• Supported Platforms
• M7i Routers

• Related Topics
• Connecting Power to an AC-Powered M7i Router
• Removing an M7i AC Power Cord
• M7i AC Power Electrical Safety Guidelines and Warnings
• M7i AC Power Supply
• Removing an M7i AC Power Supply

Installing an M7i AC Power Supply

To install an AC power supply, follow this procedure (see Figure 1):

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).
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.

   Note: After powering off a power supply, wait at least 60 seconds before turning it back on. After powering on a power supply, wait at least 60 seconds before turning it off. If the router is completely powered off when you power on the power supply, the Routing Engine boots as the power supply completes its startup sequence. If the Routing Engine finishes booting and you need to power off the router again, see Powering Off the M7i Router. After a power supply is powered on, it can take up to 60 seconds for status indicators—such as the output status LED on the power supply, the command display output, and messages on the LED display on the craft interface—to indicate that the power supply is functioning normally. Ignore error indicators that appear during the first 60 seconds.