ADTRAN Tracer TRACER 2 x E1 User Manual

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TRACER

2 x E1

User's Manual

TRACER 2 x E1 User's Manual, 2001

61280004L2-1C

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Page 1 ® TRACER 2 x E1 User’s Manual TRACER 2 x E1 User’s Manual, 2001 61280004L2-1C...
Page 2 61280004L2-1C TRACER 2 x E1 User’s Manual, 2001...
Page 3 Connect the equipment and the affected receiver to power outlets on separate circuits. • Consult the dealer or an experienced radio/TV technician for help. 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.
Page 4: Radio Frequency Interference Statement
61280004L2-1C 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 15 feet (4.6 meters). Installation on towers, masts, or rooftops not accessible to the general population is recommended;...
Page 5 61280004L2-1C Table of Contents Page Section 1. Tracer Description Section 2. Installation TRACER 2 x E1 User’s Manual...
Page 6 61280004L2-1C Table of Contents Section 3. Operation TRACER 2 x E1 User’s Manual...
Page 7 61280004L2-1C Table of Contents Section 4. Troubleshooting Link Down TRACER 2 x E1 User’s Manual...
Page 8 61280004L2-1C Table of Contents Section 5. Specifications Section 6. Warranty, Ordering and Return Information Glossary Appendix A. TRACER 2 x E1 User’s Manual...
Page 9 61280004L2-1C Table of Contents Illustrations TRACER 2 x E1 User’s Manual...
Page 10 61280004L2-1C Table of Contents viii TRACER 2 x E1 User’s Manual...
Page 11: Spread Spectrum
TRACER D ESCRIPTION ECTION INTRODUCTION The Dual E1 version of TRACER provides two, individual E1 transports via a 2.4 GHz or 5.8 GHz, direct sequence, spread spectrum microwave link. The transmitter output power is 20 dBm maximum while the receiver sensitivity is -89 dBm @ 2.4 GHz and -87 dBm @ 5.8 GHz. System performance is determined, in part, by the engineering of the microwave link.
Page 12: Section 1 Tracer Description
61280004L2-1C Section 1 TRACER Description 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”...
Page 13: Tracer System Configuration
E1 Interfaces The E1 interfaces conform to the ITU G.703 and G.704 electrical and signaling interface recommendations. Two interfacing configurations are allowed - two pair of BNC coaxial connectors or two 15-pin sub-D connectors and RJ48 connectors. The coaxial connection provides a 75Ω unbalanced connection. The shield of the TX coaxial connection is attached to earth ground.
Page 14 61280004L2-1C Section 1 TRACER Description A block diagram of the BBP is shown in Figure 1-5. RS-232 UART E1 A E1 B Filter IF Interface Board 21-56 VT100 RS-232 Interface An RS-232 interface is provided via a 25-pin D connector for attaching a VT100 compatible terminal. The active signals used on this interface are listed below Signal Name Pin Number Transmit Data ...
Page 15: Controls And Indicators
(RFC). This connection provides the signal, power, and configuration information to the RFC. A coaxial cable (ADTRAN part number 3125RF027 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 the cable has been determined.
Page 16 61280004L2-1C Section 1 TRACER Description TEST CV/CRC POWER LOS/OOF Figure 1-6. BBP Front Panel with Door Closed TEST RESET LBKA Figure 1-7. BBP Front Panel with Door Open As a rule, a green LED indicates a normal situation, a red LED indicates an error situation, and a yellow LED indicates a configuration option.
Page 17: Non-Volatile Memory
The LEDs that indicate error conditions in the spread spectrum data pump and RFC are listed below. All of these LEDs are visible through the front panel. Any one of these LEDs indicates an error condition that precludes system operation. Link Down ...
Page 18 61280004L2-1C Section 1 TRACER Description Built-In Tests The TRACER has several features to aid in site setup and later debugging. These diagnostics include E1 loopbacks and a link test with BERT (Bit Error Rate Test) data. A link test is performed by pressing the test button.
Page 19 The IF connector provides the connection between the baseband processor and the rackmounted or mastmounted RFC. An 8” IF cable (ADTRAN P/N 3125RF027) is provided for rackmount systems. The TO ANTENNA connection provides the connection between the RFC and the antenna.
Page 20: Antenna Selection
61280004L2-1C Section 1 TRACER Description Eye Level View Figure 1-11. Mastmount RFC Housing Antenna Selection TRACER is intended to be coupled with an antenna that is directional (thus providing signal gain). There are several reasons for this requirement: • TRACER operates in point-to-point applications so omnidirectional antennas cannot be used. •...
Page 21: Section 2 Installation
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.
Page 22 61280004L2-1C Section 2 Installation 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.
Page 23 E1 Interfaces The E1 interface conforms to the ITU G.703 and G.704 electrical and signaling interfaces recommendations. Two interfacing configurations are available: • 75Ω unbalanced BNC coaxial connectors. • 120Ω balanced 15 pin / RJ48 connectors with the pinouts shown here. 15 Pin Function E1 Out ring...
Page 24: Link Planning
61280004L2-1C Section 2 Installation Three loopback functions are provided for diagnostic capability of each E1 interface. The local line loopback (Loop 1 as illustrated in Figure 2-1) loops the incoming E1 signal back out at the E1 framer. The remote link loopback (Loop 3 as illustrated in Figure 2-1) loops the E1 data back to the local end from the remote end.
Page 25: Antenna Feedline Loss
Antenna Feedline Loss Feedline loss is a function of feedline type and length. Feedline loss per 30.48 meters (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.
Page 26: Path Availability
61280004L2-1C Section 2 Installation Path Loss The free space path loss is given by Loss(dB) = 96.6 + 20 log A tabulation of various path loss is given below. 2.4 GHz Link Distance Path Loss Link Distance Path Loss (in miles) (in dB) (in miles) 1 ...
Page 27: Setting The Transmitter Power
The nominal received signal level is -60 dBm. For help in link planning, use the path loss calculation worksheet below. - 89 dBm / -87 dBm Minimum Signal Power for 2.4 GHz / 5.8 GHz + _______ Transmitter Feedline Loss - _______ Transmitter Antenna Gain + _______...
Page 28 61280004L2-1C Section 2 Installation SETTING THE RFC FREQUENCY PLAN ON NON 1 WATT 2.4 GH The frequency plan designates on which frequencies the TRACER transmits and receives. Plan A corresponds to a transmitting (Tx) center frequency of 2422 MHz and a receive (Rx) center frequency of 2462 MHz.
Page 29 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 RF converter Tx connected to Diplexer Port J1 RF converter Rx connected to Diplexer Port J2...
Page 30 61280004L2-1C Section 2 Installation SETTING THE RFC FREQUENCY PLAN ON 5.8 GH The 5.8 GHz RFC operates on Plan A, Tx = 5747 MHz center frequency, Rx = 5827 MHz center frequency or Plan B, Tx = 5827 MHz center frequency, Rx = 5747 MHz center frequency. See Figure 2-3 for an illustration of the 5.8 GHz diplexer.
Page 31: Applying Power
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.
Page 32: Co-Locating Multiple Systems
61280004L2-1C Section 2 Installation CO-LOCATING MULTIPLE SYSTEMS When multiple transmitters are to be co-located (installed in the same equipment room or on the same tower), it is advised to set all systems as follows: If more than one system in the same frequency band is transmitting from the same location, set the antenna polarity of one system horizontal and the other system(s) vertical.
Page 33: Alarm Contacts
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 ten seconds. The “Remote TST” indicator will turn yellow and remain on for the duration of the test.
Page 34 61280004L2-1C Section 2 Installation TRACER 2 x E1 User’s Manual...
Page 35: Operation
VT100 USER INTERFACE The TRACER may be accessed with a VT100 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 “Ctrl”...
Page 36: Section 3 Operation
The Code Sync, Carrier Sync, and E1 Mux Sync will all be “yes” for an operational link. Chipping code indicates the code to which the system is set. TRACER SYSTEM STATUS ELAPSED TIME: 00000 DAYS, 00:00:07 ADTRAN TECHNICAL SUPPORT - 256/963-8716 -)#| S | REMOTE TRACER FREQ PLAN A...
Page 37: Main Menu Screen
E1B STATUS/CONFIGURATION/LOOPBACK MENU E1B PERFORMANCE HISTORY Figure 3-2. Main Menu Screen TRACER SYSTEM CONFIGURATION ELAPSED TIME: 00000 DAYS, 00:00:07 LOCAL TRACER REMOTE TRACER ------------- ------------- [###################_] [###################_] [####################] [####################] ADTRAN LOCAL ADTRAN REMOTE ******* ******* CLEAR 61280004L2-1C Section 3 Operation...
Page 38 61280004L2-1C Section 3 Operation E1 Status / Configuration / Loopback The status of the two E1 interfaces is displayed on this screen. Information such as alarm status, signaling, line coding, and CRC4 Detection framing type are shown. From this screen the E1 can be configured for a particular application by using the keyboard cursor keys to highlight the desired option and perform the change.
Page 39 Link Performance History The screen in Figure 3-6 presents detailed error statistics for the RF link. The data is presented as RFC (Radio Frequency Converter) and LNK (RF Link) representing seconds out of service for each. RFC represents the communications channel between the BBP and RFC via the IF interconnect cable. LNK represents errored seconds received on the wireless link and is generally an indication of path or interference problems.
Page 40 61280004L2-1C Section 3 Operation E1A Statistics Page The screen in Figure 3-7 presents detailed error statistics for E1A. The data is presented as Errored Seconds and Severely Errored Seconds. Error History for the most recent 24 hours is recorded in 15-minute increments, and 24-hour totals are recorded for the most recent 7 days.
Page 41: Section 4 Troubleshooting
E1s 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 (011) 256-963-8716.
Page 42 61280004L2-1C Section 4 Troubleshooting If problems persist after you have followed the Recommended Actions, contact ADTRAN Technical Support at (011) 256-963-8716. Recommended Actions: Check the RX power using the VT100 user interface or RSSI voltage. Check the far-end transmitter for operation and proper transmit power.
Page 43: Recommended Action
If problems persist after you have followed the Recommended Actions, contact ADTRAN Technical Support at (011) 256-963-8716. “LBK-A” or “LBK-B” is Lit This indicator will activate when a software or front panel command E1 loopback has been established. Possible Cause •...
Page 44 61280004L2-1C Section 4 Troubleshooting If problems persist after you have followed the Recommended Actions, contact ADTRAN Technical Support at (011) 256-963-8716. ALM is Lit When the ALM light is on (solid), it indicates reception of an UA1 signal at the E1 interface.
Page 45 If problems persist after you have followed the Recommended Actions, contact ADTRAN Technical Support at (011) 256-963-8716. “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.
Page 46 61280004L2-1C Section 4 Troubleshooting If problems persist after you have followed the Recommended Actions, contact ADTRAN Technical Support at (011) 256-963-8716. “Fail” Light is Lit After Pressing “Remote Test” Button The Remote Fail light will activate after a Remote Test has failed.
Page 47 If problems persist after you have followed the Recommended Actions, contact ADTRAN Technical Support at (011) 256-963-8716. Troubleshooting Using the VT100 User Interface This section provides information for troubleshooting the Alarm Menu on the VT100 user interface. The conditions present in the Alarm Menu are software indications and should match the front panel LED indications.
Page 48 61280004L2-1C Section 4 Troubleshooting If problems persist after you have followed the Recommended Actions, contact ADTRAN Technical Support at (011) 256-963-8716. OOF Alarm The OOF alarm is indicated on the E1A or E1B Status/Configuration/Loopback page. Possible Cause • The E1 signal has lost framing sync ... 1 •...
Page 49 If problems persist after you have followed the Recommended Actions, contact ADTRAN Technical Support at (011) 256-963-8716. Recommended Actions: Check the far-end equipment for alarms or a LOS condition. Check the E1 connections at the far-end equipment. Reset the far-end equipment.
Page 50 61280004L2-1C Section 4 Troubleshooting If problems persist after you have followed the Recommended Actions, contact ADTRAN Technical Support at (011) 256-963-8716. Code Sync Status The Code Sync Status will indicate NO on the TRACER System Status page when the link is down or not operational.
Page 51 If problems persist after you have followed the Recommended Actions, contact ADTRAN Technical Support at (011) 256-963-8716. Carrier Sync Status or E1 Mux Sync Status The Carrier Sync status will indicate NO on the TRACER System Status page when frequency synchronization has not been achieved between each end of the the RF Link.
Page 52 61280004L2-1C Section 4 Troubleshooting RFC Link Up Status The RF Link Up Status will indicate NO on the TRACER System Status page when communication between the BBP and RFC has failed. Possible Cause • Failure of the IF cable..1 •...
Page 53 SES Values in E1A or E1B Performance History Menu This value indicates the number of Severely Errored Seconds in the E1 data stream. Possible Cause • When CRC is enabled, a severely errored second is listed when more than 805 CRCs occur within that second.
Page 54 61280004L2-1C Section 4 Troubleshooting TRACER 2 x E1 User’s Manual...
Page 55: Specifications
This section lists the specifications for the TRACER system. Transmitter Output Power 100 mW Transmitter ... +20 dBm, maximum 1 W Transmitter ... +30 dBm, maximum (Factory preset to +27 dBm) Frequency Range ... 5725 to 5850 MHz or 2400 to 2483.5 MHz Channel Bandwidth ...
Page 56: Vt100 Terminal Interface
61280004L2-1C Section 5 Specifications Test Points ... RSSI, QPSK Constellation VT100 Terminal ... Menu-Driven User Interface, Control of the Remote End, VT100 Terminal Interface Data Rate ... 9600 bps Data Bits ... 8 Parity ... None Stop Bits ... 1 Terminal Emulation...
Page 57: Warranty
ECTION 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 (P/N 60000116-10) located on the ADTRAN web site at http://www.adtran.com.
Page 58 61280004L2-1C Section 6 Warranty, Ordering and Return Information TRACER 2 x E1 User’s Manual...
Page 59: Acronyms Used In This Manual
LOSSARY ACRONYMS USED IN THIS MANUAL AMI ... Alternate Mark Inversion 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 ...
Page 60 61280004L2-1C Glossary TRACER 2 x E1 User’s Manual...
Page 61: Cable Connections
The cable connections required for various configurations are detailed below. Terminal Connection (DB-25) Tracer (DCE) Number Name 2 ... TXD 3 ... RXD 4 ... RTS 5 ... CTS 6 ... DSR 7 ... Ground Personal Computer Connection (DB-9) Tracer (DCE) Number Name 2 ...
Page 62 61280004L2-1C Appendix A Cable Connections TRACER 2 x E1 User’s Manual...

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