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DEFINITY Made Easy Tools
Issue 3, December 2001



Install and Administer Trunks

Installing TN1654s in a Switch Node Carrier

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You can install up to 2 TN1654 circuit packs in a Switch Node Carrier.

  1. Install the TN1654 circuit pack in either slot 1 or 21 of the Switch Node Carrier close to a TN573B SNI circuit pack.


Caution! Install the TN1654 circuit pack in either slot 1 or slot 21. Installing it in any other slots can damage the circuit pack and the system. Do not do it.

  1. On the backplane, connect a 14-inch (35.56 cm) Y cable from the TN1654 circuit pack to the TN573B circuit pack. See DS1 Converter Connections -- Part 1.


Caution! The Y cable used with the TN1654 circuit pack is different than the Y cable used with the TN574 circuit pack. These cables are NOT interchangeable.

  1. Connect an H600-348 Quad cable to the other side of the Y cable.

  2. Skip to Connecting Through a Channel Service Unit.

DS1 Converter Connections -- Part 1

Figure Notes:
      1. Port cabinet

      2. Backplane connector for TN570C EI

      3. Backplane connector for TN1654 DS1 Converter

      4. 50-pair female connector to EI connector

      5. 14-in. (35.6 cm) Y cable

      6. 50-pin male/50-pin female double-headed connector

      7. H600-348 Quad Cable (with 50-pin male connector), which connects the Y cable to the 4 CSUs.

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