3.
Reinstalling the T640 Control Boards on page 198
4.
Reinstalling the T640 SIBs on page 199
5.
Reinstalling the T640 Power Supplies on page 200
6.
Reinstalling the T640 FPCs on page 201
7.
Reinstalling T640 Standard or Quiet Front Fan Trays on page 203
8.
Reinstalling the T640 Cable Management System on page 205
Reinstalling the T640 Standard or Quiet Rear Fan Tray
To reinstall the rear fan tray (see Figure 82 on page 197):
1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
the strap to an approved site ESD grounding point. See the instructions for your site.
2. Grasp the fan tray by its handles and insert it straight into the chassis.
3. Tighten the captive screws on the top and bottom of the fan tray faceplate to secure
it in the chassis.
Copyright © 2017, Juniper Networks, Inc.196
T640 Core Router Hardware Guide
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