Juniper EX Series Complete Hardware Guide

Figure 62: Removing a Power Supply from an EX-series Switch
Locking lever
g020090
Loosen captive screw.
Related Topics ■ Installing a Power Supply in an EX-series Switch on page 107
■ Installing and Removing EX-series Switch Hardware Components on page 100
■ Power Supply in EX 3200 and EX 4200 Switches on page 27
■ Field-Replaceable Units in EX-series Switches on page 99
■ AC Power, Connection, and Power Cord Specifications on page 56
■ EX 3200 Switch—Rear-Panel Description on page 10
■ EX 4200 Switch—Rear-Panel Description on page 12
Installing a Fan Tray in an EX-series Switch
EX-series switches have a single field-replaceable unit (FRU) fan tray on the rear
panel. The fan tray is hot-removable and hot-insertable FRU: you can remove and
replace it while the switch is functioning without turning off power to the switch or
disrupting switch functions.
Ensure you have the following tools and parts available to install a fan tray in an
EX-series switch chassis:
■ Electrostatic discharge (ESD) grounding strap
■ Phillips (+) screwdriver, number 2
Ensure you understand how to prevent ESD damage (see “Preventing Electrostatic
Discharge Damage” on page 138).
To install a fan tray in an EX-series switch chassis (see Figure 63 on page 111 and
Figure 64 on page 111):
1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and
connect the strap to the ESD point on the chassis.
110 ■ Installing a Fan Tray in an EX-series Switch
Complete Hardware Guide for EX 3200 and EX 4200 Switches

Juniper EX Series Specifications

General

Series	EX Series
Category	Switch
Layer	Layer 2/3
Operating System	Junos OS
Managed	Yes
ACLs	Yes
Port Density	Varies by model
Power over Ethernet (PoE)	Available on some models
Virtual Chassis	Supported on some models
Form Factor	Fixed configuration, Modular
Switching Capacity	Varies by model
Forwarding Rate	Varies by model
Power Supply	Varies by model (AC or DC, redundant options available)
Management	CLI, Web UI, SNMP
Redundancy	Power supply, fan, Virtual Chassis
Latency	Varies by model
Jumbo Frames	Supported
VLAN Support	Yes
MAC Address Table Size	Varies by model
QoS	Yes
Energy Efficiency	EEE (802.3az)
Dimensions	Varies by model
Weight	Varies by model
Operating Temperature	0° to 45° C
Storage Temperature	-40° to 70° C
Humidity	5% to 90% non-condensing
MTBF	Varies by model
Warranty	Limited Lifetime