Avaya 03-300430 User Manual

Replacing a DS1 Converter Circuit Pack with 
the Same Type DS1 Converter Circuit Pack—Duplicated
PNC

!

WARNING:

On a system with duplicated PNC, synchronization may be provided over a 
combination of active and standby components. This condition is indicated by an 
OFF-BOARD WRN alarm against TDM-CLK with Error Type #2305. Repairs to 
standby PNC in this state may disrupt service. Otherwise, if the active PNC is 
functional, replacement of a standby component will not disrupt service.

!

WARNING:

Do not power down a Switch Node carrier to replace a circuit pack.

Enter status pnc.

Verify that the component to be replaced is on the 

standby PNC.

Enter busyout pnc.

Enter busyout board location.

location represents the cabinet-carrier-slot address 

of the circuit pack to be replaced.

Replace the circuit pack with the same 

DS1 converter board type.

Enter release board location.

CAUTION: Do not busyout any Expansion 

Enter test alarms long clear for 

category exp-intf.

Wait 5 minutes for SNI-BD, SNI-PEER, 

FIBER-LK, and DS1C-BD alarms to 

clear, or enter clear 

firmware-counters <a-pnc or 

b-pnc>.

Use the letter designation of the pnc that holds the 

replaced component (the standby pnc).

Enter status pnc.

If either PNC’s state of health is not “functional”, 

consult the PNC-DUP section of the Maintenance 

Manual.

Enter release pnc.