Power Supplies; Uplink Modules - Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual

Complete Software Guide for Junos
AC power
supply

Uplink Modules

Power Supplies

36
®
OS for EX Series Ethernet Switches, Release 10.4
Figure 2: EX4500 Switch Rear
Intraconnect
module
Fan tray
EX4500 switches are available in models with either front-to back airflow or back-to-front
airflow and hardware that is Converged Enhanced Ethernet (CEE) capable or not. All five
models provide 40 wire-speed 10-gigabit small form-factor pluggable (SFP+) network
ports that can house either 1-Gigabit Ethernet connectors or 10-Gigabit Ethernet
connectors. All models support two optional high-speed uplink modules. See "EX4500
Switch Models" on page 37.
NOTE: The side of the switch where the network ports are located is the front
of the switch.
To provide carrier-class reliability, EX4500 switches include:
Dual redundant, load-sharing power supplies that are field-replaceable, hot-removable,
and hot-insertable.
A field-replaceable fan tray with five fans. The switch remains operational if a single
fan fails.
Junos OS with its modular design that enables failed system processes to gracefully
restart.
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.
EX4500 switches support both AC and DC power supplies. You can install up to two AC
or DC power supplies in an EX4500 switch. See AC Power Supply in EX4500 Switches
and DC Power Supply in EX4500 Switches.
Fan tray handle
Copyright © 2010, Juniper Networks, Inc.