ADTRAN D4 TRDDB Quick Manual

ADTRAN D4 TRDDB Quick Manual Manual pdf 1 page image

3. Insert the TRDDB into its designated slot ensuring the edge connector seats firmly into the backplane.4. After insertion the TRDDB will run a self-test and synchronization phase during which all LEDsundergo an On/Off sequence. Refer to Status LEDs for descriptions.5. After synchronization, which may take up to 90 seconds, the following LED indication will show: SYNC LED - Green All other LEDs will be Off until network occurrences cause them to turn On.If LEDs in step 5 are as noted, proceed with loop testing per specifications.If LEDs in step 5 are in any other configuration, refer to TROUBLESHOOTING GUIDE.Hardware vs Software ProvisioningWhen SW1 is used for option selection those options take effect when the card is first inserted in thechannel bank. Subsequent software provisioning can override hardware options. Depressing the APpushbutton will toggle between the hardware and software option set. Option changes to either set canbe made when the set is active or inactive.Typical Multipoint DeploymentCONTROL PORT OPERATIONThe TRDDB can be remotely controlled via the craft interface on the TROCU-R. The terminal interfaceoperates at baud rates from 1.2 to 19.2 kbps, asynchronous, 8 data bits, no parity, and one stop bit.Terminal sessions provide access to screen menus for the following: Provisioning Testing Performance MonitoringUpon terminal connection, depress the space bar three times to access screens. Directions on the screensguide craft personnel through the various menus.Remote Provisioning and DiagnosticsThe TRDDB responds to or supports the following: ADTRAN Digital System 6 Message Protocol. TPI 108/109 and 105 portable test sets. Hekimian React 2001 Release 1.900. ANSI Standard T1.107-1995 “Digital Hierarchy Format Specifications Annex G”.TROUBLESHOOTING GUIDENo Power at the TROCU-R Ensure TRDDB is supplying necessary voltage to power the TROCU-R. Measure T/R voltage at theframe (Tip to Ground = -130 Vdc or less depending on voltmeter impedance, Tip to Ring = -125 to-130 Vdc, ring to ground = 0). The Total Reach DDS system is not polarity sensitive. If no voltage is measured at the TRDDB, replace the unit. Remove the TROCU-R from the housing. Measure T/R voltage at the T200 mounting. Tip to Ring =-125 to -130 Vdc. If voltage is not present at the TROCU-R, check continuity of cable pair. If voltage is measured at the TROCU-R, replace the unit.JOBAID61291004L2-22A0009D4 TRDDBCLEI: D4C4EEHB_ _D4 TOTAL REACH DDS (TRDDB)FRONT PANEL OPERATION & FEATURESStatus LEDsNO SX On No sealing current on local loop.✷ Flashing Short circuit on 2-wire loop.SYNC Green Loop synchronized. Red Loop not synchronized.CRC On Errors on 2-wire loop.QM DISC On Quality Monitor Disconnect occurred.REM On Software option set in effect.✷ Flashing Remote control link active. Off Hardware option set in effect.NO DSU On Customer CSU/DSU not detected/installed.LBK On DS0, OCU, or CSU loopback exists.✷ Flashing TRDDB in loopback towards customer.NOTE: All LEDs OFF indicates loss of power or other malfunction.Front Panel DIP Switch SW1Dip switch SW1 options should be made prior to installing the TRDDB circuit card.SW1-1 - Latching Loopback On Responds to DS0 latching loopback (LLBK) sequences.Translates OCU & CSU LLBK to TROCU-RSW1-2 - Quality Monitor On TRDDB monitors incoming 2-wire loop and 4-wirecustomer interface for errors. Excessive errors cause atrouble code to be sent to the network: ASC (4-wireerrors) or alternating MOS and ASC (2-wire errors)SW1-3 - 2.4 On Selects 2.4 kbps data rateSW1-4 - 4.8 On Selects 4.8 kbps data rateSW1-5 - 9.6 On Selects 9.6 kbps data rateSW1-6 - 19.2 On Selects 19.2 kbps data rateSW1-7 - 56 On Selects 56 kbps data rateSW1-8 - 64 On Selects 64 kbps data rateSW1-9 - SC On Enables secondary channelNOTE: At 64 kbps LLBK is automatically enabled. SW1-1 then controls LLBK protection:Off enables and On disables LLBK protection.Front Panel AP Pushbutton SW2Depressing the Alternate Provisioning pushbutton for five seconds will toggle between hard-ware and software option settings. The REM LED shows which set is in effect.Front Panel Bantam JacksLogic level Bantam jacks provide access to the transmit and receive sides of the data streamfor testing with a portable test set.DEPLOYMENT GUIDELINES All loops must be non-loaded. Maximum Loop Loss measured at a Nyquist of 13.3 kHz is 50 dB AML or 47 dB EML(135 Ω termination). Maximum Loop Loss measured at a Nyquist of 28 kHz is 65 dB AML or 62 dB EML(135 Ω termination). Bridged tap length should not exceed 12 kft. Background noise level should not exceed 34 dBrn. Impulse noise should not exceed -40 dBm (+50 dBrn).INSTALLATION & TURN UPInstallation assumes the TROCU-R is installed.1. Wire 2-wire loop to T/R pair, pins 24 and 51 of the D4 backplane. Connect the DS0 inputpair to the MA/MB pair, pins 46 and 48, and the DS0 output pair to the EA/EB pair, pins45 and 19.2. Select required/desired options on SW1.C A U T I O NC A U T I O N !SUBJECT TO ELECTROSTATIC DAMAGEOR DECREASE IN RELIABILITY.HANDLING PRECAUTIONS REQUIRED. For a complete Installation and Maintenance Practice: (877) 457-5007, Document #546. Please have your fax number available. DS04-wireDS04-wireDS04-wireDS04-wireDS0IXCT1DS0DP MJUTROCU-RTRDDBDSU/CSUGPC, D4, or SLC962-wireLoop50 kftTROCU-RTRDDBDSU/CSU2-wireLoop50 kftTROCU-RTRDDB DSU/CSU2-wireLoop50 kftTROCU-RTRDDB DSU/CSU2-wireLoop50 kftCustomer PremisesCO

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