Replacing msdl cards, Procedure 20 – Nortel Networks 1000 User Manual

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NT6D80 MSDL card

card does not enable, note the message output to the TTY and
follow the recommended action.

--End--

Replacing MSDL cards

After completing MSDL troubleshooting you may determine that one or
more MSDL cards are defective. Remove the defective cards and replace
them with new ones.

Procedure 20
Replacing an MSDL card

Step

Action

An MSDL card can be removed from and inserted into a system module without
turning off the power to the module. Follow these steps:

At the > prompt, type

LD 37

(you can also use LD 42, LD 48, or

LD 96) and press Enter.

Type

DIS MSDL x ALL

and press Enter to disable the MSDL and

any active operations running on one or more of its ports. The
MSDL card is now disabled.

Disconnect the cables from the MSDL faceplate connectors.

Unlatch the card-locking devices, and remove the card from the
module.

Set the switches on the replacement card to match those on the
defective card.

Insert the replacement card into the same card slot.

Observe the red LED on the front panel during self-test. If it
flashes three times and stays on, it has passed the test. Go to
step 8.

If it does not flash three times and then stay on, it has failed the
test. Pull the MSDL partially out of the module and reinsert it
firmly into the module. If the problem persists, troubleshoot or
replace the MSDL.

Connect the cables to the MSDL faceplate connectors.

At the . prompt in the LD 37 program, type

ENL MSDL x ALL

and

press Enter to enable the MSDL and its operations. If the red
LED on the MSDL turns off, the MSDL is functioning correctly.
Since self-tests were not invoked, no result message appears.

Nortel Communication Server 1000

Circuit Card Reference

NN43001-311

02.06

Standard

27 August 2008