Maintenance for CSI systems
555-233-119
66
Issue 5 October 2002
3. Replace the circuit pack as per the following procedure.
NOTE:
If a new circuit pack does not correct the problem, install the original
circuit pack.
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 using the procedure in
‘‘Restoring Power’’
.
4. Verify that the circuit pack LED indications are correct.
5. Test the replaced control circuit pack by entering the system technician
commands after power has been restored.
Removing Power
When power is removed, the following features deactivate:
■
Attendant Trunk Group Control
■
Automatic Callback
■
Call Park
■
Make Busy for Direct Department Calling (DDC) and Uniform Call
Distribution (UCD)
The procedures for removing power vary depending on the system configuration.
Follow the appropriate procedure.
!
WARNING:
Before powering down a carrier that contains EMBEDDED AUDIX circuit
packs (TN566), first power down the AUDIX unit to avoid damaging the
AUDIX disk. Instructions for powering down this unit are in the
‘‘Power Down
AUDIX System’’
section below, on the circuit pack, and in EMBEDDED
AUDIX documentation.
Power Down AUDIX System
A yellow caution sticker on the system’s power unit notifies technicians to shut
down the EMBEDDED AUDIX System prior to powering down the system.
1. Long into the AUDIX System as craft.
2. Enter reset system shutdown. Press
Enter.
3. Press
Enter
again to start the shutdown process.