Installing A T640 Six-Input Dc Power Supply; Figure 197: Removing A Dc Power Supply; Figure 198: Rear Of The Power Supply Showing Midplane Connectors - Juniper T640 Hardware Manual

Installing a T640 Six-Input DC Power Supply

Copyright © 2017, Juniper Networks, Inc.

Figure 197: Removing a DC Power Supply

WARNING: Do not touch the power connectors on the rear of the power
supply (see Figure 198 on page

Figure 198: Rear of the Power Supply Showing Midplane Connectors

Each DC power supply weighs approximately 39.7 lb (18.0 kg). To install a six-input DC
power supply:
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.
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.
Chapter 29: Replacing Power System Components
383). They can contain dangerous voltages.
383