Replacing The Nt4N48 System Utility Card - Nortel 1000E Maintenance Manual

Replacing the NT4N48 System Utility card

This section describes how to replace the NT4N48 System Utility card.
With CS 1000E, the System Utility card minimum vintage is
NT4N48BA.
Procedure 1:
Replacing the NT4N48 System Utility card
1 Check the System Utility card maintenance display to verify that the Call
Server containing the CP PII card to be replaced is inactive.
a. If the Call Server containing the System Utility card is active, switch
Call Servers in LD 135:
LD 135
SCPU
2 In LD 135, split the Call Servers:
SPLIT
3 In LD 135, on the inactive Call Server, software-disable the System Utility
card:
DIS SUTL c 15 Disable the System Utility card, where:
4 Hardware-disable the System Utility card: set the faceplate switch to DIS.
5 Use a small-bladed screwdriver to remove the screws from the System
Utility card.
6 To remove the card, hold the card by the faceplate latches and gently pull
it out of the slot.
7 Before you install the new System Utility card, hardware-disable it: set the
faceplate switch to Dis.
8 Ensure the security device has been installed on the card.
Replacing equipment
IMPORTANT!
To load the program.
Switch Core (if necessary).
c = Call Server number (0 or 1)
Communication Server 1000E
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Maintenance