ADTRAN 850 Installation And Operation Manual

Also see for Total Access 850: Job aid Installation and Maintenance Installation and Maintenance System manual Installation and Maintenance

Contents

ADTRAN 850 Installation And Operation Manual Manual pdf 3 page image

61200373L1-5B Issue 2, August 2001 3ConnectionsAll TA 850 BCU connections are made through thebackplane connector. With the exception of power andthe V.35 connector, all of the TA 850 rear panel connec-tors terminate on the BCU. These include Network T1,Clock source, Alarms, Fractional T1, and Management.Refer to the TA 850 System Installation and Mainte-nance Practice, part number 64200376L1- 5A, for addi-tional information on rear panel connections. Table 1describes the T1 pinout connections.Faceplate LEDThe faceplate Network LED labeled T1 Network pro-vides status information for the network T1 using a col-or coded message format. Refer to Table 2.4. TESTINGThe TA 850 BCU provides a variety of test options forboth the Network T1 and DS0 access modules. The face-plate of the BCU provides a bantam jack for local T1 testaccess. DS0 test access for the digital access modules(OCU DP, DS0 DP, U-BR1TE) is provided via bantamjacks on the faceplate of each unit.Faceplate Bantam JackThe faceplate bantam jack provides a means to monitorthe network T1 connected to the rear of the TA 850 chas-sis. The jacks accept standard 310-type bantam plugs.Figure 2 on page 3 displays where the bantam jacksmonitor the T1.Faceplate TEST connectorThe faceplate DB-9 female TEST connector provides thenecessary clock output required by standard DSO LogicTest equipment such as a TPI 108/109 test set. Specifi-cally, the TEST connector outputs 8 kHz and 64 kHzclock reference signal. Figure 3 on page 5 illustrates theDB-9 TEST connector.Table 1. Pinout Connectors for RJ-48 T1 InterfaceTable 2. LED IndicationFigure 2. Bantam Jack Monitoring PointsAccessModule Maximum Number of DS0s that canbe used per moduleFXS 4FXO 4*OCU-DP 1*DSO-DP 1*U-BRITE 1*E&M 1Nx56/64(special slot)24*Supported in TA 850 Q300.Pin Name Description1 R1 - RING1 Receive data fromNetwork DS12 T1 - TIP1 Receive data fromNetwork DS13 unused -4 R - RING Transmit data to NetworkDS15 T - TIP Transmit data to NetworkDS16, 7, 8 unused -LED Condition DescriptionNetworkT1OFF No power.RED Unit in Red Alarm (T1down or not connected.)YELLOW Receiving Yellow Alarm(far end unit in RedAlarm.)GREEN Normal Operation.FLASHINGGREENNetwork T1 in Test.Clock and DataRecoveryMON INTest JackT1RXPAIRLine FormatDecoder ToBackplaneReceiver CircuitryTransmitter CircuitryMON OUTTest JackLocalLoopbackPointT1TXPAIRFromBackplaneLineLoopbackPointPayload/CSULoopbackPointEqualizer Line FormatEncoderDJATT1R1TR