External Alarms; Preparing Alarm, Dc Power, And Ground Wires; Secure Router 3120 Alarm Connections - Nortel Secure Router 3120 Installation Manual

External Alarms

This section describes how to connect external alarm devices to a Secure
Router 3120. The alarm contacts provide a normally closed relay contact.
In the event of a "Summary" alarm, the alarm contacts open.
To attach external alarm equipment:
Step
1
2
Copyright © 2005-2007, Nortel Networks
.
Secure Router 3120 power is now controlled by the external AC
source(s).
CAUTION
ESD
Before connecting cables or performing maintenance on a Secure
Router 3120, always wear an ESD-preventative wrist strap.
Connect the banana plug to the ESD ground connector on the
Secure Router 3120 chassis. Make sure that the wrist strap
makes contact with your skin.
Action
Remove 1/2 inch of insulation from both ends of two wires (18 AWG
copper wire) as shown in the following figure.

Preparing Alarm, DC Power, and Ground Wires

Insert the full lengths of the stripped-wire ends into the terminal block
located on the Secure Router 3120 back panel.

Secure Router 3120 Alarm Connections

Secure Router 3120
Installation Guide
NN47260-300 02.01 Standard
9.2 10 January 2007
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External Alarms 31
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