Replacing An Nt4K32 Ds1 Input Card - Nortel SONET AccessNode User Manual

Procedure 7-3

Replacing an NT4K32 DS1 input card

Use this procedure to replace a DS1 input 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 7-7
Action
Remove the ABM shelf cover as shown in Chapter 3, "Removing covers and
grilles."
CAUTION
Service interruption
There are up to 14 DS1s associated with a DS1 input
card. Removing the connector from a DS1 input card
results in a loss of up to 14 DS1s to the corresponding
DS1/VT mapper.
Disconnect the DS1 signal cable from the DS1 input card, as shown in
Figure 7-2.
Loosen the hold-down screw on the faceplate and remove the input card from
the shelf.
Insert a replacement DS1 input card, and tighten the hold-down screw on the
faceplate.
Re-connect the DS1 cable to the input card and fasten the connector
hold-down screw.
Replace the shelf cover.
—continued—