Juniper EX4550 Hardware Guide

Expansion Modules in EX4550 Switches
EX4550 switches support three optional expansion modules—an 8-port 10-Gigabit SFP+
expansion module, an 8-port 10GBASE-T expansion module, and a 2-port 40-Gigabit
QSFP+ expansion module. Expansion modules are hot-insertable and hot-removable
field replaceable units (FRUs).
Table 8 on page 23 shows the model numbers, names of the expansion modules with a
short description, and the Junos OS release in which the module were released.
Table 8: Expansion Modules in EX4550 Switches
First Junos OS
ReleaseDescriptionModule NameModel Number
12.2R1An SFP+ expansion module can house up to eight 10-gigabit
SFP+ transceivers or eight 1-gigabit SFP transceivers or in
a combination of SFP and SFP+ transceivers. You can use
the ports on the expansion module to connect the switch
to other devices. You can also configure these ports as
Virtual Chassis ports (VCPs) and use them to connect the
switch in a Virtual Chassis configuration.
8-port SFP+
expansion module
EX4550-EM-8XSFP
12.2R4A 10GBASE-T expansion module can house up to eight
100-Megabit, 1-Gigabit, or 10-Gigabit BASE-T Ethernet
connectors. You can use the ports on the expansion module
to connect the switch to other devices. You can also
configure these ports as VCPs and use them tointerconnect
EX4550 switches in an Virtual Chassis configuration.
8-port 10GBASE-T
expansion module
EX4550-EM-8XT
13.2X50-D10
NOTE: Starting
with Release
13.2X50-D15, you
can configure
QSFP+ ports as
VCPs.
A QSFP+ expansionmodule can house up to two40-Gigabit
QSFP+transceivers.You canusetheportson the expansion
module to connect the switch to other devices. You can also
configure these ports as Virtual Chassis ports (VCPs) and
use them to interconnect EX4550 switches in a Virtual
Chassis configuration.
2-port 40-Gigabit
QSFP+ expansion
module
EX4550-EM-2QSFP
NOTE: The expansion modules and transceivers are not part of the EX4550
switch shipping configuration. You must order them separately.
You can install up to two expansion modules in an EX4550 switch—one in each of the
module slots on the front panel and the rear panel of the switch. By installing an expansion
module, you add more ports to your switch, thereby increasing the port density of the
switch. You can also use the ports on the expansion module to connect the switch to
core devices or to connect an access switch to a distribution switch. Besides, you can
configure theseports as Virtual Chassis ports (VCPs) and use them toconnect the switch
in a Virtual Chassis configuration.
Figure 8 on page 24 shows the SFP+ expansion module.
23Copyright © 2015, Juniper Networks, Inc.
Chapter 2: Chassis Components and Descriptions

Juniper EX4550 Specifications

Console Connection Settings

baud rate	9600
data bits	8
stop bits	1