwr Tx Pwr Rx Pwr Max [ ] [X] Nominal Max [ ] [X] Nominal [ ] [X] [ ] [X] [ ] [X] Site: Adtran [ ] [X] [ ] [X] [ ] [X] [X] [X] RFC Link Up: Yes [X] [X] [X] [X] Code Sync: Yes [X] [X] [X] [X] Carrier Sync: Yes [X] [X] [X] [X] E1 Link Sync: Yes [X] [X] [X] [X] Chipping Code: 9 [X] [X] [X] [X] [X] [X] Min [X] [X] Min Min [X] [X] Min ============================================================================== Press 'm' - Main menu, '~' to exit remote mode: Figure 3-13. Remote Current System Status TRACER 2xT1 User’s Manual Preliminary 35 61280003L2-1B Section 3 Operation 36 Preliminary TRACER 2xT1 User’s Manual SECTION 4 TROUBLESHOOTING GENERAL If you experience a problem with the TRACER system, check to ensure that all connectors, coaxial cables, antennae and T1s are all properly connected; and that the system configuration ensures proper transmit and receive levels for the RF equipment. Then, if the problem persists, follow the actions recommended in this section. For further assistance, call ADTRAN Technical Support at (800) 726-8663. NOTE Each TRACER is completely system-tested and all specifications verified prior to shipment. Most problems on a new link tend to have installation-related solutions. PROBLEM DESCRIPTIONS AND RECOMMENDED ACTIONS Each problem described below is followed by a list of Possible Causes, each of which is followed by a number (or numbers) corresponding to a Recommended Action (or Actions). IMPORTANT If problems persist after you have followed the Recommended Actions, contact ADTRAN Technical Support at (800) 726-8663. Troubleshooting using the front panel indicators “Link Error” light is lit, or Link is Down This alarm will activate when the RF link is not operational. Recommended Action (see list below) Possible Cause • • • • • • • • • The RF link is down. ..............................................................................1-10 The RX power is below the -91 dBm threshold (-90 dBm 5.8 GHz)..1-4,7-10 The far-end transmitter is off, or is transmitting low power ........... 1-4,7-10 The RF path is not aligned ................................................................... 1,2,10 Water is in the antenna feedhorn or connectors ....................................... 1,4 Both units are set to the same frequency ................................................ 5,10 Both units are not set to the same PN code ................................................. 6 The connection between the BBP and the RFC is faulty. .................. 1,7-10 The connection between the RFC and the antenna is faulty. ............. 1,7-10 • The BBP or RFC is faulty. ......................................................................... 10 TRACER 2xT1 User’s Manual Preliminary 37 61280003L2-1B Section 4 Troubleshooting IMPORTANT If problems persist after you have followed the Recommended Actions, contact ADTRAN Technical Support at (800) 726-8663. Recommended Actions: 1. 2. 3. Check the RX power using the VT-100 user interface or RSSI voltage. Check the far-end transmitter for operation and proper transmit power. Check the RF path using a spectrum analyzer or RSSI voltages for proper alignment. Have path professionally re-aligned and check system path engineering. 4. Check the antenna feedhorn and all outdoor connections for water. 5. Verify same antenna polarity is used at both ends. 6. Change the frequency of one radio through the VT-100 user interface or front panel button. 7. Set both units to the same PN code. 8. Check all connections between the BBP, the RFC, and the antenna. 9. Check the IF and RF cables for shorts. 10. Check the connections inside the mastmount or rackmount RFC. 11. Replace the RFC. “BPV” light on T1-A or B is lit This alarm will activate when the incoming T1 stream presents BPVs. Recommended Action (see list below) Possible Cause • • The incoming T1 contains BPVs or errors. ................................................. 1 The line codes between DS1/DSX-1 equipment and the TRACER are incompatible. ......................................................................... 2 Recommended Actions: 1. 2. Check the incoming DS1/DSX-1 signal for BPVs using a T1 test set. Correct the line code on the TRACER or DS1/DSX-1 equipment. RED light on T1-A or B is lit This alarm (Loss of Signal) will activate when there is no signal present at the T1 interface. Recommended Action (see list below) Possible Cause • • 38 No DS1/DSX-1 signal or a degraded DS1/DSX-1 signal is present at the DS1/DSX-1 input. ........................................................................... 1,2 The connection at the T1 input or DS1/DSX-1 equipment is faulty. .......... 2 Preliminary TRACER 2xT1 User’s Manual 61280003L2-1B Section 4 Troubleshooting IMPORTANT If problems persist after you have followed the Recommended Actions, contact ADTRAN Technical Support at (800) 726-8663. Recommended Actions: 1. 2. Verify the presence of a DS1/DSX-1 signal at the T1 monitor jack using a T1 test set. Verify that all cables and connectors are correctly wired. “LBK-A” or “LBK-B” is lit This alarm will activate when a software or manual T1 loopback has been established. Recommended Action (see list below) Possible Cause • • A loopback has been commanded from the VT-100 user interface. ........ 1,2 The “LBK-A” or “LBK-B” button has been pressed. .............................. 1,2 Recommended Actions: 1. 2. Through the VT-100 user interface, deactivate the loopback in the Loopback Menu. Press the “LBK-A” or “LBK-B” button to deactivate the loopback. “AIS/YEL” on T1-A or T1-B is lit The AIS/YEL light will flash for AIS when the DS1/DSX-1 input receives a “blue code” (a string of 2316 1s with no more than one zero). The indicator will remain on (solid) if a YEL signal is present on the T1. Recommended Action (see list below) Possible Cause • • For AIS, the DS1/DSX-1 equipment is sending a “blue code” (all 1s) to the T1 input. ............................................................................. 1,2 For YEL, the received T1 is receiving a yellow signal from the far-end T1, indicating the far-end T1 is RED. .........................................3-5 Recommended Actions: 1. 2. 3. 4. 5. Reset the T1 equipment and verify normal operation. Verify the presence of a DS1/DSX-1 signal at the T1 monitor jack using a T1 test set. Check the far-end equipment for alarms or a red condition. Check the T1 connections at the far-end equipment. Reset the far-end equipment. TRACER 2xT1 User’s Manual Preliminary 39 61280003L2-1B Section 4 Troubleshooting IMPORTANT If problems persist after you have followed the Recommended Actions, contact ADTRAN Technical Support at (800) 726-8663. “AIS/YEL” indicator is flashing This alarm is activated when the T1 interface at the remote end is not receiving a T1 signal (it is in Red alarm). In this circumstance the interface with the flashing AIS/YEL indicator is transmitting an AIS (keep alive) signal. Recommended Action (see list below) Possible Cause • • No DS1/DSX-1 signal or a degraded DS1/DSX-1 signal is present at the DS1/DSX-1 input. .......................................................................... 1,2 The connection at the T1 input or DS1/DSX-1 equipment is faulty. .......... 2 Recommended Actions: 1. 2. Verify the presence of a DS1/DSX-1 signal at the T1 monitor jack using a T1 test set. Verify that all cables and connectors are properly wired. No “Power” Light Recommended Action (see list below) Possible Cause • • DC voltage is not applied. ..................................................................... 1,2,4 The polarity of the power connection is reversed. ...................................... 2 • • The AC transformer is not functioning properly. ..................................... 3,4 The AC transformer is not connected to the DC jack on the BBP, or not connected to AC outlet. .................................................................. 3,4 Recommended Actions: 1. 2. 3. 4. 40 Verify that the DC voltage is between 21-60 VDC (±). Verify that negative voltage is applied to the negative terminal, and positive voltage applied to the positive terminal. Verify that the “Power” light is lit on the AC transformer. Verify that the AC transformer is connected to an AC power cord on the transformer, and connected to the DC jack on the BBP. Verify that the AC power cord is connected to an AC outlet. Verify that the AC outlet has proper AC voltage present. Preliminary TRACER 2xT1 User’s Manual 61280003L2-1B Section 4 Troubleshooting IMPORTANT If problems persist after you have followed the Recommended Actions, contact ADTRAN Technical Support at (800) 726-8663. “Test” light is lit or blinking The test alarm will remain on (solid) during power-up, indicating a self-test is in progress. The light will flash or remain on (solid) if the self-test fails. Recommended Action (see list below) Possible Cause • • • • • One-flash interval indicates a RAM test failure. ......................................... 1 Two-flash interval indicates the T1-C mux failed internal test. .................. 1 Three-flash interval indicates the T1-A framer failed. ................................ 1 Four-flash interval indicates the T1-B framer failed. .................................. 1 Five-flash interval indicates a DSP failure. ................................................. 1 • On (solid) indicates a faulty internal component. ....................................... 1 Recommended Actions: 1. Replace the BBP or the RFC. “TST” light is lit after pressing “Remote Test” button The Remote Test light will activate during a remote test in progress. The Remote Test performs a 10-second bit error rate test (BERT) over the RF link to the far-end. Recommended Action (see list below) Possible Cause • A Remote Test has been activated from the front panel “Remote Test” button or the VT-100 user interface. ........................................................... 1 Recommended Actions: 1. Allow the remote test to complete. If the Remote Test Fail light does not activate, the remote test passed. If the Remote Test Fail light activates, see section on FAIL light is lit after pressing Remote Test button. TRACER 2xT1 User’s Manual Preliminary 41 61280003L2-1B Section 4 Troubleshooting IMPORTANT If problems persist after you have followed the Recommended Actions, contact ADTRAN Technical Support at (800) 726-8663. “Fail” light is lit after pressing “Remote Test” button The Remote Fail light will activate after a Remote Test has failed. Recommended Action (see list below) Possible Cause • • The 10-second BERT has failed over the RF link to the far-end. ............... 1 The RX power may be below or near the -91 dbm threshold (-90 dBm 5.8 GHz) ....................................................................................... 1 Recommended Actions: 1. Check the RX power level using the VT-100 user interface or the RSSI DC voltage test points. Verify the RX power is between -55 and -91 dBm (-90 dBm 5.8 GHz). “RF Low” light is on This alarm will activate if the RX power is below -80 dbm. Recommended Action (see list below) Possible Cause • • • • The RX power is below -80 dBm. ..................................................... 1-5,7,8 The far-end transmitter is off, or is transmitting low power. ............ 2-5,7,8 The RF path is not aligned. ....................................................................... 3,8 Water is in the antenna feedhorn or connectors. ...................................... 4,8 Recommended Actions: 1. 2. 3. 4. 5. 6. 7. 8. 42 Verify the RX power is between -55 and -91 dBm (-90 dBm 5.8 GHz) using the VT-100 user interface or RSSI DC voltage test points. Check the far-end transmitter for operation and proper transmit power. Check the RF path using a spectrum analyzer or RSSI voltages for proper alignment. Have path professionally re-aligned and check system path engineering. Check the antenna feedhorn and all outdoor connections for water. Check all connections between the BBP, the RFC, and the antenna. Check the IF and RF cables for shorts. Check the connections inside the mastmount or rackmount RFC. Replace the RFC. Preliminary TRACER 2xT1 User’s Manual 61280003L2-1B Section 4 Troubleshooting IMPORTANT If problems persist after you have followed the Recommended Actions, contact ADTRAN Technical Support at (800) 726-8663. Troubleshooting Using the VT-100 User Interface This section provides information for troubleshooting the Alarm Menu on the VT-100 user interface. The conditions present in the Alarm Menu are software indications and should match the front panel LED indications. RED Alarm This alarm will activate when there is no signal present at the T1 interface. This alarm is the same as a RED alarm on the front panel. Recommended Action (see list below) Possible Cause • • No DS1/DSX-1 signal or a degraded DS1/DSX-1 signal is present at the DS1/DSX-1 input. ........................................................................... 1,2 The connection at the T1 input or DS1/DSX-1 equipment is faulty. .......... 2 Recommended Actions: 1. 2. Verify the presence of a DS1/DSX-1 signal at the T1 monitor jack using a T1 test set. Verify that all cables and connectors are correctly wired. BPV Alarm The BPV alarm will activate whenever the incoming T1 stream presents BPVs. Recommended Action (see list below) Possible Cause • • The incoming T1 contains BPVs or errors. ................................................. 1 The line codes between the DS1/DSX-1 equipment and the TRACER are incompatible. ......................................................................... 2 Recommended Actions: 1. 2. Check the incoming DS1/DSX-1 signal for BPVs using a T1 test set. Correct the line code on the TRACER or DS1/DSX-1 equipment. TRACER 2xT1 User’s Manual Preliminary 43 61280003L2-1B Section 4 Troubleshooting IMPORTANT If problems persist after you have followed the Recommended Actions, contact ADTRAN Technical Support at (800) 726-8663. YEL/AIS Alarm This alarm indicator will flash when a T1 Yellow alarm occurs. The indicator will remain on (solid) to indicator an AIS alarm when the DS1/DSX-1 is receiving a blue code (a string of 2316 1’s with no more than 1 zero). Recommended Action (see list below) Possible Cause • • The DS1/DSX-1 equipment is sending a “blue code” (all 1’s) to the T1 input. .......................................................................................... 1,2 The far-end equipment is in a red condition and transmitting a yellow alarm. .....................................................................3-5 Recommended Actions: 1. 2. 3. 4. 5. Reset the upstream equipment and verify normal operation. Verify the presence of a DS1/DSX-1 signal at the T1 monitor jack using a T1 test set. Check the far-end equipment for alarms or a red condition. Check the T1 connections at the far-end equipment. Reset the far-end equipment. RF Link Alarm or Code Sync Alarm The RF Link Alarm will activate when the link is down or not operational. The Code Sync Alarm will activate when data synchronization has not been achieved between the RF link. Recommended Action (see list below) Possible Cause 44 • • The RF link is down. ..............................................................................1-10 The RX power is below the -91 dbm threshold. .............................. 1-4,7-10 • • • • • • • • The far-end transmitter is off, or is transmitting low power. .......... 1-4,7-10 The RF path is not aligned. .................................................................. 1,3,10 Water is in the antenna feedhorn or connectors. ...................................... 1,4 Both units are set to the same frequency. ............................................... 5,10 Both units are not set to the same PN code. ................................................ 6 The connection between the BBP and the RFC is faulty. .................. 1,7-10 The connection between the RFC and the antenna is faulty. ............. 1,7-10 The BBP or RFC is faulty. ......................................................................... 10 Preliminary TRACER 2xT1 User’s Manual 61280003L2-1B Section 4 Troubleshooting IMPORTANT If problems persist after you have followed the Recommended Actions, contact ADTRAN Technical Support at (800) 726-8663. Recommended Actions: 1. 2. 3. Check the RX power using the VT-100 user interface or RSSI voltage. Check the far-end transmitter for operation and proper transmit power. Check the RF path using a spectrum analyzer or RSSI voltages for proper alignment. Have path professionally re-aligned and check system path engineering. 4. Check the antenna feedhorn and all outdoor connections for water. 5. Verify both ends have same antenna polarization. 6. Change the frequency of one radio through the VT-100 user interface or front panel button. 7. Set both units to the same PN code. 8. Check all connections between the BBP, the RFC, and the antenna. 9. Check the IF and RF cables for shorts. 10. Check connections inside the mastmount or rackmount RFC. 11. Replace the RFC. Carrier Sync Alarm or T1 Mux Framer Alarm The Carrier Sync alarm will activate when frequency synchronization has not been achieved between the RF link. The T1 Mux Framer alarm will activate when synchronization between the T1 mux on each radio has not been achieved. Recommended Action (see list below) Possible Cause • • • • • • The RF link is down. ..............................................................................1-10 The RX power is below the -91 dBm threshold (-90 dBm 5.8 GHz)..1-4,7-10 The far-end transmitter is off, or is transmitting low power. .......... 1-4,7-10 The RF path is not aligned. .................................................................. 1,3,10 Water is in the antenna feedhorn or connectors. ...................................... 1,4 Both units are set to the same frequency. ............................................... 5,10 • • • • Both units are not set to the same PN code. ................................................ 6 The connection between the BBP and the RFC is faulty. .................. 1,7-10 The connection between the RFC and the antenna is faulty. ............. 1,7-10 The BBP or RFC is faulty. ......................................................................... 10 TRACER 2xT1 User’s Manual Preliminary 45 61280003L2-1B Section 4 Troubleshooting IMPORTANT If problems persist after you have followed the Recommended Actions, contact ADTRAN Technical Support at (800) 726-8663. Recommended Actions: 1. 2. 3. Check the RX power using the VT-100 user interface or RSSI voltage. Check the far-end transmitter for operation and proper transmit power. Check the RF path using a spectrum analyzer or RSSI voltages for proper alignment. Have path professionally re-aligned and check system path engineering. 4. Check the antenna feedhorn and all outdoor connections for water. 5. Verify both ends have same antenna polarization. 6. Change the frequency of one radio through the VT-100 user interface or front panel button. 7. Set both units to the same PN code. 8. Check all connections between the BBP, the RFC, and the antenna. 9. Check the IF and RF cables for shorts. 10. Check connections inside the mastmount or rackmount RFC. 11. Replace the RFC. ES Values in T1 Status Menu This value indicates the number of Errored Seconds in the T1 data stream. Recommended Action (see list below) Possible Cause • • In an AMI-coded T1, a BPV or frame bit error has occurred. .................... 1 In an ESF-coded T1, a BPV or CRC error has occurred. ............................ 1 Recommended Actions: 1. Check the T1 signal with a BERT test set to determine origin of error. SES Values in History Menu This value indicates the number of Severely Errored Seconds in the T1 data stream. Recommended Action (see list below) Possible Cause • • In an AMI-coded T1, 1544 BPVs or 8 frame bit errors have occurred. ..... 1 In an ESF-coded T1, 1544 BPVs or 320 CRC errors have occurred. ......... 1 Recommended Action: 1. 46 Check the T1 signal with a BERT test set to determine origin of error. Preliminary TRACER 2xT1 User’s Manual SECTION 5 SPECIFICATIONS This section lists the specifications for the TRACER system. Transmitter Output Power ...... +20 dBm, max, for 1 watt 2.4 GHz, factory setting is +27 dBm Frequency Range ............................... 2400 to 2483.5 MHz, or 5725 to 5850 MHz Channel Bandwidth ...... 40 MHz (2.4 GHz) (two channels) or 62 MHz (5.7 GHz) I/F ........................................................................................................... 140 MHz Receiver Receive Level, range ... -30 to -91 dBm (-90 dBm, 5.8 GHz) (10-6 BER minimum) Receive Level, maximum .......................................................................... -30 dBm Receive Level, nominal ............................................................................. -60 dBm IF ............................................................................................................. 70 MHz Frequency Plan Plan A Plan B Plan A Plan B 2.4 GHz ...................................................... Tx 2.422 GHz, Rx 2.462 GHz 2.4 GHz ....................................................... Tx 2.462 GHz, Rx 2.422 GHz 5.8 GHz ........................................................ Tx 5747 GHz, Rx 5827 GHz 5.8 GHz ......................................................... Tx 5827 GHz, Rx 5747 GHz Spread Spectrum Data Pump Modulation .................................................................................................... QPSK Spreading Method ......................................................................... Direct sequence Code Length ............................................................................................... 120 bits Processing Gain ........................................................................................... >12 dB Number of Codes ................................................................................................ 10 Chipping Rate ............................................................................................ 12 times Interface Specifications Capacity ......................................................................................................... 2 x T1 Connection .................................................................................... RJ-48C, bantam Line Code ............................................................................................. AMI, B8ZS Framing ...................................................................................................... SF, ESF Alarms ............................................................................. AIS, Red, Yellow, BPVs Loopbacks ......................................................... Local and remote, per T1 channel User Interface Front Panel ........................ Alarm LEDs, Configuration Switches, Monitor Jacks Diagnostics .................................. T1 Loopback, Remote Test with built-in BERT Test Points ....................................... RSSI, System Voltages, QPSK Constellation VT-100 Terminal......... Menu-Driven User Interface, Control of the Remote End, Password Protected (Optional), Event History TRACER 2xT1 User’s Manual Preliminary 47 61280003L2-1B Section 5 Specifications VT-100 Terminal Interface Data Rate ............................................................................................... 9600 bps Data Bits ............................................................................................................. 8 Parity ........................................................................................................... None Stop Bits ............................................................................................................. 1 Terminal Emulation................................................................................. VT-100 Mechanical & Environmental Baseband Processor Operating Temperature ................................................................. -25°C to 65°C Size ........................................................................................ 19" x 1.75" x 10.5" Humidity ........................................................................... 95%, Non-condensing Weight ......................................................................................................... 6 lbs. Rack RFC Operating Temperature ................................................................. -40°C to 65°C Size ........................................................................................ 19" x 1.75" x 11.5" Humidity ........................................................................... 95%, Non-condensing Weight ......................................................................................................... 6 lbs. Mast Unit Operating Temperature ................................................................. -40°C to 65°C Size .................................................................................. 21" high x 9" diameter Humidity ......................................................................................................100% Weight ....................................................................................................... 18 lbs. Power Input Voltage ................ 21 to 60 volts DC, either polarity referenced to ground Power Consumption ............................................................................... 30 watts Connector ..... 3 pin DIN (AC adapter), 3 pin screw clamp terminal block (DC) 48 Preliminary TRACER 2xT1 User’s Manual SECTION 6 WARRANTY, ORDERING AND RETURN WARRANTY ADTRAN will replace or repair this product within five years from the date of shipment if it does not meet its published specifications or fails due to defects in materials and workmanship. For detailed warranty, repair, and return information, refer to the ADTRAN Equipment Warranty, Repair, and Return Policy and Procedure located on the ADTRAN web site at http://www.adtran.com. SALES For TRACER sales information, contact Adtran Sales at: (888) 3ADTRAN or http://www.adtran.com/wireless TECHNICAL SUPPORT Standard support hours are 7 a.m. to 7 p.m. CST, Monday through Friday. Emergency technical support is available 24 hours a day, seven days a week. For technical support at any time, contact ADTRAN at: (800) 726-8663 REPAIRS AND RETURNS Return Material Authorization (RMA) is required prior to returning equipment to ADTRAN. For RMA information, contact ADTRAN at: (800) 726-8663 or ADTRAN, Inc. Customer Service Department P.O. Box 140000 / 901 Explorer Boulevard Huntsville, Alabama 35814-4000 When returning faulty equipment, please include the RMA number on the shipping label. TRACER 2xT1 User’s Manual Preliminary 49 61280003L2-1B Section 6 Warranty, Ordering and Return Information 50 Preliminary TRACER 2xT1 User’s Manual GLOSSARY ACRONYMS USED IN THIS MANUAL AMI ........................................................ Alternate Mark Inversion B8ZS ....................................................... Bipolar 8 zero substitution BER ........................................................ Bit error rate BBP ........................................................ Baseband Processor CRC ........................................................ Cyclic Redundancy Check DCE ........................................................ Data Communications Equipment DTE ........................................................ Data Terminal Equipment ESF ......................................................... Extended superframe FCC ........................................................ Federal Communications Commission FEC ......................................................... Forward error correction IF ......................................................... Intermediate Frequency ISM ......................................................... Industrial, Scientific, and Medical LBK ........................................................ Loopback QPSK ...................................................... Quadrature Phase Shift Keying RF ......................................................... Radio frequency RFC ........................................................ Radio frequency converter RSSI ........................................................ Received signal strength indicator Rx ......................................................... Receive SF ......................................................... Superframe Tx ......................................................... Transmit TRACER 2xT1 User’s Manual Preliminary 51 61280003L2-1B Glossary 52 Preliminary TRACER 2xT1 User’s Manual APPENDIX A CABLE CONNECTIONS The cable connections required for various configurations are detailed below. Terminal Connection (DB25) TRACER (DCE) Number Name Terminal (DTE) Number Name 2 .............. TXD 3 .............. RXD 4 .............. RTS 5 .............. CTS 6 .............. DSR 7 ............ Ground 2 ............. TXD 3 ............. RXD 4 .............. RTS 5 .............. CTS 6 ............. DSR 7 ........... Ground Personal Computer Connection (DB9) TRACER (DCE) Number Name Computer (DTE) Number Name 2 .............. TXD 3 .............. RXD 4 .............. RTS 5 .............. CTS 6 .............. DSR 7 ............ Ground 3 ............. TXD 2 ............. RXD 7 .............. RTS 8 .............. CTS 6 ............. DSR 5 ........... Ground Modem Connection (DB25) TRACER (DCE) Number Name Modem (DCE) Number Name 2 .............. TXD 3 .............. RXD 4 .............. RTS 5 .............. CTS 6 .............. DSR 7 ............ Ground 3 ............. RXD 2 ............. TXD 5 .............. CTS 4 .............. RTS 20 ............ DTR 7 ........... Ground TRACER 2xT1 User’s Manual Preliminary 61280003L2-1B Appendix A Cable Connections TELEMETRY BYTE ORIENTED SERIAL (TBOS) MANAGEMENT CONNECTIONS (RJ48) TBOS operates via RS422, therefore the inputs and outputs are differential pairs. The pinout for the MANAGEMENT IN port is: pin 1 - Transmit- (out of TRACER) pin 3 - Transmit+ (out of TRACER) pin 5 - Receive- (in to TRACER) pin 7 - Receive+ (in to TRACER) The pinout for the MANAGEMENT OUT port is: pin 1 - Receive- (in to TRACER) pin 3 - Receive+ (in to TRACER) pin 5 - Transmit- (out of TRACER) pin 7 - Transmit+ (out of TRACER) The rear panel connectors are on a double-stack RJ45, so the pin numbers are opposite of each other: A TBOS monitoring system will need to define the following bitmaps to indicate status and alarm conditions. PIN 8 PIN 1 _______ ______| |______ | MANAGEMENT OUT | (TOP CONNECTOR) |_|_|_|_|_|_|_|_|_| PIN 1 ___________________ |_|_|_|_|_|_|_|_|_| PIN 8 | MANAGEMENT IN | (BOTTOM CONNECTOR) |_____ ______| |____| Figure 3-1. Rear Panel Connectors II Preliminary TRACER 2xT1 User’s Manual
Source Exif Data:
File Type : PDF File Type Extension : pdf MIME Type : application/pdf PDF Version : 1.3 Linearized : No Create Date : 2000:06:09 00:31:34 Producer : Acrobat Distiller 4.0 for Macintosh Author : money Creator : PageMaker 6.5 Title : Title page Modify Date : 2000:08:14 10:06:57-04:00 Page Count : 64EXIF Metadata provided by EXIF.tools