Red Led Lit On Remote Carrier Interface Card - Nortel Meridian 1 Manual

Page 124 of 190 Clearing peripheral equipment faults
Symptom:

Red LED lit on Remote Carrier Interface card

T
Equipment cards on the same shelf may be lit. Look up all system messages
and maintenance display codes in the X11 system messages guide and follow
the instructions given. If the fault does not clear, use this procedure.
Manual continuity tests can be used to isolate IPE faults. See "LD45" in the
X11 input/output guide for details on performing the tests.
Replace equipment as described in Meridian 1 hardware replacement
(553-3001-520). You may need to replace one of the following:
— Remote Carrier Interface card: NT7R52
— IPE card
— IPE card cage: NT8D3703
Possible cause
Defective Remote
Carrier Interface
card
553-3001-510 Standard 11.00 June 1999
he red LED is lit on only one controller card. Red LEDs on Peripheral (PE)
Note: Continually observe and look up system messages as you perform
this procedure.
Action
Perform the remote carrier interface card self-test by removing and
reinstalling the card.
Observe the self-test:
— The maintenance display on the card shows the code for each test
running (see "HEX" in the X11 input/output guide ).
— If the tests complete successfully, the display continuously flashes.
— If the card continually fails a test, the code for that test is steadily
displayed.
If the test fails, replace the card.
If the test passes but the card is still disabled, enable the card:
ENLL sl "sl" represents the card number.
If the test fails, go to the next possible cause.
(continued)