Nortel Meridian 1 Hardware Replacement Manual page 176

Page 176 of 250
553-3001-520 Standard 17.00 January 2002
Replacing equipment
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.
CAUTION
Service Interruption
To avoid interrupting service, set ENB/DIS switches
to DIS before disconnecting or connecting cables.
5 Tag and disconnect cables to the paddle board you are removing
(connector J1 for port 1, connector J2 for port 2).
6 Pull the paddle board out of the connector on the backplane.
Installing equipment
1 Set the ENB/DIS switch to the disable position (down) on the
replacement paddle board.
2 Set option switches on the replacement paddle board the same as on
the board you removed. If there is a vintage change, be sure to check
Circuit Card: Installation and Testing (553-3001-211) for any
differences.
3 Plug the replacement paddle board into the vacated connector on the
backplane.
4 Connect cables to the replacement paddle board.
5 Set the ENB/DIS switch to the enable position (up) on the replacement
paddle board.
6 Replace the I/O safety panel. Replace the rear cover on the module.
"x" is the number of the interface device attached to
the port