Uplink Modules; Power Supplies - Juniper EX4500 Hardware Manual

Complete Hardware Guide for EX4500 Ethernet Switches

Uplink Modules

Power Supplies

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Documentation
6
The number of EX4500 switches that can be interconnected into a Virtual Chassis
composed exclusively of EX4500 switches depends on the Junos OS release running on
the switches. See "Understanding EX4200 and EX4500 Virtual Chassis Hardware
Configurations" on page 91.
EX4200 and EX4500 switches can be connected together into the same Virtual Chassis
to form a mixed EX4200 and EX4500 Virtual Chassis. You can interconnect EX4200
and EX4500 switches through the dedicated Virtual Chassis ports (VCPs) to form a
mixed Virtual Chassis. You can also interconnect EX4500 switches through SFP+ uplink
module ports or SFP+network ports configured as VCPs to form a Virtual Chassis. The
number of EX4200 and EX4500 switches that can be interconnected into a mixed Virtual
Chassis depends on the Junos OS release running on the switches. See
EX4200 and EX4500 Virtual Chassis Hardware Configurations" on page
NOTE: Operating an EX4500 switch without the intraconnect module or the
Virtual Chassis module is not supported.
EX4500 switches running Junos OS Release 10.4R2 or later 10.4 releases will
not boot if you do not install the intraconnect module in the switch.
EX4500 switches running Junos OS Release 11.1R1 or later releases will not
boot if you install neither the intraconnect module nor the Virtual Chassis
module in the switch.
Optional uplink modules are available for EX4500 switches. Two uplink modules can be
installed in an EX4500 switch. Each uplink module provides four SFP+ ports for connecting
to core devices in a data center. You can install SFP or SFP+ transceivers in these ports.
You can also configure the uplink module ports as VCPs to form a Virtual Chassis.
EX4500 switches support both AC and DC power supplies. EX4500 switches ship with
one AC or DC power supply installed. You can install a second AC or DC power supply in
your EX4500 switch. See "AC Power Supply in EX4500 Switches" on page 27
Power Supply in EX4500 Switches" on page
CAUTION: Mixing different types (AC and DC) of power supplies or power
supplies with front-to-back and back-to-front airflow in the same chassis is
not supported.
EX4500 Switch Models on page 7
Field-Replaceable Units in EX4500 Switches on page 23
EX3300, EX4200, and EX4500 Virtual Chassis Overview
30.
Copyright © 2011, Juniper Networks, Inc.
"Understanding
91.
and "DC