Juniper EX4550 Hardware Guide

Chapter 13 Connecting the Switch to Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Connecting Earth Ground to an EX Series Switch . . . . . . . . . . . . . . . . . . . . . . . . . 157
Parts and Tools Required for Connecting an EX Series Switch to Earth
Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Special Instructions to Follow Before Connecting Earth Ground to a
Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Connecting Earth Ground to an EX Series Switch . . . . . . . . . . . . . . . . . . . . . 162
Connecting AC Power to an EX4550 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Connecting DC Power to an EX4550 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Chapter 14 Connecting the Switch to the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Connecting a Switch to a Network for Out-of-Band Management . . . . . . . . . . . 169
Connecting a Switch to a Management Console . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Connecting an EX4550 Switch to a Management Console Using the Mini-USB
Type-B Console Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Connecting a Fiber-Optic Cable to a Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Chapter 15 Performing Initial Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
EX4550 Default Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Connecting and Configuring an EX Series Switch (CLI Procedure) . . . . . . . . . . . 187
Connecting and Configuring an EX Series Switch (J-Web Procedure) . . . . . . . . . 190
Configuring the LCD Panel on EX Series Switches (CLI Procedure) . . . . . . . . . . . 193
Disabling or Enabling Menus and Menu Options on the LCD Panel . . . . . . . 194
Configuring a Custom Display Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Part 4 Installing, Maintaining, and Replacing Components
Chapter 16 Replacing Cooling System Component . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Installing a Fan Module in an EX4550 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Removing a Fan Module from an EX4550 Switch . . . . . . . . . . . . . . . . . . . . . . . . 200
Chapter 17 Replacing Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Installing an AC Power Supply in an EX4550 Switch . . . . . . . . . . . . . . . . . . . . . . 203
Removing an AC Power Supply from an EX4550 Switch . . . . . . . . . . . . . . . . . . 204
Installing a DC Power Supply in an EX4550 Switch . . . . . . . . . . . . . . . . . . . . . . . 206
Removing a DC Power Supply from an EX4550 Switch . . . . . . . . . . . . . . . . . . . . 207
Chapter 18 Replacing Expansion Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Installing an Expansion Module in an EX4550 Switch . . . . . . . . . . . . . . . . . . . . . 209
Removing an Expansion Module from an EX4550 Switch . . . . . . . . . . . . . . . . . . . 211
Chapter 19 Replacing Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Installing a Transceiver in an EX Series Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Removing a Transceiver from a Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Chapter 20 Maintaining and Replacing Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . . . . . . 221
Connecting a Fiber-Optic Cable to a Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Disconnecting a Fiber-Optic Cable from a Switch . . . . . . . . . . . . . . . . . . . . . . . . 222
Maintaining Fiber-Optic Cables in Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Copyright © 2015, Juniper Networks, Inc.vi
EX4550 Switch Hardware Guide

Juniper EX4550 Specifications

Console Connection Settings

baud rate	9600
data bits	8
stop bits	1