Nortel Meridian 1 Replacement Manual page 165

— 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 X11 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.
4 Software enable and test the controller card (and all cards connected to
the controller):
ENXP x
— If there is a problem, an NPR, NWS, or SDL system message may
be produced and the red LED lights on the controller card.
— If there is no problem, exit LD 32:
****
5 Tag defective equipment with a description of the problem and package
it for return to a repair center.
Replacing equipment
Hardware replacement
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