Avaya 03-300430 User Manual

2. Test the active Tone-Clock circuit pack in the master port network using test 

tone-clock location long.
Check the Error Log for TDM-CLK errors, and verify that TDM bus Clock Circuit Status 
Inquiry test (#148) passes.

If Test #148 fails with Error Code 2–32, see 

on page 2252 to 

resolve the problem. If not, continue with the following.

3. For duplicated Tone-Clock circuit packs in the master port network, enter set 

tone-clock location to switch the Tone-Clocks.
For unduplicated Tone-Clock circuit packs in the master port network of a Stratum-4 (not 
Stratum-3) system, replace the primary and secondary (if assigned) DS1 Interface circuit 
packs.

4. Investigate any other SYNC or STRAT-3 errors.

h. This error indicates that the Expansion Interface circuit packs are experiencing timing slips. 

This error increases the bit error rates for data transmission between port networks. The 
Expansion Interface circuit packs with timing slips have EXP-INTF error 2305.

1. Check the LEDs on the active Tone-Clock circuit packs in the system and verify that the 

system is properly synchronized.

2. Verify that all the TDM/LAN Bus cables on the backplane are marked WP-91716. Also for 

a Multi-Carrier Cabinet (MCC), check that the bus terminator type is a ZAHF4 TDM/LAN.

For a Single Carrier Cabinet verify that the bus terminator type is a AHF110 TDM/LAN.

3. Check for timing loops, and resolve any loops that exist.

4. Check the Error Log for any active as well as resolved Expansion Interface circuit pack 

on page 1176 to resolve 

any errors found.

5. Duplicated Tone-Clock circuit packs in the slave port networks:

●

Interchange Tone-Clock circuit packs in the slave port networks where EXP-INTF error 
2305 also occurs using set tone-clock location. The error count for this error 

should start to decrement once the problem is solved. If the count does not decrease 
in 15 minutes, the problem still exists.

●

If the problem still exists, switch the Tone-Clock in the slave port network back to the 
previous configuration, then perform a PNC interchange using reset pnc 
interchange.

●

If the problem still exists, switch the PNC back to the previous configuration using 
reset pnc interchange. Switch the Tone-Clock circuit packs in the master port 

network using set tone-clock location.

●

If the problem still exists, switch the Tone-Clock circuit packs in the master port 
network back to the previous configuration using set tone-clock location.