Maintaining The Mx480 Power Supplies; Replacing An Mx480 Ac Power Supply - Juniper MX480 Hardware Manual

MX480 Universal Routing Platform Hardware Guide

Maintaining the MX480 Power Supplies

Purpose
Action
See Also

Replacing an MX480 AC Power Supply

318
For optimum router performance, verify the condition of the power supplies.
On a regular basis:
PEM 0 status:
State
Temperature
AC Input:
DC Output
PEM 1 status:
State
Temperature
AC Input:
DC Output
Make sure that the power and grounding cables are arranged so that they do not
obstruct access to other router components.
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.
Power Supply LEDs on the MX480 Craft Interface on page 39
MX480 AC Power Supply Description on page 45
MX480 DC Power Supply Description on page 53
Troubleshooting Resources for MX480 Routers on page 353
MX480 Site Preparation Checklist on page 139
Removing an MX480 AC Power Supply on page 319
1.
Installing an MX480 AC Power Supply on page 320
2.
Online
OK
OK
Voltage(V) Current(A) Power(W)
59 0
Online
OK
OK
Voltage(V) Current(A) Power(W)
59 18
Load(%)
0 0
Load(%)
1062 42
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