Airflow Direction In Ex4300 Switch Models - Juniper EX4300 Series Hardware Manual

Table 27: Fan Modules in EX4300 Switches
Fan Module
EX4300-FAN
EX4300-FAN-AFI

Airflow Direction in EX4300 Switch Models

Table 28 on page 84 shows the direction of airflow in EX4300 switch models as shipped.
Table 28: Airflow Direction in EX4300 Switch Models
Model Number
•
EX4300-24T
•
EX4300-24P
•
EX4300-32F
•
EX4300-48T
•
EX4300-48P
•
EX4300-32F-DC
•
EX4300-48T-DC
EX4300-48T-AFI
Label on the Fan Module
AIR OUT (AFO)
AIR IN (AFI)
Fan Modules and Power Supply
The switch ships with two fan
modules and an AC power supply,
each with a label AIR OUT (AFO).
The switch ships with two fan
modules and a DC power supply,
each with a label AIR OUT (AFO).
The switch ships with two fan
modules and an AC power supply,
each with a label AIR IN (AFI).
Direction of Airflow
Front-to-back—that is, air intake to
cool the chassis is through the vents
on the front panel of the chassis
and hot air exhausts through the
vents on the rear panel of the
chassis.
Front-to-back—that is, air intake to
cool the chassis is through the vents
on the front panel of the chassis
and hot air exhausts through the
vents on the rear panel of the
chassis.
Back-to-front—that is, air intake to
cool the chassis is through the vents
on the rear panel of the chassis and
hot air exhausts through the vents
on the front panel of the chassis.
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