Figure 42: Reinstalling a FEB After Installing the M120 Router
Reinstalling the Power Supplies
Reinstall the left power supply first and then the right power supply. To reinstall AC or
DC power supplies (see Figure 43 on page 145):
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. Move the power switch on the power supply faceplate to the standby position, for
the AC power supply. For a DC power supply, switch the circuit breaker on the power
supply faceplate to the off position (O).
3. Using both hands, slide the power supply into the chassis until you feel resistance.
4. Firmly push the power supply into the chassis until it comes to a stop. The power
supply faceplate should be flush with any adjacent power supply faceplates.
5. Tighten the captive screws on the top and bottom flanges of the power supply
faceplate to secure the power supply in the chassis.
6. Repeat the procedure for the remaining power supply.
Copyright © 2018, Juniper Networks, Inc.144
M120 Multiservice Edge Router Hardware Guide
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