Juniper Networks MX480 - Manual (Page 172)

• Routinely check the status LEDs on the power supply faceplates and the craft interface
to determine if the power supplies are functioning normally.
• Check the red and yellow alarm LEDs on the craft interface. Power supply failure or
removal triggers an alarm that causes one or both of the LEDs to light. You can display
the associated error messages by issuing the following command:
user@host> show chassis alarms
• Periodically inspect the site to ensure that the grounding and power cables connected
to the router are securely in place and that there is no moisture accumulating near the
router.
Related
Documentation
• Power Supply LEDs on the MX480 Craft Interface on page 39
• MX480 AC Power Supply Description on page 42
• MX480 DC Power Supply Description on page 44
• Troubleshooting Resources for MX480 Routers on page 149
• MX480 Site Preparation Checklist on page 53
Copyright © 2013, Juniper Networks, Inc. 148
MX480 3D Universal Edge Router Hardware Guide