ADTRAN D4 U-BR1TE V Installation And Maintenance Manual

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ADTRAN D4 U-BR1TE V Installation And Maintenance Manual Manual pdf 10 page image

10 Section 61104020L4-5, Issue 3 61104020L4-5CIDSL/DDS DescriptionThe U-BR1TE V may be deployed in the adjacent tocustomer position to provide transport for DDS/FrameRelay services with an ADTRAN IDSL OCU-R. Thisallows pair savings over traditional DDS deploymenton local loops up to 18 kft of mixed gauge wire. TheIDSL OCU-R is used to terminate the U-interface atthe customer’s premises provided by the U-BR1TE Vand to convert the 2-wire ISDN signal to a 4-wireAMI DDS signal for presentation to the customer.Together, the U-BR1TE V and IDSL OCU-R allowtesting over the ISDN transport network to beperformed with traditional DDS methods. In thismode U-BR1TE Vs may be placed in tandem andfunction as DS0 DPs while the IDSL OCU-Rfunctions as an OCU. See Figure 7 for variousU-BR1TE V DDS arrangements.DDS TestingFor leased mode or DDS applications with theU-BR1TE V the D channel is typically disabled.Without the D channel, standard ISDN EOCloopbacks are unavailable to the ISDN transportsystem and testing may only be accomplished byusing the in-band DDS loopback commands. TheU-BR1TE V responds to latching loopback sequencesfor the DS0 DP. The U-BR1TE V allows the OCUloopback command to pass in-band downstream to theIDSL OCU-R.Upon receipt of a DS0 DP latching loopback sequencethe U-BR1TE V initiates a bilateral loopback for theB1 channel. This bilateral loopback allows testing ofthe 2B1Q local loop to the IDSL OCU-Rsimultaneously with network testing to the U-BR1TEV.Figure 7. U-BR1TE V IDSL/DDS Circuit Diagram4W DS0 DPorOCUT1 T1D4A B CD ED4/DCS COT/DCSRT4W DS0 DPorDCS4W DS0 DPorDCS2-WireLocalLoop2-WireLocalLoop2-WireLocalLoop4WDigital4WDigitalU-BR1TE1BSLC 96IDSL OCU-R14W DS0 DPorOCUT1 T1D4A B CD ED4 D4D44W DS0 DPorDCS IDSL OCU-RCustomerPremisesCustomerPremisesCustomerPremises4W DS0 DPorOCUT1 T1D4AB C D ECOT RTU-BR1TE1BU-BR1TE1B+D2WDigitalU-BR1TE1B+DU-BR1TE1BNon-ADTRAN U-BR1TE 1B+DIDSL OCU-R234W DS0 DPorDCSD4SW31 - LULT (RT)2 - TANDEMSW6SW31 - LULT (RT)2 - ADJSW6Equipment RequirementsD & 3 D: Must be 1104020L4 w/ power enabledB: Must be 1104020L4 w/ Power DisabledE: Requires local AC power122NOTE: Refer to Table 1 for DIP switch functiondescriptions.NormalPowerSW31 - LULT (RT)2 - ADJSW6Power