Installing A T320 Dc Power Supply - Juniper Core Router T Series Hardware Manual

T320 Core Router Hardware Guide

Installing a T320 DC Power Supply

252
T320 Power System Electrical Specifications on page 96
Site Electrical Wiring Guidelines for Juniper Networks Devices on page 361
CAUTION: Each power supply must be connected to a dedicated DC power
source.
To install a power supply (see
Make sure that the voltage across the DC power source cable leads is 0 V and that
1.
there is no chance that the cables might become active during installation.
CAUTION: You must ensure that power connections maintain the proper
polarity. The power source cables might be labeled
their polarity. There is no standard color coding for DC power cables. The
color coding used by the external DC power source at your site determines
the color coding for the leads on the power cables that attach to the
terminal studs on each power supply.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
2.
the strap to one of the ESD points on the chassis. For more information about ESD,
see "Preventing Electrostatic Discharge Damage to a T320 Router" on page
Switch the circuit breaker on the power supply faceplate to the off position (
3.
Using both hands, slide the power supply into the chassis until you feel resistance.
4.
Twist the ejector handles at the upper corners of the power supply faceplate clockwise
5.
until they stop.
Tighten the captive screws at the lower corners of the power supply faceplate to
6.
secure the power supply in the chassis.
Remove the clear plastic cover protecting the terminal studs on the faceplate.
7.
Remove the nuts and washers from the terminal studs.
8.
Attach the lugs on the DC source power cables to the terminal studs.
9.
Attach the positive (+) DC source power cable lugs to the
a.
terminals.
Figure 112 on page 254):
Copyright © 2018, Juniper Networks, Inc.
and to indicate
(+) (–)
330.
).
O
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