Replacing an MX480 AC Power Supply Cord

1. Disconnecting an MX480 AC Power Supply Cord
2. Connecting an MX480 AC Power Supply Cord

Disconnecting an MX480 AC Power Supply Cord

1. Switch off the dedicated customer site circuit breaker for the power supply, and remove the power cord from the AC power source. Follow the instructions for your site.
2. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
3. Move the AC input switch next to the appliance inlet on the power supply to the off (O) position.
4. Remove the power cord from the power supply.

Connecting an MX480 AC Power Supply Cord

1. Locate a replacement power cord with the type of plug appropriate for your geographical location (see AC Power Cord Specifications for the MX480 Router).
2. Connect the power cord to the power supply.
3. Route the power cord along the cable restraint toward the left or right corner of the chassis. If needed to hold the power cord in place, thread plastic cable ties, which you must provide, through the openings on the cable restraint.
4. Verify that the power cord does not block the air exhaust and access to router components, or drape where people could trip on it.
5. Attach the power cord to the AC power source, and switch on the dedicated customer site circuit breaker for the power supply. Follow the ESD and connection instructions for your site.
6. Switch the AC input switch on the each power supply to the on (—) position and observe the status LEDs on the power supply faceplate. If the power supply is correctly installed and functioning normally, the AC OK and DC OK LEDs light steadily, and the PS FAIL LED is not lit.