Juniper T1600 Hardware Manual page 300

T1600 Core Router Hardware Guide
276
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
4.
the strap to one of the ESD points on the chassis.
Switch the circuit breakers on the power supply faceplate to the off position (
5.
Remove the clear plastic cover protecting the terminal studs on the faceplate.
6.
Remove the nut and washer from the terminal stud on the power supply (see Figure
7.
160 on page 276). (Use a 7/16-in. (11 mm) nut driver.)
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.
Figure 160: Disconnecting a Power Cable from a Three-Input 240-A DC
Power Supply
O
(+) and (–) to indicate
Copyright © 2010, Juniper Networks, Inc.
).