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All the EX4550 switchmodels, except the EX4550-32F-S switches are shipped with three
fan modules pre-installed in the rear panel of the switches. EX4550-32F-S switches are
not shipped with pre-installed fan modules; you must order them separately.
Two variants of fan modules are available, each with a different airflow
direction—back-to-front airflow, indicated by the label
AIR IN (AFI)
and front-to-back
airflow, indicated by the label
AIR OUT (AFO)
. See
“Cooling System and Airflow in an
EX4550 Switch” on page 35
.
CAUTION:
Do not mix fan modules with different airflow labels (
AIR IN (AFI)
and
AIR OUT (AFO)
) in the same chassis.
Components on the EX4550 Switch
Figure 4 on page 8
shows the components on the front panel of an EX4550-32F switch
(with the module slot cover panel installed).
Figure 4: Components on the Front Panel of an EX4550-32F Switch
1
1
3
6
7
8
9
10
11
4
5
2
g021400
7—
1—
Mini-USB console port
Module slot cover panel
8—
2—
USB port
Air vents
9—
3—
RJ-45 console port
LCD panel
10—
4—
Management port
LCD panel Menu button
11—
5—
SFP+ network ports
Chassis status LEDs
6—LCD panel Enter button
Figure 5 on page 9
shows the components on the front panel of an EX4550-32T switch
(with the module slot cover panel installed).
Copyright © 2015, Juniper Networks, Inc.
8
EX4550 Switch Hardware Guide
Summary of Contents for EX4550
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