Nortel Meridian 1 Hardware Replacement Manual page 141

See Administration (553-3001-311) for a description of all maintenance
commands, and System Messages Guide (553-3001-411) for interpreting
system messages.
DANGER
Module covers are not hinged; do not let go of the
cover. Lift the cover away from the module and set it
out of your work area.
CAUTION
Service Interruption
Service is interrupted when a loop is disabled.
Removing equipment
1 Software disable the Quad DTMF Receiver by entering
LD 32
DISS l s
("l s" represents loop and shelf number)
2 Remove the backplane access plate at the rear of the UEM by
removing the screws on each side. Set the plate aside.
3 Unhook the locking devices on the card; pull it out of the card cage.
Installing equipment
1 Check that the plug P2 0n the replacement card is oriented in the same
way as the card being replaced.
2 Insert the replacement card into the vacated slot and hook the locking
devices.
3 Position the backplane access plate. Replace the screws.
4 Software enable each loop on the card by entering
ENLS l s
5 End the session in LD 32 by entering
****
Replacing equipment
Hardware Replacement
Page 141 of 250