Juniper EX4550 Hardware Guide

Table 4: EX4550 Switch Model Number, Shipped Components, and Supported Junos OS Release
FirstJunos
OS
ReleasePower SupplyFan ModulesDirection of Airflow
Number and
Types of PortsModel Number
12.2R1One AC power
supply(with power
cord) with an AFI
label on its handle
Three fan
modules; each
with an AIR IN
(AFI) label
Back-to-front—air
intake to cool the
chassis is through the
vents on the rear panel
of the chassis, and hot
air exhauststhrough the
ventson the frontpanel
of the chassis.
32-port 10-Gigabit
SFP+
EX4550-32F-AFI
12.2R1One AC power
supply(with power
cord) with an AFO
label on its handle
Three fan
modules; each
with an AIR OUT
(AFO) label
Front-to-back—air
intake to cool the
chassis is through the
ventson the frontpanel
of the chassis, and hot
air exhauststhrough the
vents on the rear panel
of the chassis.
32-port 10-Gigabit
SFP+
EX4550-32F-AFO
12.2R1One DC power
supply with an AFI
label on its handle
Three fan
modules; each
with an AIR IN
(AFI) label
Back-to-front—air
intake to cool the
chassis is through the
vents on the rear panel
of the chassis, and hot
air exhauststhrough the
ventson the frontpanel
of the chassis.
32-port 10-Gigabit
SFP+
EX4550-32F-DC-AFI
12.2R1One DC power
supplywithan AFO
label on its handle
Three fan
modules; each
with an AIR OUT
(AFO) label
Front-to-back—air
intake to cool the
chassis is through the
ventson the frontpanel
of the chassis, and hot
air exhauststhrough the
vents on the rear panel
of the chassis.
32-port 10-Gigabit
SFP+
EX4550-32F-DC-AFO
12.3R5Power supplies for
this model are not
shipped by default;
you must
separately order
either AC power
supplies or DC
power supplies.
Fan modules for
this model are not
shipped by default;
you must
separately order
either three AIR
OUT (AFO)
labelled or three
AIR IN (AFI)
labelled fan
modules.
–32-port 10-Gigabit
SFP+
EX4550-32F-S
Copyright © 2015, Juniper Networks, Inc.10
EX4550 Switch Hardware Guide

Juniper EX4550 Specifications

Console Connection Settings

baud rate	9600
data bits	8
stop bits	1