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ADTRAN Tracer TRACER 2 x E1 manual

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Table of contents for the manual

  • Page 1

    TRACER 2 x E1 User ’s Manual, 2001 61280004L2-1C TRACER ® 2 x E1 User ’ s Manual[...]

  • Page 2

    TRACER 2 x E1 User ’s Manual, 2001 61280004L2-1C[...]

  • Page 3

    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 desi[...]

  • Page 4

    TRACER 2 x E1 User’s Manual 61280004L2-1C Radio Frequency Interference Statement ii • 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 p[...]

  • Page 5

    TRACER 2 x E1 User ’s Manual 61280004L2-1C T able of Contents iii Page Section 1. Tracer Description Introduction .................................................................................................................................... 1 Applications ......................................................................................[...]

  • Page 6

    TRACER 2 x E1 User’s Manual 61280004L2-1C T able of Contents iv E1 Interfaces ..................................................................................................................... 13 Link Planning ............................................................................................................................... 14 Ante[...]

  • Page 7

    TRACER 2 x E1 User ’s Manual 61280004L2-1C T able of Contents v Main Menu Screen ...................................................................................................... 27 E1 Status / Configuration / Loopback Screen ............................................................ 28 Link Performance History ............................[...]

  • Page 8

    TRACER 2 x E1 User’s Manual 61280004L2-1C T able of Contents vi Carrier Sync Status or E1 Mux Sync Status ............................................................... 41 RFC Link Up Status ................................................................................................... 42 ES Values in E1A or E1B Performance History Menu ....[...]

  • Page 9

    TRACER 2 x E1 User ’s Manual 61280004L2-1C T able of Contents vii Illustrations Figure 1-1. Typical Application ................................................................................................. .1 Figure 1-2. Bandwidth Division ................................................................................................. 2 Figu[...]

  • Page 10

    TRACER 2 x E1 User’s Manual 61280004L2-1C T able of Contents viii[...]

  • Page 11

    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 mi[...]

  • Page 12

    TRACER 2 x E1 User’s Manual 61280004L2-1C Section 1 TRACER Description 2 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 tim[...]

  • Page 13

    TRACER 2 X E1 User ’ s Manual 61280004L2-1C Section 1 TRACER Description 3 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[...]

  • Page 14

    TRACER 2 x E1 User ’ s Manual 61280004L2-1C Section 1 TRACER Description 4 A block diagram of the BBP is shown in Figure 1-5 . 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 Source Transmit [...]

  • Page 15

    TRACER 2 X E1 User ’ s Manual 61280004L2-1C Section 1 TRACER Description 5 • Loss of signal • Code violation • CRC error • Framing error • Remote alarm • UA1 A seven-day error history of the E1 interfaces and radio link is also provided. Fifteen-minute histories are provided for the most recent 24 hours of operation. The status of the[...]

  • Page 16

    TRACER 2 x E1 User ’ s Manual 61280004L2-1C Section 1 TRACER Description 6 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. LEDs indicating overall system integrity are listed below. Self Test .................................... Blinking red if the sel[...]

  • Page 17

    TRACER 2 X E1 User ’ s Manual 61280004L2-1C Section 1 TRACER Description 7 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 .............. Red if the[...]

  • Page 18

    TRACER 2 x E1 User ’ s Manual 61280004L2-1C Section 1 TRACER Description 8 Built-In T ests 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. The remote unit will then send a pse[...]

  • Page 19

    TRACER 2 X E1 User ’ s Manual 61280004L2-1C Section 1 TRACER Description 9 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 [...]

  • Page 20

    TRACER 2 x E1 User ’ s Manual 61280004L2-1C Section 1 TRACER Description 10 Figure 1-11. Mastmount RFC Housing Up Angle V iew Eye Level V iew WARNING Mounting Clearances Housing Assembly and Guide for Mounting Bracket Holes Antenna Selection TRACER is intended to be coupled with an antenna that is directional (thus providing signal gain). There a[...]

  • Page 21

    TRACER 2 x E1 User ’s Manual 61280004L2-1C Section 2 Installation 11 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 [...]

  • Page 22

    TRACER 2 x E1 User’s Manual 61280004L2-1C Section 2 Installation 12 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 conducto[...]

  • Page 23

    TRACER 2 x E1 User ’s Manual 61280004L2-1C Section 2 Installation 13 E1 Interfaces The E1 interface conforms to the ITU G.703 and G.704 electrical and signaling interfaces recommendations. Two interfacing configurations are available: • 75 Ω unbalanced BNC coaxial connectors. • 120 Ω balanced 15 pin / RJ48 connectors with the pinouts show[...]

  • Page 24

    TRACER 2 x E1 User’s Manual 61280004L2-1C Section 2 Installation 14 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 [...]

  • Page 25

    TRACER 2 x E1 User ’s Manual 61280004L2-1C Section 2 Installation 15 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[...]

  • Page 26

    TRACER 2 x E1 User’s Manual 61280004L2-1C Section 2 Installation 16 Path Loss The free space path loss is given by Loss(dB) = 96.6 + 20 log 10 f + 20log 10 D * 1.609344 where D is distance in kilometers f is operating frequency in GHz A tabulation of various path loss is given below. Path Availability The availability of a path can be expressed b[...]

  • Page 27

    TRACER 2 x E1 User ’s Manual 61280004L2-1C Section 2 Installation 17 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 + _______ Path Loss - ____[...]

  • Page 28

    TRACER 2 x E1 User’s Manual 61280004L2-1C Section 2 Installation 18 SETTING THE RFC FREQUENCY PLAN ON NON 1 WATT 2.4 GH Z MODELS 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. Plan B corres[...]

  • Page 29

    TRACER 2 x E1 User ’s Manual 61280004L2-1C Section 2 Installation 19 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 RF converter Tx connected to RF converter Tx connec[...]

  • Page 30

    TRACER 2 x E1 User’s Manual 61280004L2-1C Section 2 Installation 20 SETTING THE RFC FREQUENCY PLAN ON 5.8 GH Z MODELS 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 diplex[...]

  • Page 31

    TRACER 2 x E1 User ’s Manual 61280004L2-1C Section 2 Installation 21 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 [...]

  • Page 32

    TRACER 2 x E1 User’s Manual 61280004L2-1C Section 2 Installation 22 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: 1. If more than one system in the same frequency band is transmitting from the same location, set[...]

  • Page 33

    TRACER 2 x E1 User ’s Manual 61280004L2-1C Section 2 Installation 23 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” in[...]

  • Page 34

    TRACER 2 x E1 User’s Manual 61280004L2-1C Section 2 Installation 24[...]

  • Page 35

    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” and “L” keys will redraw the current screen. If password access has been enabled, then press “Ente[...]

  • Page 36

    TRACER 2 x E1 User’s Manual 61280004L2-1C Section 3 Operation 26 MAIN MENU SELECTIONS System Status Screen The screen in Figure 3-1 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 (Figure 3-2). The upper portion of t[...]

  • Page 37

    TRACER 2 x E1 User ’s Manual 61280004L2-1C Section 3 Operation 27 Main Menu Screen Pressing “M” on any screen will take the user to the Main Menu (see Figure 3-2 ), from which the subsequent screens can be accessed. To make changes to any of the items in the System Configuration Menu ( Figure 3-3) , use the keyboard Arrow keys to highlight de[...]

  • Page 38

    TRACER 2 x E1 User’s Manual 61280004L2-1C Section 3 Operation 28 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 [...]

  • Page 39

    TRACER 2 x E1 User ’s Manual 61280004L2-1C Section 3 Operation 29 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 a[...]

  • Page 40

    TRACER 2 x E1 User’s Manual 61280004L2-1C Section 3 Operation 30 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 mos[...]

  • Page 41

    TRACER 2 x E1 User ’s Manual 61280004L2-1C Section 4 T roubleshooting 31 GENERAL If you experience a problem with the TRACER system, check to ensure that all connectors, coaxial cables, antennas, and E1s are all properly connected; and that the system configuration ensures proper transmit and receive levels for the RF equipment. Then, if the prob[...]

  • Page 42

    TRACER 2 x E1 User’s Manual 61280004L2-1C Section 4 T roubleshooting 32 Recommended Actions: 1. Check the RX power using the VT100 user interface or RSSI voltage. 2. Check the far-end transmitter for operation and proper transmit power. 3. Check the RF path using a spectrum analyzer or RSSI voltages for proper alignment. Have path professionally [...]

  • Page 43

    TRACER 2 x E1 User ’s Manual 61280004L2-1C Section 4 T roubleshooting 33 “LBK-A” or “LBK-B” is Lit This indicator will activate when a software or front panel command E1 loopback has been established. Recommended Action Possible Cause (see list below) • A loopback has been commanded from the VT100 user interface. ......... 1,2 • The ?[...]

  • Page 44

    TRACER 2 x E1 User’s Manual 61280004L2-1C Section 4 T roubleshooting 34 ALM is Lit When the ALM light is on (solid), it indicates reception of an UA1 signal at the E1 interface. If the “ ALM ” is blinking, it indicates an RRA alarm has been received. Recommended Action Possible Cause (see list below) • TRACER has received an unframed all 1s[...]

  • Page 45

    TRACER 2 x E1 User ’s Manual 61280004L2-1C Section 4 T roubleshooting 35 “T est” 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 Possible Cause (see list below) • One-flash interval indi[...]

  • Page 46

    TRACER 2 x E1 User’s Manual 61280004L2-1C Section 4 T roubleshooting 36 I M P O R T A N T 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 T est” Button The Remote Fail light will activate after a Remote Test has failed. [...]

  • Page 47

    TRACER 2 x E1 User ’s Manual 61280004L2-1C Section 4 T roubleshooting 37 I M P O R T A N T 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 use[...]

  • Page 48

    TRACER 2 x E1 User’s Manual 61280004L2-1C Section 4 T roubleshooting 38 OOF Alarm The OOF alarm is indicated on the E1A or E1B Status/Configuration/Loopback page. Recommended Action Possible Cause (see list below) • The E1 signal has lost framing sync ............................................................ 1 • The line codes between the [...]

  • Page 49

    TRACER 2 x E1 User ’s Manual 61280004L2-1C Section 4 T roubleshooting 39 Recommended Actions: 1. Check the far-end equipment for alarms or a LOS condition. 2. Check the E1 connections at the far-end equipment. 3. Reset the far-end equipment. UA1 Alarm This alarm is indicated on the E1A or E1B Status/Configuration/Loopback page. Recommended Action[...]

  • Page 50

    TRACER 2 x E1 User’s Manual 61280004L2-1C Section 4 T roubleshooting 40 Code Sync Status The Code Sync Status will indicate NO on the TRACER System Status page when the link is down or not operational. The Code Sync Status will indicate NO when data synchronization has not been achieved between each end of the RF link. Recommended Action Possible[...]

  • Page 51

    TRACER 2 x E1 User ’s Manual 61280004L2-1C Section 4 T roubleshooting 41 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. The E1 Mux Sync Status will indicate NO on the TRACER System Status p[...]

  • Page 52

    TRACER 2 x E1 User’s Manual 61280004L2-1C Section 4 T roubleshooting 42 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. Recommended Action Possible Cause (see list below) • Failure of the IF cable. ..................................................[...]

  • Page 53

    TRACER 2 x E1 User ’s Manual 61280004L2-1C Section 4 T roubleshooting 43 SES V alues 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. • When CRC is[...]

  • Page 54

    TRACER 2 x E1 User’s Manual 61280004L2-1C Section 4 T roubleshooting 44[...]

  • Page 55

    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

    TRACER 2 x E1 User’s Manual 61280004L2-1C Section 5 Specifications 46 Test Points ............................................ RSSI, QPSK Constellation VT100 Terminal ................................... Menu-Driven User Interface, Control of the Remote End, Password Protected (Optional), Event History VT100 Terminal Interface Data Rate ..........[...]

  • Page 57

    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[...]

  • Page 58

    TRACER 2 x E1 User’s Manual 61280004L2-1C Section 6 W arranty , Ordering and Return Information 48[...]

  • Page 59

    ACRONYMS USED IN THIS MANUAL AMI ........................................................ Alternate Mark Inversion BER ........................................................ Bit Error Rate BBP ........................................................ Baseband Processor CRC ........................................................ Cyclic Redundancy [...]

  • Page 60

    TRACER 2 x E1 User’s Manual 61280004L2-1C Glossary 50[...]

  • Page 61

    The cable connections required for various configurations are detailed below. Terminal Connection (DB-25) Tracer (DCE) Terminal (DTE) Number Name Number Name 2 .............. TXD 2 ............. TXD 3 .............. RXD 3 ............. RXD 4 .............. RTS 4 .............. R TS 5 .............. CTS 5 .............. CT S 6 .............. DSR 6 .[...]

  • Page 62

    TRACER 2 x E1 User ’s Manual 61280004L2-1C Appendix A Cable Connections A-2[...]