Mike's PBX Cookbook

NT6D65 and NTRB34
Core to Network Interface Cards

This procedure describes how to replace the Core to Network Interface (CNI) or Core to Network Interface 3 (CNI-3) card.

See Software Input Output Administration (NN43001-611) for a description of all maintenance commands, and Software Input Output Reference - System Messages (NN43001-712) for interpreting system messages.

Before replacing a CNI or CNI-3 card, test it in an unused CNI slot (in case, for example, there is a bent pin on the backplane). If the card works correctly in the new slot, leave it there.

Testing the card in an unused slot

1. The Core associated with the CNI card must be inactive. If it is necessary to switch Cores:

LD 135
SCPU

Set the NORM/MAINT switch to MAINT on the active CP card.

2. Software-disable the CNI card:

LD 135
DIS CNI c s c = CPU (0 or 1)
s = card slot (8-12)
****

3. Software-configure the new slot:

LD 17
EXT x 3PE "x" is the number (0-4) of the associated
3PE card(s)
CNI X s p Delete the group(s) associated slot
CNI s p g Add group(s) to new slot
****

LD 43
EDD Datadump the new configuration
****

4. Insert the CNI card in the new slot. Move the cables to the shrouds on the backplane to the connectors for the new slot.
5. Enable the CNI card and switch the CP cards: Set the NORM/MAINT switch to NORM on the active CP card.

LD 135
ENL CNI c s
SCPU
****

Replacing equipment

Removing a CNI card:

1. The Core associated with the CNI card must be inactive:
If it is necessary to switch Cores:

LD 135
SCPU

Set the NORM/MAINT switch to MAINT on the active CP card.
2. Set the ENB/DIS switch to DIS on the CNI card being replaced.
3. Unhook the locking devices on the card and pull the card out of the card cage.

Installing a replacement CNI card:

1. Set the ENB/DIS switch to DIS on the replacement card.
2. Insert the replacement card into the vacated slot and hook the locking devices.
3. Set the ENB/DIS switch to ENB on the replacement card.
4. Set the NORM/MAINT switch to NORM on the active CP card.
5. Software-enable and test the CNI card and configured ports on the card:

LD 135
ENL CNI c s c = CPU (0 or 1)
s = card slot (8-12)
TEST CNI c s
SCPU
****
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