Maintaining The M7I Power Supplies - Juniper M7i Hardware Manual

M7i Multiservice Edge Router Hardware Guide
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Maintaining the M7i Power Supplies

Purpose
Action
194
Replacing an M7i FIC or PIC Cable on page 163
Troubleshooting the M7i FIC or PICs on page 205
For optimum router performance, verify the condition of the power supplies.
Check that the green OUTPUT OK
For more information about the LED, see
Issue the following CLI command to check the status of the power supplies. As shown
in the sample output, the value
is operating normally:
user@host> show chassis environment
Class Item
Power Power Supply 0
Power Supply 1
Temp Intake
PICs
Power Supplies
CFEB Intake
CFEB Exhaust
Routing Engine
Fans Left Fan Tray
Left Tray front fan
Left Tray second fan
Left Tray third fan
Left Tray fourth fan
For further description of the output from the command, see the
Check the red and yellow alarm LEDs on the FIC. 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 CLI command:
user@host> show chassis alarms
For a list of possible alarm messages, see
on page 200.
Verify that the power source has the proper current rating and that each power supply
is connected to a separate power source.
Verify that the cable or cord connecting the power supply to the external power source
is securely in place and that there is no moisture accumulating near the router.
Verify that the cable or cord from the power source to the router is not damaged. If the
insulation is cracked or broken, replace the cable or cord immediately.
LED is lit on the faceplate of both power supplies.
"M7i Power Supply LEDs" on page
in the column indicates that the power supply
OK Status
Status Measurement
OK
OK
OK 24 degrees C / 75 degrees F
OK 27 degrees C / 80 degrees F
OK 27 degrees C / 80 degrees F
OK 27 degrees C / 80 degrees F
OK 33 degrees C / 91 degrees F
OK 26 degrees C / 78 degrees F
Present
OK Spinning at normal speed
OK Spinning at normal speed
OK Spinning at normal speed
OK Spinning at normal speed
"Hardware and Interface Alarm Messages"
Copyright © 2019, Juniper Networks, Inc.
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CLI Explorer