Fan Module Status; Table 26: Fan Module Status Led - Juniper EX4300 Hardware Manual

EX4300 Switch Hardware Guide

Fan Module Status

Table 26: Fan Module Status LED

LED State
Status Green
Unlit
Related
Documentation
48
In data center deployments, position the switch in such a manner that the
labels on switch components are next to the cold aisle, and
switch components are next to the hot aisle.
Each switch has a status LED for each fan module next to the fan module slot on the
rear panel of the chassis. The Status LED indicates the status of the fan module.
Table 26 on page 48 describes the Status LED on the fan module in an EX4300 switch.
Description
The fan module is functioning normally.
Indicates one of the following:
The fan module is not installed.
The fan module is not functioning normally.
The airflow direction of the fan module does not match with the airflow direction of
other components.
Under normal operating conditions, the fan modules operate at a moderate speed.
Temperature sensors in the chassis monitor the temperature within the chassis.
The system raises an alarm if a fan module fails or if the ambient temperature inside the
chassis rises above the acceptable range. If the temperature inside the chassis rises
above the threshold temperature, the system shuts down automatically.
You can check the status of fans and the chassis temperature from the Environment
Status option in the Status menu on the LCD panel. See
on page 27.
Field-Replaceable Units in EX4300 Switches on page 26
EX4300 Switches Hardware Overview on page 3
Prevention of Electrostatic Discharge Damage on page 313
Installing a Fan Module in an EX4300 Switch on page 229
Removing a Fan Module from an EX4300 Switch on page 231
AIR IN (AFI)
labels on
AIR OUT (AFO)
"LCD Panel in EX4300 Switches"
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