Nt8D41 Dual Or Quad Port Serial Data Interface Card - Nortel Meridian 1 Replacement Manual

Page 178 of 362

NT8D41 Dual or Quad Port Serial Data Interface card

553-3001-520 Standard 16.00 April 2000
Replacing equipment
The serial data interface (SDI) paddle board attaches to the rear of the
backplane in an NT8D11 CE/PE or NT6D39 CPU/Network Module. Use this
procedure to replace an SDI paddle board.
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 paddle board:
LD 37
DIS TTY x
2 Remove the rear cover on the module.
3 Remove the I/O safety panel by turning the screws on each side. Set the
cover aside.
4 Set the ENB/DIS switch to the disable position (down) on the paddle
board.
To avoid interrupting service, set ENB/DIS switches to DIS before
disconnecting or connecting cables.
WARNING
CAUTION
"x" is the number of the interface device attached to
the port
CAUTION