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Installing ISDN BRI hardware
Figure 3: NT4N41 Core/Network module (Large System)
Remove the module cover for card installation
To remove the covers from the modules with unused card slots, follow the procedure below.
Refer to
Figure 4: Module cover locking latches
1. Use a flat-blade screwdriver to unlock the left latch on the front of the cover by
2. Use a flat-blade screwdriver to unlock the right latch on the front of the cover by
3. While holding the cover so it does not fall off, slide the latches toward the center of
4. Pull the cover toward you and lift it away from the module.
5. Place the cover in a safe place away from the working area to avoid damaging it.
6. Repeat steps 1 through 5 for each cover requiring removal.
20
ISDN Basic Rate Interface Installation and Commissioning
turning the screw 1/4 turn clockwise.
turning the screw 1/4 turn counterclockwise.
the cover.
on page 21.
March 2011
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