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78 IPE card replacement procedures
NT8D22
in an IPE module
6
7
8
9
10
11
12
13
14
555-4031-547 Standard 12.02 July 2002
(continued)
CAUTION
Removal of slave XSM
If a slave XSM card is removed, the master
XSM considers that slave and all slaves with a
higher address as disabled. For example, if
the slave designated as XSM2 is disabled, the
master also reports Slaves 3 and above as
disabled.
Loosen the two screws on the NT8D22 XSM card, and pull the
card out of the slot.
Ensure that the replacement card has the same PEC, including
suffix, as the card you just removed.
Set the option switch settings on the card to match those of the
card you are replacing.
Insert the replacement card into the vacated slot, and tighten the
two screws on the front of the card.
Ensure that the LED in the top cap flashes three times. (The
XSM runs internal power-up diagnostics.)
If LED in the top cap
flashes three times
does not flash
Connect cables to the replacement card.
Replace the grill on the rear of the pedestal base.
Send any faulty cards for repair according to local procedure.
Record the following items in office records:
•
date the card was replaced
•
serial number of the card
•
symptoms that prompted replacement of the card
Go to Step 16.
Do
Step 11
Step 15
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