Troubleshooting The Mx240 Power System - Juniper mx240 Hardware Manual

MX240 3D Universal Edge Router Hardware Guide
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Troubleshooting the MX240 Power System

Problem
Solution
386
Check the status of each port on a PIC by looking at the LED located on the PIC
faceplate. For information about the meaning of LED states on different PICs, see the
MX Series Interface Module Reference
Check the status of a PIC by issuing the
PIC slots in the FPC are numbered from
user@host> show chassis fpc pic-status
Slot 0 Online
PIC 0 Online
PIC 1 Online
PIC 2 Online
PIC 3 Online
Slot 1 Online
PIC 0 Online
PIC 1 Online
For further description of the output from the command, see the
MX240 PIC Description on page 57
Maintaining MX240 PICs on page 372
Replacing an MX240 PIC on page 297
MX240 PIC Serial Number Label on page 401
Description: The power system is not functioning normally.
Check the LEDs on each power supply faceplate.
If an AC power supply is correctly installed and functioning normally, the
LEDs light steadily, and the
DC OK
If a DC power supply is correctly installed and functioning normally, the
BRKR ON , and INPUT OK
Issue the CLI
show chassis environment pem
power supplies. As shown in the sample output, the value
State indicates that each of the power supplies is functioning normally:
user@host> show chassis environment pem
PEM 0 status:
State
Temperature
DC output
PEM 2 status:
State
Temperature
DC output
.
show chassis fpc pic-status
through , left to right:
0 1
DPC 40x 1GE R
10x 1GE(LAN)
10x 1GE(LAN)
10x 1GE(LAN)
10x 1GE(LAN)
MX FPC Type 3
1x OC-192 SONET
1x OC-192 SONET
LED is not lit.
PS FAIL
LEDs light green steadily.
command to check the status of installed
Online
OK
OK
Online
OK
OK
CLI command. The
.
CLI Explorer
AC OK
PWR OK
in the rows labeled
Online
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