• M7i AC Power Supply on page 60
• M7i Router AC Power Supply Specifications on page 85
• Installing an M7i AC Power Supply on page 179
Installing an M7i AC Power Supply
To install an AC power supply (see Figure 66 on page 180):
1. Verify that the switch on the power supply faceplate is in the OFF (O) position.
2. Locate the power cord shipped with the router, which should be appropriate for your
geographical location (see “M7i Router AC Power, Connection, and Power Cord
Specifications” on page 83).
3. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and connect
the strap to one of the ESD points on the chassis. Verify that the router is attached to
a proper earth ground.
4. Place one hand under the power supply and grasp the handle on the faceplate with
the other hand. Slide the power supply into the chassis until it contacts the midplane.
5. Starting with the bottom screw, tighten (but do not overtighten) the thumbscrews
at each corner of the power supply faceplate.
6. Insert the appliance coupler end of the power cord into the appliance inlet on the
power supply faceplate and insert the plug into an AC power source receptacle. Verify
that the power cord does not block access to router components or drape where
people could trip on it.
7. Press the power switch on the faceplate to the ON ( | ) position. When the power
supply has powered on successfully, the green OUTPUT OK LED lights steadily.
179Copyright © 2019, Juniper Networks, Inc.
Chapter 25: Replacing Power System Components
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