Maintaining The T640 Control Boards - Juniper T640 Hardware Manual

Maintaining the T640 Control Boards

Purpose
Action
Related
Documentation
Copyright © 2017, Juniper Networks, Inc.
T640 RE-C1800 LEDs on page 43
Troubleshooting the T640 Host Subsystem on page 472
For optimum router performance, verify the condition of the router's control boards.
On a regular basis:
Check the LEDs on the control board faceplate. During normal operations:
The green LED on the control board faceplate is lit.
OK
The green host subsystem
The red host subsystem
The yellow LED on the control board faceplate is not lit.
FAIL
Issue the show chassis environment cb
boards. The output is similar to the following:
user@host> show chassis environment cb
CB 0 status:
State
Temperature
Power:
1.8 V
2.5 V
3.3 V
4.6 V
5.0 V
12.0 V
3.3 V bias
8.0 V bias
GBUS Revision
FPGA Revision
For further description of the output from the commands, seeshow chassis environment
cb.
T640 Control Boards Description
T640 Standard Control Boards LEDs on page 64
T640 T Series Control Boards (T-CBs) LEDs on page 66
T640 LCC-CB LEDs on page 62
Troubleshooting the T640 Host Subsystem on page 472
Troubleshooting the T640 Control Board on page 473
LED on the craft interface is lit.
OK
LED on the craft interface is not lit.
FAIL
command to check the status of the control
Online Master
29 degrees C / 84 degrees F
1809 mV
2496 mV
3295 mV
4687 mV
5042 mV
11985 mV
3277 mV
7472 mV
40
7
Chapter 32: Maintaining Components
449