Nortel Meridian 1 Hardware Replacement Manual page 164

Page 164 of 250
553-3001-520 Standard 17.00 January 2002
Replacing equipment
Removing equipment
1 Turn off power to the module:
— With AC power, set the associated circuit breaker on the module
power supply (MPDU) to OFF (down).
Note: If there are two circuit breakers on the MPDU, the top one is
associated with the module power supply, the bottom one with the
ringing generator.
— With DC power, set the switch on the module power supply to OFF
(down).
2 Software disable the controller card (and all cards connected to the
controller):
LD 32
DSXP x
3 Unhook the locking devices on the card; pull it out of the card cage.
Installing equipment
1 Insert the replacement card into the vacated slot and hook the locking
devices.
2 Turn on power to the module:
— With AC power, set the associated circuit breaker on the MPDU to
ON (up).
— With DC power, set the switch on the module power supply to ON
(up).
3 Watch the controller card as it runs a series of self-tests:
— During the tests, the maintenance display on the card shows the
code for each test running (see "HEX" in the System Messages
Guide (553-3001-411)). If the tests complete successfully, the
display begins normal operation. If the card continuously fails a
test, the code for that test is displayed.
— When IPE cards are installed, the red LED on the faceplate
remains lit for 2 to 5 seconds as a self-test runs. If the self-test
completes successfully, the LED flashes three times and remains
lit until the card is configured and enabled in software, then the
LED goes out. If the LED does not follow the pattern described or
operates in any other manner (such as continually flashing or
remaining weakly lit), replace the card.
"x" is the controller card number