Replacing The Ntak10 Or Ntrb21 Circuit Cards (Dti Applications) - Nortel 1000E Maintenance Manual

Replacing the NTAK10 or NTRB21 circuit cards (DTI
applications)
To replace the NTAK10 or NTRB21 when configured as a Digital Trunk
Interface (DTI), follow the steps in Procedure 17.
Procedure 17
Replacing the NTAK10 or NTRB21 when configured as a DTI
1 Disable the Clock Controller by using the command:
LD 60 DIS CC 0
2 Disable the DTI pack by using the command:
LD 60 DISL X
3 Hold the circuit card by the lock latches, unlock the latches, and slide the
circuit card out of the Media Gateway. If required, remove any
daughterboards attached to the card.
4 On the replacement DTI circuit card, set any switches and install any
daughterboards as required. Hold the replacement DTI circuit card by the
lock latches and slide it into its assigned slot until it connects with the
backplane.
5 Enable the Clock Controller (if on the DTI) and the DTI in their
corresponding overlays:
LD 60 ENL CC 0
LD 60 ENLL X
6 Check the tracking of the Clock Controller with the following overlay:
LD 60 SSCK 0
If it is not tracking or is not locked, use the following commands to start
tracking.
LD 60 TRCK PCK/SCLK
Replacing equipment
End of Procedure
Communication Server 1000E
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Maintenance