Table 38: Chassis Alarm Messages for the SCGs
CLI Message
LCD Message
Alarm Type
SCG
SCG-number
Failure
SCG
SCG-number
Failure
Red
SCG
SCG-number
Removed
SCG
SCG-number
Removed
SCG
SCG-number
Not Online
SCG
SCG-number
Not
Online
Yellow
Solution
To troubleshoot the SCGs:
1.
Check the LEDs on the faceplate of each SCG.
2.
Check the LEDs on the craft interface.
3.
Use the
show chassis environment scg
command.
user@host>
show chassis environment scg
SCG 0 status:
State Online - Master clock
Temperature 31 degrees C / 87 degrees F
Power:
GROUND 0 mV
3.3 V 3310 mV
5.0 V 5052 mV
5.6 V 5689 mV
1.8 V bias 1782 mV
3.3 V bias 3306 mV
5.0 V bias 4989 mV
8.0 V bias 8336 mV
GBUS Revision 40
FPGA Revision 1.6
4.
Use the CLI to check for alarms—Issue the
show chassis alarms
command to view the
alarms.
Related
Documentation
T4000 SONET Clock Generators (SCGs) Description on page 49
•
•
T4000 SONET Clock Generators (SCGs) LEDs on page 51
•
Maintaining the T4000 SCGs on page 187
•
Replacing a T4000 SCG on page 277
Troubleshooting the T4000 SIBs
Problem
The following alarms and LEDs indicate a problem with a SIB:
•
A red alarm indicates that the SIB failed or has been removed or that a spare SIB has
failed or has been removed.
•
The red
FAIL
LED on the SIB faceplate is lit.
209
Copyright © 2013, Juniper Networks, Inc.
Chapter 18: Troubleshooting T4000 Router Hardware Components
Summary of Contents for T4000 -
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