Nortel DMS-100 Series Replacement Procedures page 342

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1-310 XPM card replacement procedures (continued)

in an RSC-S (PCM-30) Model A RCO2

297-8021-547 Standard 14.02 May 2001

Make sure the replacement card has the same PEC and PEC sufﬁx, as

the card you removed. Make sure all replacement card DIP switch

settings match settings of the card you removed.

Note: If the NTAX74 circuit card has a DIP switch, set the DIP switch

S1 to the common peripheral module (CPM).

Possible loss of P-side nodes

When you install the replacement NTAX74, monitor the

LEDs on the faceplate of the NTAX74 for the following

indicators:1. The INSV and ESA LEDs come ON and

remain ON until loading starts.2. The ACT LED can come

ON and light for less than 1 s. If the ACT LED remains ON

for more than 1 s, remove the NTAX74 circuit card and

return to this step. If the NTAX74 circuit card remains with

both units that have an active processor, a condition of dual

activity occurs. This condition causes the loss of P-side

Open the locking levers on the replacement card.

Align the card with the slots in the shelf.

Carefully slide the card in the shelf.