ADTRAN DSU/CSU Installation And Maintenance Manual

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ADTRAN DSU/CSU Installation And Maintenance Manual Manual pdf 1 page image

161291006L2-5B Section 61291006L2, Issue 21. GENERALThis practice provides installation and maintenanceprocedures for the ADTRAN D4 Total Reach OfficeChannel Unit Dataport (TROCU DP) PreferredOption. The unit is illustrated in Figure 1.Document Revision HistoryIssue 2 of this document revises the DeploymentGuidelines subsection.DescriptionADTRAN D4 TROCU DP Preferred Option is afunctional replacement for the D4 OCU DP,delivering data at rates up to 64 kbps on a singlecopper pair. Used in combination with the TotalReach Digital Data Service Remote termination unit(TRDDS-R), the TROCU DP can accommodateextended loop lengths eliminating the need for DDSrepeaters. The TROCU DP span powers the remoteTRDDS-R located at the customer premise. TheTRDDS-R converts the two-wire signal to theModel TROCU DP Preferred OptionTotal Reach® All-Rate DDS DataportInstallation and MaintenanceSection 61291006L2-5Issue 2, June 1999CLEI Code #D4D3MPY_ _ _Trademarks: Any brand names and product names included in this document aretrademarks, registered trademarks, or trade names of their respective holders.traditional four-wire Alternate Mark Inversion (AMI)signal for presentation to the customer.The TROCU DP occupies a single channel position inthe WECO ® compatible D4 channel bank or theAT&T® SLC-96 Mode I and III terminal. It providesthe interface between a DS0 timeslot of the T-carrierdata stream, and the two-wire metallic loop extendingto the customer premises.The TROCU DP may interoperate over the carriersystem with another TROCU DP, an OCU DP, a DS0DP, a 1/0 DCS, or the central office switch. The unitcan be located in an end office, hub office,intermediate office, or remote terminal digital carriersystem (see Figure 2). The two-wire loop isconnected using the tip (pin 24) and ring (pin 51) onthe D4 backplane.Figure 1. TROCU DP Preferred OptionT-CarrierD4 or SLC-962-Wire Loop4-Wire CustomerInterfaceDSU/CSUTRDDS-RTROCUDP T/R PairCustomer PremisesFigure 2. Total Reach DDS Circuit DiagramSYNCNEARFARREMQMNOLBKIDLERxTxSC645619.29.64.82.4SW56TROCU DP1291006L2SD4 2-WIRELOSSCRCCRCDISCDSU(OUT)(IN)APLOGICSW1CONTENTS1. GENERAL ..................................................................... 12. OPTIONS ...................................................................... 23. INSTALLATION ........................................................... 34. TESTING ....................................................................... 35. REMOTE PROVISIONING ANDDIAGNOSTICS ............................................................. 46. DEPLOYMENT GUIDELINES .................................... 57. WARRANTY AND CUSTOMER SERVICE ............... 6FIGURESFigure 1. TROCU DP Preferred Option ............................. 1Figure 2. Total Reach DDS Circuit Diagram ..................... 1Figure 3. Option Switch ..................................................... 2Figure 4. Rate Selection ..................................................... 2Figure 5. OCU Loopback at the TROCU DP ..................... 4Figure 6. TROCU DP Bidirectional LoopbackPass-Thru Mode ................................................. 4Figure 7. TROCU DP Bidirectional LoopbackNormal Mode ..................................................... 4TABLESTable 1. Preprovisioning ..................................................... 3Table 2. Cable Type Loss Data @ 13.3 kHz ....................... 3Table 3. LED Indicators ..................................................... 5Table 4. TRDDS Insertion Loss Measurements ................. 5