Juniper EX4100 Hardware Manual page 211

Table 42: Chassis Component Alarm Conditions on EX4100 and EX4100-F Switches
Chassis Alarm Condition
Component
An unknown power
supply is installed.
A mix of power
supplies with different
airflow directions is
installed.
A mix of fan modules
and power supplies
with different airflow
directions is installed.
Fan module A fan module is not
installed.
A fan module has
failed.
A mix of fan modules
with different airflow
directions is installed.
A mix of fan modules
and power supplies
with different airflow
directions is installed.
Alarm Severity Remedy
Major Install a power supply recommended by
Juniper Networks.
Major Do not mix power supplies with different
airflow directions in the same chassis.
Major Do not mix fan modules and power supplies
with different airflow directions in the same
chassis.
Major Install the fan module.
Major Replace the fan module.
Major Do not mix fan modules with different
airflow directions in the same chassis.
Major Do not mix fan modules and power supplies
with different airflow directions in the same
chassis.
(Continued)
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