Nortel DMS-100 Series Maintenance Manual page 361

3 Open the locking levers on the defective circuit card. The top locking lever
opens up and the bottom locking lever opens down.
Gently pull the circuit card toward you until the circuit card clears the shelf.
4 Place the circuit card you have removed in an electrostatic discharge (ESD)
protective container.
If the card
is NTMX77
is other than listed here
5 Return to the NTMX77 circuit card replacement procedures for switch setting
information.
6
Make sure that the replacement circuit card has the same product engineering
code (PEC), including suffix, as the circuit card removed.
7 Make sure that all the DIP switch settings are the same as those on the circuit
card removed.
Removing and replacing a card
DMS-100 Family SMS Maintenance Manual XPM10 and up
Card replacement procedures 7-155
Do
step 5
step 6
(continued)