Table 39: Fan Module Status Led - Juniper QFabric QFX3000-G Hardware Documentation

QFX3000-G QFabric System Hardware Documentation

Table 39: Fan Module Status LED

LED State
Status Green
Unlit
AC Power Supply in EX4300 Switches
162
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. However, this state is not applicable for EX4300-48MP and
EX4300-48MP-S switches because those switches support only fan modules with
front-to-back airflow direction.
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 765.
The AC power supply in EX4300 switches is a hot-insertable and hot-removable
field-replaceable unit (FRU): You can install it without powering off the switch or
disrupting the switching function.
All the EX4300 switches that are powered by AC power supplies, except EX4300-24T-S,
EX4300-24P-S, EX4300-32F-S, EX4300-48T-S, EX4300-48P-S, and EX4300-48MP-S
switches are shipped with one AC power supply installed in the rear panel of the switches.
EX4300-24T-S, EX4300-24P-S, EX4300-32F-S, EX4300-48T-S, EX4300-48P-S, and
EX4300-48MP-S switches are not shipped with power supplies; you must order the
power supplies separately.
NOTE: EX4300 switches except EX4300-48MP and EX4300-48MP-S
switches support 350 W, 715 W, and 1100 W AC power supplies.
EX4300-48MP and EX4300-48MP-S switches support 715 W, 1100 W, and
1400 W AC power supplies.
This topic describes the AC power supplies.
CAUTION: Do not mix:
"LCD Panel in EX4300 Switches"
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