Juniper EX4300 Hardware Guide

DC Power Supply Specifications for EX4300 Switches . . . . . . . . . . . . . . . . . . . . 104
Calculating the EX Series Switch Fiber-Optic Cable Power Budget . . . . . . . . . . . 104
Calculating the EX Series Switch Fiber-Optic Cable Power Margin . . . . . . . . . . . 105
Chapter 8 Transceiver and Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Pluggable Transceivers Supported on EX4300 Switches . . . . . . . . . . . . . . . . . . 109
Pluggable Transceivers Supported on EX Series Switches . . . . . . . . . . . . . . . . . . 133
SFP+ Direct Attach Copper Cables for EX Series Switches . . . . . . . . . . . . . . . . . 134
Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Standards Supported by These Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
QSFP+ Direct Attach Copper Cables for EX Series Switches . . . . . . . . . . . . . . . . 141
Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Management Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Understanding EX Series Switches Fiber-Optic Cable Signal Loss, Attenuation,
and Dispersion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Signal Loss in Multimode and Single-Mode Fiber-Optic Cable . . . . . . . . . . . 147
Attenuation and Dispersion in Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . . . . 147
Chapter 9 Pinout Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Console Port Connector Pinout Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Mini-USB Port Pinout Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
USB Port Specifications for an EX Series Switch . . . . . . . . . . . . . . . . . . . . . . . . . 150
RJ-45 Management Port Connector Pinout Information . . . . . . . . . . . . . . . . . . . 152
RJ-45 Port, QSFP+ Port, SFP+ Port, and SFP Port Connector Pinout
Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
RJ-45 to DB-9 Serial Port Adapter Pinout Information . . . . . . . . . . . . . . . . . . . . . 157
Part 3 Initial Installation and Configuration
Chapter 10 Unpacking the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Unpacking an EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Parts Inventory (Packing List) for an EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . 162
Registering Products—Mandatory for Validating SLAs . . . . . . . . . . . . . . . . . . . . . 163
Chapter 11 Installing the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Installing and Connecting an EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Mounting an EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Mounting an EX4300 Switch on Two Posts of a Rack or Cabinet . . . . . . . . . . . . 167
Mounting an EX4300 Switch on Four Posts of a Rack or Cabinet . . . . . . . . . . . . 169
Mounting an EX4300 Switch in a Recessed Position in a Rack or Cabinet . . . . . . 173
Mounting an EX4300 Switch on a Wall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Installing and Removing EX4300 Switch Hardware Components . . . . . . . . . . . . 176
Chapter 12 Connecting the Switch to Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Connecting Earth Ground to an EX Series Switch . . . . . . . . . . . . . . . . . . . . . . . . . 179
Parts and Tools Required for Connecting an EX Series Switch to Earth
Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Special Instructions to Follow Before Connecting Earth Ground to a
Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
vCopyright © 2017, Juniper Networks, Inc.
Table of Contents

Juniper EX4300 Specifications

General

Model	EX4300
Virtual Chassis	Yes, up to 10 members
Layer 3 Routing	Yes
10GBASE SFP+ Ports	4
Jumbo Frames	9216 bytes
MAC Address Table Size	32, 000
Operating System	Junos OS
Uplink Ports	4 x 10GBASE SFP+
Power Supply	AC or DC options
Operating Temperature	0°C to 45°C (32°F to 113°F)
Input Voltage	100-240V AC
Operating Relative Humidity	5 to 90% RH, non-condensing
Management Options	CLI, Web UI, Junos Space
Redundancy	Yes, power supply and fans
Storage Temperature	-40°F to 158°F (-40°C to 70°C)
Ports	24 or 48