Qpc841 Serial Data Interface Card - Nortel Meridian 1 Replacement Manual

QPC841 Serial Data Interface Card

Use this procedure to replace a serial data interface (SDI) 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.
If the system terminal is assigned to the SDI being replaced, assign it
to another port before this SDI is disabled.
Removing equipment
1 Software disable each port on the SDI:
LD 37
DIS TTY x
2 Set the ENB/DIS switch to DIS.
To avoid interrupting service, set ENB/DIS switches to DIS before
disconnecting or connecting cables.
3 Tag and disconnect cables to the card you are removing.
4 Unhook the locking devices on the card; pull it out of the card cage.
Replacing equipment
WARNING
CAUTION
"x" is the number of the interface device attached to
a port
CAUTION
Page 271 of 362
Hardware replacement