Nortel DMS-100 Series Maintenance Manual page 469

Replacing an NTTR66 in an RLD
At your current location:
1 Proceed only if you were either directed to this card replacement procedure
from a step in a maintenance procedure, are using the procedure to check or
accept cards, or were directed to this procedure by your maintenance support
group.
2 Get a replacement card. Make sure the replacement card has the same
product equipment code (PEC), including suffix, as the card that is to be
removed.
3
Identify the EMI card to be replaced based on the Telephony subsystem
(TSS) diagram. The relationship between the EMI card and the affected line
cards is identified in the table following the figure. This information is also
printed on a label on the back of the front cover of the SRME cabinet and on
the inside of the TSS cover of the SRMO cabinet.
Star Remote System card replacement procedures
CAUTION
Service disruption: calls may be dropped!
Perform this card replacment activity only during a period of
low traffic. All calls being handled by the lines connected to
the EMI filter card being replaced will be dropped.
DMS-100 Family NA100 Star Remote System XPM15 and up
12-121
NTTR66
in an RLD
(continued)