Table 38: Airflow Direction In Ex4300 Switch Models - Juniper QFabric QFX3000-G Hardware Documentation

QFX3000-G QFabric System Hardware Documentation

Table 38: Airflow Direction in EX4300 Switch Models

Model Number
EX4300-24T
EX4300-24P
EX4300-32F
EX4300-48T
EX4300-48P
EX4300-48MP
EX4300-32F-DC
EX4300-48T-DC
EX4300-48T-AFI
EX4300-48T-DC-AFI
Front-to-Back Airflow
158
Fan Modules and Power Supply
The switch ships with two fan modules and
an AC power supply, each with a label
.
OUT (AFO)
The switch ships with two fan modules and a
DC power supply, each with a label
.
(AFO)
The switch ships with two fan modules and
an AC power supply, each with a label
.
(AFI)
The switch ships with two fan modules and a
DC power supply, each with a label
(AFI) .
CAUTION: Do not mix:
AC and DC power supplies in the same chassis
Power supplies and fan modules with different airflow labels (
and AIR OUT (AFO)
Fan modules with different airflow labels (
in the same chassis.
Power supplies and fan modules with different airflow labels (
and
AIR OUT (AFO)
In the EX4300 switch models that have front-to-back airflow, the air intake to cool the
chassis is through the vents on the front panel of the switch and hot air exhausts through
the vents on the rear panel. See
Figure 116 on page 160.
Direction of Airflow
Front-to-back—that is, air intake to cool the
chassis is through the vents on the front panel
AIR
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
AIR OUT
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
AIR IN
of the chassis and hot air exhausts through
the vents on the front panel of the chassis.
Back-to-front—that is, air intake to cool the
AIR IN 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.
) in the same chassis
AIR IN (AFI)
) in the same chassis.
Figure 114 on page 159, Figure 115 on page
Copyright © 2018, Juniper Networks, Inc.
AIR IN (AFI)
and )
AIR OUT (AFO)
AIR IN (AFI)
159, and