Chapter 39 Hardware procedures 245
Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2
Installing a cabinet door alarm cable for a Multiservice
Switch
Install a Nortel Networks Multiservice Switch cabinet alarm cable so that the
LEDs on the door can display the alarm status of a Multiservice Switch
7460
or Multiservice Switch
7480.
Prerequisites
• You need a door alarm cable with PEC NTEP8027, as shown in the figure
“Example of a door alarm cable” (page 246).
•Follow “Avoiding damage from static electricity” (page 208) to protect
the unit from damage by ESD or from transferring ESD to other
hardware.
Procedure steps
1 Connect the door alarm cable to the connector on the inside of the cabinet
door. See the figure “Door alarm connectors for a Multiservice
Switch 7480” (page 249).
The door connection is the same for the Multiservice Switch 7460.
2 Remove the grommet from the hole at the top of the cabinet frame, and
install it on the other end of the door alarm cable.
3 Slide the cable through the hole about 15 cm (6 in.), and re-install the
grommet on the frame.
4 Slide the cable the rest of the way through to the inside of the cabinet.
5 Route the cable around the top of the cabinet cross-member, and out into
the cable trough.
6 Route the cable down to the shelf assembly and connect it to the door
alarm connector on the back of the shelf assembly. See the figures
• “Multiservice Switch 7480 alarm connectors” (page 248)
CAUTION
Risk of equipment damage
Do not use the door alarm connectors for any type of
telephone equipment. Severe damage can result.
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