Table of Contents
Advertisement
Caution:
As a general safety precaution, be sure to provide DC power through either a fuse or DC
circuit breaker with a maximum rating of 3 amps.
Note:
The connection between the earthed conductor of the DC power circuit and the earthing
conductor is provided at the source.
To connect DC power:
1. Make sure the DC power source is turned off.
2. For single source power, remove 1/2 inch of insulation from both ends of two 18
3. For redundant (dual source) power, each supply must have its own input. Use two
4. Insert the stripped ends of the wires into the input terminals.
5. Connect the –48 V lead to the –48 V terminal.
6. Connect the +48 V return lead to the appropriate +48 RTN terminal.
7. Clamp each inserted wire:
Avaya Secure Router 3120 Installation Guide
AWG copper wires. Refer to
Wires
on page 34.
wires for each input.
Caution:
To avoid equipment damage, make sure that the +48V lead is connected to the
appropriate RTN connector on the terminal block.
a. Insert a small screwdriver in the port above each inserted wire.
b. Tighten the screw to within the torque guidelines printed on the back
panel.
Warning:
Make sure there are no exposed wires.
Figure 8: Preparing Alarm, DC Power, and Ground
Secure Router 3120 Power
December 2010
31
Advertisement
Table of Contents
