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Table 3: Airflow Direction in Power Supply for OCX1100 Switches
Power Supply Rating
Label on Power Supply
460 W AC
AIR IN (AFI)
460 W AC
AIR OUT (AFO)
800 W DC
AIR IN (AFI)
800 W DC
AIR OUT (AFO)
Fan Modules
Copyright © 2017, Juniper Networks, Inc.
For more information, see
page
17.
CAUTION:
Do not install:
AC and DC power supplies in the same chassis.
AC power supplies in DC switch models or DC power supplies in AC switch
models.
Power supplies with different airflow labels (
(AFO)
) in the same chassis.
Power supplies and fan modules with different airflow labels (
and
AIR OUT (AFO)
The fan modules in OCX1100 switches are hot-insertable and hot-removable
field-replaceable units (FRUs). OCX1100-48SX switches are shipped with four fan
modules preinstalled in the rear panel of the switch.
The fan modules are available in two models that have different airflow
directions—back-to-front airflow, indicated by the label
airflow, indicated by the label
OCX1100 Switches" on page
Direction of Airflow
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.
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.
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.
"Cooling System and Airflow in an OCX1100 Switches" on
) in the same chassis.
. See
"Cooling System and Airflow in an
AIR OUT (AFO)
17.
Chapter 1: System Overview
and
AIR IN (AFI)
AIR OUT
AIR IN (AFI)
and front-to-back
AIR IN (AFI)
5
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