Replacing the NT4N48 System Utility card 12713 In LD 135, verify that the replaced CP PIV card can control callprocessing:SCPU To check replaced CP PIV.14 Switch Call Server back, if necessary.—End—Replacing the NT4N48 System Utility cardATTENTIONOn a CS 1000E, the System Utility card minimum vintage is NT4N48BA.Procedure 21Replacing the NT4N48 System Utility cardStep Action1 Check the System Utility card maintenance display to verify that theCall 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 To load the program.SCPU Switch Core (if necessary).2 In LD 135, split the Call Servers:SPLIT3 In LD 135, on the inactive Call Server, software-disable the SystemUtility card:DIS SUTL c 15 Disable the System Utility card, where:c = Call Server number (0 or 1)4 Hardware-disable the System Utility card: configure the faceplateswitch to DIS.5 Use a small-bladed screwdriver to remove the screws from theSystem Utility card.6 To remove the card, hold the card by the faceplate latches and gentlypull it out of the slot.Nortel Communication Server 1000Communication Server 1000E MaintenanceNN43041-700 01.02 StandardRelease 5.0 20 June 2007Copyright © 2007, Nortel Networks.