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Procedure 7-1
Replacing an NT4K30 DS3 I/O card
Use this procedure to replace an NT4K30 DS3 I/O card in an access bandwidth
manager (ABM) shelf.
Action
Step
1
2
3
4
5
6
AccessNode Modular Business Package VTBM Ring User Guide P0904244 Issue 1.0
Replacing modules in a common-equipment shelf 7-3
Action
CAUTION
Possible loss of service
Replacing the DS3 I/O card will cause a service
failure to the DS3 input and output channel
associated with it.
Remove the ABM shelf cover as shown in Chapter 3, "Removing covers and
grilles."
Disconnect the DS3 cables from the DS3 I/O card connectors.
Note: If cabling is congested, use a BNC removal/installation tool.
Loosen the hold-down screw on the faceplate and remove the DS3 I/O card
from the shelf.
Install the new DS3 I/O card and tighten the hold-down screw.
Re-connect the DS3 cables to the I/O card.
Note: If cabling is congested, use a BNC removal/installation tool.
Replace the shelf cover.
—end—
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