Avaya 03-300430 User Manual

This procedure is destructive.

1. Pull out the defective IPSI or Tone-Clock circuit pack. This will remove the clocks and cause 

the system to activate emergency measures. If this is an IPSI supported port network, use 
busyout ipserver-interface:

●

All calls to and from the PN will drop, and the PN will activate Emergency Transfer within 
about one minute. But the rest of the system should operate normally.

2. Insert a new IPSI or Tone-Clock circuit pack. The system will detect the return of the clocks 

and will automatically recover as follows:

●

The system will reset the PN (PN cold restart), and all of the PN’s red LEDs will come on 
and go off within 30 seconds.

3. If the red LEDs come on but do not go off within 30 seconds, pull the circuit pack out and 

reseat it. If the LEDs perform as expected this time, continue with step 6. Otherwise, there 
may be a problem with the TDM bus; possibly a bent pin in the IPSI or Tone-Clock circuit 
pack’s slot. Follow the directions in the TDM-BUS maintenance section.

4. If the red LEDs did light, as explained above, then go to Step 6. If the red LEDs do NOT 

light, as explained above, then go on to Step 5.

5. Restart the affected port network:

●

Restart the PN by resetting its Expansion Interface circuit pack using reset 
port-network P level 2, using the port network’s number of the affected PN. (Use 

the list cabinet C command to determine the port network’s number for a given 

cabinet and carrier.)

6. Test the new IPSI or Tone-Clock circuit pack to verify that it is functioning properly, using 

test tone-clock location long, and verify that the system is operational by placing 

several phone calls. Where possible, try calls into, out from, and within the affected port 
network.

Notes:

1. Use list cabinet C to determine the port network’s number of the cabinet and carrier 

containing the Tone-Clock circuit pack to be replaced. If both of a PN’s Tone-Clock circuit 
packs need to be replaced, first replace and test the one in standby mode by either:

●

Entering status port-network to display its status

●

Making sure its amber LED is off

 Make sure it is healthy and active before replacing the second one.