Troubleshooting The T640 Power System - Juniper T640 Hardware Manual

Solution
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Troubleshooting the T640 Power System

Problem
Copyright © 2013, Juniper Networks, Inc.
To troubleshoot the PICs:
To check the status of each port on a PIC, look at the LED located on the PIC faceplate.
For information about the meaning of LED states on different PICs, see the
Interface Module Reference
To check the status of a PIC, issue the following CLI command. The PIC slots in the
FPC are numbered from
user@host> show chassis fpc pic-status
Slot 0 Online
PIC 0 Online
PIC 2 Present
PIC 3 Online
Slot 2 Online
PIC 0 Online
PIC 1 Online
PIC 2 Online
Slot 3 Online
PIC 0 Online
PIC 1 Online
PIC 2 Online
PIC 3 Online
Slot 4 Online
PIC 0 Online
Slot 6 Online
PIC 0 Online
PIC 1 Online
Slot 7 Online
PIC 0 Online
For further description of the output from the command, see show chassis environment
fpc.
T640 PIC Description on page 29
Maintaining T640 PICs and PIC Cables on page 191
Replacing a T640 PIC on page 293
The following alarms, LEDs, and other conditions indicate a problem with the power
system:
If all power supplies have failed, the system temperature might have exceeded the
threshold, causing the system to shut down.
The following indicate a problem on a two-input 160-A DC power supply:
The and
DC OK CB OK
If the yellow CB TRIP LED lights but the power supply is not going through a startup
test, the power supply detects a fault (the power supply fails, does not have sufficient
airflow, or is not properly inserted).
Chapter 16: Troubleshooting T640 Router Hardware Components
.
through , top to bottom:
0 3
E-FPC Type 3
1x 10GE(LAN),DWDM
1x OC-192 SONET XFP- Hardware Error
1x 10GE(LAN),XENPAK
E2-FPC Type 2
1x OC-48 SONET, SMIR
2x OC-12 ATM-II IQ, MM
8x 1GE(LAN), IQ2
FPC Type 3
1x 10GE(LAN),XENPAK
1x 10GE(LAN),XENPAK
8x 1GE(TYPE3), IQ2
8x 1GE(TYPE3), IQ2
FPC Type 4
4x OC-192 SONET XFP
FPC Type 3
4x OC-48 SONET
1x Tunnel
FPC Type 4
1x OC-768 SONET SR
LEDs are off.
T640
207