Nortel Meridian 1 Replacement Manual page 167

• NT8D14 Universal Trunk Card
• NT8D15 E&M Trunk Card
• NT8D16 Digitone Receiver (DTR) Card
See the X11 Administration (553-3001-311) for a description of all
maintenance commands, and the X11 System Messages Guide
(553-3001-411) for interpreting system messages.
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.
Removing equipment
1 Software disable the card:
LD 32
DISI l s c
You will see "NPR011" on the system terminal when the card is
disabled. Busy channels will not be disabled until the call is
disconnected.
2 Unhook the locking devices on the card; pull it out of the card cage.
Installing equipment
1 Set jumpers on the following replacement cards the same as on the card
you removed:
NT8D14 Universal Trunk Card
NT8D15 E&M Trunk Card
To check settings, see Circuit Card: Installation and Testing
(553-3001-211).
2 Insert the replacement card into the vacated slot and hook the locking
devices.
Replacing equipment
WARNING
"l s c" are loop, shelf, and card numbers
Page 167 of 362
Hardware replacement