Avaya Definity SI, Maintenance Manual, Page: 107 / 2968

Handling Control Circuit Packs
Issue 4 May 2002 5-3 555-233-123
To install a new circuit pack or return the original one to service:
1. Carefully insert the circuit pack and push it all the way into its mounting
slot.
2. Lift the locking lever until the latch pin engages.
3. Restore power to the PPN. See ‘‘Restoring Power’’ .
4. Verify that the circuit pack LED indications are correct.
5. Test the replaced control circuit pack by issuing the system technician
commands after power has been restored.
Network Control Circuit Pack
!
WARNING:
When a TN777B Network Control circuit pack is reseated or replaced, the
correct date and time setting must be manually entered and verified.
The TN777B Network Control Pack holds a translation card. Before this circuit
pack is handled, remove the translation card.
1. Check that the "card in use" LED is not lighted. Otherwise, removing the
memory card may damage the data recorded on it.
2. Carefully pull the translation card from the card slot.
To insert the card into the slot:
1. Take the translation card and hold it in front of you so that the card’s label is
facing to your left.
2. With the card in this position, insert the shorter edge of the card into the
mounting slot. Then, gently push the card forward until you feel some
resistance at the opposite edge of the card. Once you feel this resistance,
the card is inserted. About 3/4 of an inch of a fully inserted card should
appear outside of the card slot.
!
WARNING:
Remember, assuming you are directly facing the circuit pack, the card
label should be facing to your left. If this is not the case, remove the
card and start again.
3. Use test card-mem (system technician command) to test the card.