ADTRAN DSU/CSU manual

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Table of contents for the manual

  • Page 1

    1 61291006L2-5B Section 61291006L2, Issue 2 1. GENERAL This practice provides installation and maintenance procedures for the ADTRAN D4 Total Reach Office Channel Unit Dataport (TROCU DP) Preferred Option. The unit is illustrated in Figure 1 . Document Revision History Issue 2 of this document revises the Deployment Guidelines subsection. Descripti[...]

  • Page 2

    2 61291006L2-5B Section 61291006L2, Issue 2 2. OPTIONS Select the appropriate OPTIONS and RATE using SW1 and faceplate switches as illustrated in Figure 3 and Figure 4 . CAUTION Select only one option rate. Rate is selected on faceplate switch SW2 by pushing one or two switches to the right toward the inscribed rates. If either SW56 or 64 is select[...]

  • Page 3

    3 61291006L2-5B Section 61291006L2, Issue 2 When inserted into a powered up backplane the TROCU DP and TRDDS-R will synchronize within 30 to 90 seconds. When synchronized, the SYNC LOSS indicator LED will turn Off. If synchronization cannot be achieved, check the T/R pair for an open circuit or short circuit condition, or load coils (see LED Indica[...]

  • Page 4

    4 61291006L2-5B Section 61291006L2, Issue 2 As an enhancement to automated testing capability, TRDDS eliminates false error indication when invoking NIE, CSU, or DSU loopbacks immediately following release of OCU loopback. TROCU DP Bidirectional Loopback Support The TROCU DP will execute a bidirectional loopback when performing an OCU loopback at t[...]

  • Page 5

    5 61291006L2-5B Section 61291006L2, Issue 2 and manual switch settings by pressing the momentary Alternate Provisioning (AP) switch located on the front panel. If the channel unit is removed from the system, the unit retains previous provisioning information in nonvolatile Random Access Memory (RAM). The REM indicator remains ON when the channel un[...]

  • Page 6

    6 61291006L2-5B Section 61291006L2, Issue 2 7. WARRANTY AND CUSTOMER SERVICE ADTRAN will replace or repair this product within 10 years from the date of shipment if it does not meet its published specifications or fails while in service (see: ADTRAN Carrier Networks Equipment Warranty, Repair, and Return Policy and Procedure, document: 60000087-10A[...]