> show chassis alarms
4 alarms currently active
Alarm time Class Description 2013-01-11 14:48:26 UTC Minor PEM 0 Dipswitch 0
Feed Connection 2
3. If the show chassis alarms output shows an alarm on Dipswitch, issue the show chassis
power command to check the DIP switch position.
# run show chassis power
PEM 0:
State: Online
AC input: OK (1 feed expected, 2 feed connected)
Capacity: 4100 W (maximum 4100 W)
DC output: 855 W (zone 0, 15 A at 57 V, 20% of capacity)
In this example, the DIP switch is in the wrong position since there is one AC feed
expected but two AC feeds are connected. Change the DIP switch to position 1. This
should clear the alarm.
NOTE: Changing the DIP switchposition doesnot impacttraffic.However,
it is always recommended to do so in a maintenance window.
Related
Documentation
• MX480 AC Power Supply Description on page 100
• MX480 DC Power Supply Description on page 102
• Replacing an MX480 AC Power Supply on page 367
• Troubleshooting Resources for MX480 Routers on page 439
453Copyright © 2017, Juniper Networks, Inc.
Chapter 30: Troubleshooting Components
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