Figure 169: Three-Phase Wye Ac Power Supply - Juniper T640 Hardware Manual

Copyright © 2010, Juniper Networks, Inc.
NOTE: After powering off a power supply, wait at least 60 seconds before
turning it back on.
Remove the ESD grounding strap from the ESD point on the chassis, and attach it to
4.
an approved site ESD grounding point. See the instructions for your site.
Disconnect the AC power cord (see Figure 169 on page 291) from the power source.
5.

Figure 169: Three-Phase Wye AC Power Supply

Remove the ESD grounding strap from the approved site ESD grounding point. See
6.
the instructions for your site. Reconnect the strap to one of the ESD points on the
chassis.
Using a number 2 Phillips (+) screwdriver, unscrew the two screws on the metal cover
7.
protecting the AC terminal block.
Chapter 17: Replacing T640 Router Hardware Components
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