NOTE: After powering off a power supply, wait at least 60 seconds before
turning it back on.
To remove an AC power supply (see Figure 95 on page 241):
1. Attach an ESD grounding strap to your bare wrist and connect the strap to one of the
ESD points on the chassis.
2. Move the power switch on the power supply faceplate to the standby position.
3. Unplug the power cords from the power source receptacles.
4. Remove the cable restraint from the lower edge of the power supply faceplate by
removing its retainer screw.
5. Unplug the power cord from the appliance inlet on the power supply faceplate.
6. Loosen the captive screw on each flange at the top and bottom of the power supply
faceplate completely.
7. Grasp the handle on the power supply faceplate and pull firmly. Slide it halfway out
of the chassis.
8. Place one hand underneath the power supply to support it and slide it completely out
of the chassis.
WARNING: Do not touch the power connectors on the rear of the power
supply (see Figure 96 on page 241). They can contain dangerous voltages.
Copyright © 2018, Juniper Networks, Inc.240
M120 Multiservice Edge Router Hardware Guide
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