M320 Chassis And Interface Alarm Messages; Troubleshooting M320 Router Hardware Components; Table 20: M320 Chassis Alarm Messages - Juniper M320 Hardware Manual

Related
Documentation

M320 Chassis and Interface Alarm Messages

Table 20: M320 Chassis Alarm Messages

Component Alarm Type
Fans Red
Yellow
Temperature sensors Red
Yellow
Copyright © 2010, Juniper Networks, Inc.
PIC LEDs—Each port on each PIC has an LED that indicates the status of the port. For
more information, see the M320 Multiservice Edge Router PIC Guide.
Power supply LEDs—One LED on each power supply faceplate indicates the status of
that power supply.
M320 Craft Interface Description on page 28
M320 Chassis and Interface Alarm Messages on page 127.
When the Routing Engine detects an alarm condition, it lights the red or yellow alarm
LED on the craft interface as appropriate, trips the corresponding alarm relay contact on
the CIP, and reports the cause of the alarm in the craft interface LCD. To view a more
detailed description of the alarm cause, issue the
user@host> show chassis alarms
There are two classes of alarm messages:
Chassis alarms—Indicate a problem with a chassis component such as the cooling
system or power supplies, as described in Table 20 on page 127.
Interface alarms—Indicate a problem with a specific network interface, as described
in Table 21 on page 128.
In both Table 20 on page 127 and Table 21 on page 128, the text in the column labeled "LCD
Message" appears in the LCD. The text in the column labeled "CLI Message" appears in
the output from the
show chassis alarms
LCD Display Message
Fan Failure
Fans Missing
Fan Removed
Temperature Hot
Sensor Failure
Temperature Warm
Chapter 12: Troubleshooting M320 Router Hardware Components
show chassis alarms
command.
CLI Message
fan-name Failure
Too many fans missing or failing
fan-name Removed
Temperature Hot
Temperature sensor failure
Temperature Warm
CLI command:
127