Juniper EX9253 Hardware Manual page 183

Table 38: Chassis Component Alarm Conditions on EX9253 Switches
Chassis Alarm Condition
Component
A power supply has a high
temperature.
A power supply input has failed.
A power supply output has
failed.
A power supply has failed.
AC and DC power supplies are
installed.
Inadequate number of power
supplies.
Routing Engine Excessive framing errors on
console port.
An excessive framing error alarm
is triggered when the default
framing error threshold of 20
errors per second on a serial port
is exceeded.
A faulty serial console port cable
might be connected to the
device.
Error in reading or writing SSD.
(Continued)
Alarm Remedy
Severity
Major (red) Replace the failed power supply.
Major (red) Check power supply input connection.
Major (red) Check power supply output connection.
Major (red) Replace the failed power supply.
Major (red) Do not mix AC and DC power supplies.
Major (red) Install an additional power supply.
Minor Replace the serial cable connected to the
(yellow) device.
If the cable is replaced and no excessive
framing errors are detected within five
minutes from the last detected framing
error, the alarm is cleared automatically.
Minor Reformat the SSD and install the bootable
(yellow) image. If this fails, replace the failed
Routing Engine.
174