Nortel Meridian 1 Hardware Replacement Manual page 79

Switch call processing from Core 0 to Core 1
Perform the next 4 steps in succession. Call processing will be switched
from Core 0 to Core 1.
1 In Core 0, set the DIS/ENB faceplate switch on the IOP or IOP/CMDU
card to DIS.
2 In Core 0, disable the NT6D65 CNI cards by setting the ENB/DIS
faceplate switches to DIS.
3 In Core 1, enable the NT6D65 CNI cards by setting the ENB/DIS
faceplate to ENB.
4 In Core 1, press the MAN INT button.
After the system initialization has finished (INI messages are no longer
displayed on the system terminal), check for dial tone on a telephone set.
5 Following a successful dial tone test, perform the following basic sanity
tests:
a.
b.
Upgrading Core 0
1 Move the terminal cable to the J25 port on the I/O panel of the other
Core or Core/Network Module, and continue with the following steps
for the replacement of the second IOP/CMDU card.
2 In systems equipped with an NT6D63 IOP and NT6D64 CMDU,
perform the following two steps to remove these cards:
To remove the IOP:
a.
CAUTION
Service Interruption
Perform the next steps carefully. This is the point at
which your service is interrupted. Calls in progress
will be interrupted, especially if Peripheral Software
Download takes place.
Make sure calls can be placed.
Check for error messages, line noise, chatter, or other problems.
Track sources and resolve problems as necessary.
Set the ENB/DIS switch to DIS on the IOP being upgraded.
Replacing equipment
Hardware Replacement
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