Troubleshooting The T640 Cooling System; Table 94: Scg Alarm Messages - Juniper T640 Hardware Manual

Table 94: SCG Alarm Messages

Alarm Type LCD Message
Red
RED ALARM
Failure
RED ALARM
RED ALARM
SCG-number
RED ALARM
SCG-number
RED ALARM
SCG-number
RED ALARM
SCG-number
Yellow YELLOW ALARM
SCG-number
YELLOW ALARM
SCG-number
YELLOW ALARM
SCG-number
Solution
Related
Documentation

Troubleshooting the T640 Cooling System

Problem
Copyright © 2017, Juniper Networks, Inc.
CLI Message
— SCG-number
SCG RED ALARM
Failure
—
No SCG Online RED ALARM
—
SCG RED ALARM
SCG-number
Volt Snsr Fail
—
SCG RED ALARM
SCG-number
Ext-A LOS
—
SCG RED ALARM
SCG-number
Ext-B LOS
—
SCG RED ALARM
INT CLK Fail SCG-number
Failure
— SCG YELLOW ALARM
Not Online SCG-number
— SCG YELLOW ALARM
Removed SCG-number
— SCG YELLOW ALARM
SCG-number
TmpSnsr Fail
To troubleshoot the SCGs:
Check the LEDs on the faceplate of each SCG and on the craft interface.
1.
Use the CLI to check for alarms.
2.
Standalone router—Issue the
Router in a routing matrix—Issue the
to view the alarms.
T640 SONET Clock Generators (SCGs) LEDs on page 28
T640 SONET Clock Generators (SCGs) Description on page 27
Description:
Chapter 33: Troubleshooting Components
— SCG-number
SCG
—
No SCG Online
—
SCG
Volt Sensor Fail
—
SCG
External-A LOS
—
SCG
External-B LOS
—
SCG
Internal Clock
— SCG
Not Online
— SCG
Removed
— SCG
Temp Sensor Fail
command to view the alarms.
show chassis alarms
show chassis alarms lcc lcc-number
command
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