Juniper EX2300 Series Installation instructions

EX2300 Switch Hardware Guide
Published
2022-02-14

Juniper Networks, Inc.
1133 Innovaon Way
Sunnyvale, California 94089
USA
408-745-2000
www.juniper.net
Juniper Networks, the Juniper Networks logo, Juniper, and Junos are registered trademarks of Juniper Networks, Inc.
in the United States and other countries. All other trademarks, service marks, registered marks, or registered service
marks are the property of their respecve owners.
Juniper Networks assumes no responsibility for any inaccuracies in this document. Juniper Networks reserves the right
to change, modify, transfer, or otherwise revise this publicaon without noce.
EX2300 Switch Hardware Guide
Copyright © 2022 Juniper Networks, Inc. All rights reserved.
The informaon in this document is current as of the date on the tle page.
YEAR 2000 NOTICE
Juniper Networks hardware and soware products are Year 2000 compliant. Junos OS has no known me-related
limitaons through the year 2038. However, the NTP applicaon is known to have some diculty in the year 2036.
END USER LICENSE AGREEMENT
The Juniper Networks product that is the subject of this technical documentaon consists of (or is intended for use
with) Juniper Networks soware. Use of such soware is subject to the terms and condions of the End User License
Agreement ("EULA") posted at hps://support.juniper.net/support/eula/. By downloading, installing or using such
soware, you agree to the terms and condions of that EULA.
ii

Table of Contents
About This Guide | ix
1
Overview
EX2300 System Overview | 2
EX2300 Switches Hardware Overview | 2
EX2300 Switch Models | 15
EX2300 Switch Hardware and CLI Terminology Mapping | 18
Chassis Physical Specicaons for EX2300 Switches | 23
EX2300 Chassis | 25
Chassis Status LEDs in EX2300 Switches | 26
Management Port LEDs in EX2300 Switches | 30
RJ-45 Network Port LEDs and Uplink Port LEDs in EX2300 Switches | 34
EX2300 Cooling System | 40
EX2300 Power System | 46
Power Supply in EX2300 Switches | 46
Power Specicaons for EX2300 Switches | 47
AC Power Cord Specicaons for EX2300 Switches | 49
2
Site Planning, Preparaon, and Specicaons
Site Preparaon Checklist for EX2300 Switches | 53
EX2300 Site Guidelines and Requirements | 55
Environmental Requirements and Specicaons for EX Series Switches | 55
General Site Guidelines | 62
Site Electrical Wiring Guidelines | 62
Rack Requirements | 63
Cabinet Requirements | 65
iii

Requirements for Mounng an EX2300 Switch On or Under a Desk or Other Level Surface or
On a Wall | 66
Clearance Requirements for Airow and Hardware Maintenance for EX2300 Switches | 67
EX2300 Network Cable and Transceiver Planning | 75
Pluggable Transceivers Supported on EX2300 Switches | 75
SFP+ Direct Aach Copper Cables for EX Series Switches | 77
Understanding EX Series Switches Fiber-Opc Cable Signal Loss, Aenuaon, and Dispersion | 79
Calculang the Fiber-Opc Cable Power Budget for EX Series Devices | 81
Calculang the Fiber-Opc Cable Power Margin for EX Series Devices | 81
EX2300 Management Cable Specicaons and Pinouts | 83
Management Cable Specicaons | 84
Console Port Connector Pinout Informaon | 84
USB Port Specicaons for an EX Series Switch | 85
Mini-USB Port Pinout Specicaons | 86
RJ-45 Management Port Connector Pinout Informaon | 87
RJ-45 Port, SFP Port, SFP+ Port, QSFP+ Port, and QSFP28 Port Connector Pinout Informaon | 87
SFP+ Uplink Port Connector Pinout Informaon for an EX2300 Switch | 94
RJ-45 Management Port Connector Pinout Informaon | 96
RJ-45 to DB-9 Serial Port Adapter Pinout Informaon | 96
EX2300 Virtual Chassis | 97
Planning EX2300 Virtual Chassis | 98
Understanding EX2300 Virtual Chassis Hardware Conguraon | 98
3
Inial Installaon and Conguraon
Unpacking and Mounng the EX2300 Switch | 101
Unpacking an EX2300 Switch | 101
Parts Inventory (Packing List) for an EX2300 Switch | 102
Register Products—Mandatory to Validate SLAs | 103
iv

Installing and Connecng an EX2300 Switch | 104
Mounng an EX2300 Switch | 105
Mounng an EX2300 Switch on a Desk or Other Level Surface | 106
Mounng an EX2300-C Switch Under a Desk or Other Level Surface by Using Screws | 108
Mounng an EX2300 Switch on Two Posts of a Rack or Cabinet | 113
Mounng an EX2300 Switch on Four Posts of a Rack or Cabinet | 116
Mounng an EX2300 Switch on a Wall | 119
Mounng an EX2300-C Switch on a Wall | 119
Mounng an EX2300 Switch Except the EX2300-C Switch and the EX2300-24MP and
EX2300-48MP Models on a Wall | 124
Mounng an EX2300-C Switch on or Under a Surface Made of Ferrous Material | 127
Mounng an EX2300 Switch in a Recessed Posion in a Rack or Cabinet | 132
Connecng the EX2300 to Power | 132
Connect Earth Ground to an EX Series Switch | 132
Connecng AC Power to an EX2300 Switch | 141
Connecng DC Power to an EX2300 Switch | 144
Connecng the EX2300 to External Devices | 147
Connect a Device to a Network for Out-of-Band Management | 147
Connect a Device to a Management Console Using an RJ-45 Connector | 148
Connect an EX Series Switch to a Management Console Using the Mini-USB Type-B Console
Port | 149
Connecng the EX2300 to the Network | 151
Install a Transceiver | 151
Connect a Fiber-Opc Cable | 154
Conguring Junos OS on the EX2300 | 155
EX2300 Switch Default Conguraon | 156
Connecng and Conguring an EX Series Switch (CLI Procedure) | 171
Connecng and Conguring an EX Series Switch (J-Web Procedure) | 175
v

Reverng to the Default Factory Conguraon for the EX Series Switch | 179
Reverng to the EX Series Switch Factory-Default Conguraon Using the request system
zeroize Command | 180
Reverng to the EX Series Switch Factory-Default Conguraon Using the load factory-
default Command | 180
Reverng to the Factory-Default Conguraon Using the EX Series Switch LCD Panel | 182
Reverng to the Factory-Default Conguraon Using the Factory Reset/Mode buon on
EX2300, EX3400, and EX4300-48MP Switches | 182
Dashboard for EX Series Switches | 184
4
Maintaining Components
Maintain Transceivers | 217
Remove a Transceiver | 217
Remove a QSFP28 Transceiver | 219
Install a Transceiver | 221
Install a QSFP28 Transceiver | 224
Maintain Fiber-Opc Cables | 226
Connect a Fiber-Opc Cable | 226
Disconnect a Fiber-Opc Cable | 227
How to Handle Fiber-Opc Cables | 228
5
Troubleshoong Hardware
Troubleshoong EX2300 Components | 231
Understand Alarm Types and Severity Levels on EX Series Switches | 231
Chassis Component Alarm Condions on EX2300 Switches | 233
Check Acve Alarms with the J-Web Interface | 235
Monitor System Log Messages | 236
Troubleshoong PoE Voltage Injecon Failure in EX2300, EX3400, or EX4300 Switch Models
with PoE Capability | 243
Troubleshoong Storage Issues While Upgrading Junos OS in EX2300 and EX3400 Switches | 244
Troubleshoot Temperature Alarms in EX Series Switches | 246
vi

6
Contacng Customer Support and Returning the Chassis or Components
Returning an EX2300 Switch or Component for Repair or Replacement | 254
Returning an EX2300 Switch or Component for Repair or Replacement | 254
Locang the Serial Number on an EX2300 Switch or Component | 255
Lisng the Switch and Components Details with the CLI | 255
Locang the Chassis Serial Number ID Label on an EX2300 Switch | 257
Contact Customer Support to Obtain Return Material Authorizaon | 257
Packing an EX2300 Switch or Component for Shipping | 258
Packing a Switch for Shipping | 259
Packing Switch Components for Shipping | 259
7
Safety and Compliance Informaon
General Safety Guidelines and Warnings | 263
Denions of Safety Warning Levels | 264
Qualied Personnel Warning | 266
Warning Statement for Norway and Sweden | 266
Fire Safety Requirements | 267
Installaon Instrucons Warning | 268
Chassis and Component Liing Guidelines | 269
Restricted Access Warning | 269
Ramp Warning | 271
Rack-Mounng and Cabinet-Mounng Warnings | 271
Grounded Equipment Warning | 275
Laser and LED Safety Guidelines and Warnings | 276
Radiaon from Open Port Apertures Warning | 279
Maintenance and Operaonal Safety Guidelines and Warnings | 280
General Electrical Safety Guidelines and Warnings | 286
vii

Acon to Take Aer an Electrical Accident | 287
Prevenon of Electrostac Discharge Damage | 288
AC Power Electrical Safety Guidelines | 289
AC Power Disconnecon Warning | 290
DC Power Electrical Safety Guidelines | 291
DC Power Disconnecon Warning | 292
DC Power Grounding Requirements and Warning | 294
DC Power Wiring Sequence Warning | 294
DC Power Wiring Terminaons Warning | 296
Mulple Power Supplies Disconnecon Warning | 297
TN Power Warning | 298
Agency Approvals for EX Series Switches | 299
Compliance Statements for EMC Requirements for EX Series Switches | 300
Compliance Statements for Acousc Noise for EX Series Switches | 305
viii

About This Guide
Use this guide to install hardware and perform inial soware conguraon, roune maintenance, and
troubleshoong for the EX2300 switch. Aer compleng the installaon and basic conguraon
procedures covered in this guide, refer to the Junos OS documentaon for informaon about further
soware conguraon.
ix

1
CHAPTER
Overview
EX2300 System Overview | 2
EX2300 Chassis | 25
EX2300 Cooling System | 40
EX2300 Power System | 46

EX2300 System Overview
IN THIS SECTION
EX2300 Switches Hardware Overview | 2
EX2300 Switch Models | 15
EX2300 Switch Hardware and CLI Terminology Mapping | 18
Chassis Physical Specicaons for EX2300 Switches | 23
EX2300 Switches Hardware Overview
IN THIS SECTION
Benets of the EX2300 Switch | 3
EX2300 Switches First View | 3
Uplink Ports | 3
Console Ports | 4
Cable Guard | 4
Security Slot | 4
Power over Ethernet (PoE) Ports | 4
Front Panel of an EX2300 Switch | 5
Rear Panel of an EX2300 Switch | 10
Juniper Networks EX Series Ethernet Switches provide scalable connecvity for the enterprise market,
including branch oces, campus locaons, and data centers. The Juniper Networks EX2300 Ethernet
Switches run the Juniper Networks Junos operang system (Junos OS), which provides Layer 2 and
Layer 3 switching, roung, and security services.
EX2300 switches provide connecvity for low-density environments.
2

Benets of the EX2300 Switch
Economical—EX2300 switches oer an economical, entry-level, standalone soluon for access-layer
deployments in branch and remote oces, as well as enterprise campus networks. 1 Gbps and 2.5 Gbps
access port opons provide high speed opons, especially when connecng to 802.11ac Wave 2 access
points.
High exibility and class leading features—EX2300 switches provide the highest levels of exibility and
features in its class to support data, voice, and video environments, delivering a reliable plaorm for
unifying enterprise communicaons.
Support for Juniper Networks Junos Fusion Enterprise—EX2300 switches can act as a satellite device to
support a Juniper Networks Junos Fusion Enterprise deployment, which can combine several wiring
closets into one logical management plaorm. In smaller networks, you can connect up to four EX2300
switches in a Virtual Chassis conguraon, allowing them to be managed as a single switch.
EX2300 Switches First View
EX2300 switches are available in models with 12 or 24, or 48 built-in network ports that support RJ-45
cable connectors. The compact, fanless EX2300-C switches have 12 RJ-45 network ports.
EX2300 switches provide:
• Up to six 10-Gigabit Ethernet uplink ports that support small form-factor pluggable plus (SFP+)
transceivers and small form-factor pluggable (SFP) transceivers.
• 12 (in EX2300-C switches), 16, 24, 32, or 48 built-in Gigabit Ethernet RJ-45 network ports with
10/100/1000 BASE-T connectors.
• Eight or 16 built-in Gigabit Ethernet RJ-45 network ports with 100/1000/2500 BASE-T connectors.
•
Virtual Chassis capability—You can connect up to four EX2300 switches (including EX2300-C
switches) to form one unit that you manage as a single chassis, called a Virtual Chassis .
• Power over Ethernet (PoE) or Power over Ethernet Plus (PoE+) on all RJ-45 network ports (in PoE-
capable models).
Uplink Ports
EX2300-C switches have two 10-Gigabit Ethernet uplink ports. EX2300 switches except the EX2300-C
switch model and the EX2300-48MP switch model have four 10-Gigabit Ethernet uplink ports. The
EX2300-48MP switch model has six 10-Gigabit Ethernet uplink ports. These uplink ports support SFP
and SFP+ transceivers. You can use these uplink ports as network ports or congure these ports as
Virtual Chassis ports (VCPs) and use them to connect up to four switches by using SFP+ transceivers to
form a Virtual Chassis.
3

NOTE: You cannot form a Virtual Chassis by using SFP transceivers.
For forming a Virtual Chassis, you must explicitly congure an uplink port on each of the switches to be
connected as a VCP. See Seng an Uplink Port on an EX Series or QFX Series Switch as a Virtual
Chassis Port.
For informaon about the supported opcal and copper interfaces, see "Pluggable Transceivers
Supported on EX2300 Switches" on page 75.
Console Ports
EX2300 switches except the EX2300-24MP and EX2300-48MP switch models have two console ports
—an RJ-45 console port and a Mini-USB Type-B console port. EX2300-24MP and EX2300-48MP switch
models have an RJ-45 console port. The RJ-45 port accepts a cable that has an RJ-45 connector and the
Mini-USB Type-B port accepts a Mini-B plug (5-pin) connector to connect the switch to a console
management device.
Cable Guard
On an EX2300-C switch, you can install a cable guard to secure the cables connected to the switch. The
cable guard has slots in the front of it through which you can pass all the cables to prevent them from
being accidently unplugged or removed aer they are connected. See "Mounng an EX2300 Switch on a
Desk or Other Level Surface" on page 106, "Mounng an EX2300-C Switch Under a Desk or Other Level
Surface by Using Screws" on page 108, and "Mounng an EX2300-C Switch on or Under a Surface
Made of Ferrous Material" on page 127.
Security Slot
An EX2300-C switch has a security slot on the right panel of the chassis. You can use the security slot to
lock and secure the chassis in the installaon site with a standard cable lock. See "Mounng an EX2300
Switch on a Desk or Other Level Surface" on page 106, "Mounng an EX2300-C Switch Under a Desk or
Other Level Surface by Using Screws" on page 108, and "Mounng an EX2300-C Switch on or Under a
Surface Made of Ferrous Material" on page 127.
Power over Ethernet (PoE) Ports
EX2300 switches are available with or without PoE/PoE+ capability. Models that support PoE/PoE+
provide that support on all RJ-45 network ports. PoE ports provide electrical current to devices—such as
IP phones, wireless access points, and security cameras—through network cables, thus eliminang the
need for separate power cords for those devices. Uplink ports do not support PoE.
4

NOTE: IEEE 802.3at class 4 powered devices require category 5 or higher Ethernet cables.
The remainder of this topic uses the term PoE to refer to both PoE and PoE+ unless there is a need to
disnguish between the two.
Front Panel of an EX2300 Switch
The front panel of an EX2300-C switch consists of the following components:
• RJ-45 network ports—depending on the switch model, either of:
• 12 10/100/1000 BASE-T Gigabit Ethernet ports with PoE/PoE+ capability in EX2300-C-12P
• 12 10/100/1000 BASE-T Gigabit Ethernet ports without PoE capability in EX2300-C-12T
• One USB port
• One management Ethernet port
• Three chassis status LEDs
• Four port status mode LEDs in models with PoE capability and three port status mode LEDs in
models without PoE capability
• One Factory Reset/Mode buon
• One mini-USB console port
• One RJ-45 console port
• Two built-in 10-Gigabit Ethernet uplink ports. You can use the uplink ports to forward network trac
or congure them as VCPs to interconnect EX2300 switches into a Virtual Chassis.
• One electrostac discharge (ESD) point
5

Figure 1 on page 6 shows the front panel of an EX2300-C switch with 12 Gigabit Ethernet ports with
PoE capability and Figure 2 on page 6 shows the front panel of an EX2300-C switch with 12 Gigabit
Ethernet ports without PoE capability.
Figure 1: Front Panel of an EX2300-C Switch with 12 Gigabit Ethernet Ports with PoE Capability
1—RJ-45 network ports 6—Factory Reset/Mode buon
2—USB port 7—Mini-USB console port
3—Management Ethernet port 8—RJ-45 console port
4—Chassis status LEDs 9—10-Gigabit Ethernet uplink ports
5—Port status mode LEDs. The LED labeled PoE
is present only on models with PoE
capability.
10—ESD point
Figure 2: Front Panel of an EX2300-C Switch with 12 Gigabit Ethernet Ports without PoE Capability
1—RJ-45 network ports 6—Factory Reset/Mode buon
2—USB port 7—Mini-USB console port
3—Management Ethernet port 8—RJ-45 console port
4—Chassis status LEDs 9—10-Gigabit Ethernet uplink ports
5—Port status mode LEDs 10—ESD point
6

The front panel of EX2300 switches except the EX2300-C, EX2300-24MP, and EX2300-48MP switch
models consists of the following components:
• RJ-45 network ports—depending on the switch model, either of:
• 24 10/100/1000 BASE-T Gigabit Ethernet ports without PoE capability in the EX2300-24T and
EX2300-24T-DC models
• 48 10/100/1000 BASE-T Gigabit Ethernet ports without PoE capability in the EX2300-48T model
• 24 10/100/1000 BASE-T Gigabit Ethernet ports with PoE/PoE+ capability in the EX2300-24P
model
• 48 10/100/1000 BASE-T Gigabit Ethernet ports with PoE/PoE+ capability in the EX2300-48P
model
• Three chassis status LEDs
• Four port status mode LEDs in models with PoE capability and three port status mode LEDs in
models without PoE capability
• One Factory Reset/Mode buon
• One mini-USB console port
• Four built-in 10-Gigabit Ethernet uplink ports. You can use these ports to forward network trac or
congure them into VCPs to interconnect EX2300 switches into a Virtual Chassis.
Figure 3 on page 7 shows the front panel of an EX2300 switch with 24 Gigabit Ethernet ports with
PoE capability except the EX2300-24MP model and Figure 4 on page 8 shows the front panel of an
EX2300 switch with 48 Gigabit Ethernet ports except the EX2300-48MP model.
Figure 3: Front Panel of an EX2300 Switch with 24 Gigabit Ethernet Ports with PoE Capability Except
the EX2300-24MP Model
1—RJ-45 network ports 4—Factory Reset/Mode buon
2—Chassis status LEDs 5—Mini-USB console port
7

3—Port status mode LEDs. The LED labeled PoE
is present only on models with PoE
capability.
6—10-Gigabit Ethernet uplink ports
Figure 4: Front Panel of an EX2300 Switch with 48 Gigabit Ethernet Ports with PoE Capability Except
the EX2300-48MP Model
1—RJ-45 network ports 4—Factory Reset/Mode buon
2—Chassis status LEDs 5—Mini-USB console port
3—Port status mode LEDs. The LED labeled PoE
is present only on models with PoE
capability.
6—10-Gigabit Ethernet uplink ports
The front panel of EX2300-24MP switch models consists of the following components:
• QR code
• System LEDs
• One USB port
• One management port
• Eight 100/1000/2500 BASE-T Gigabit Ethernet ports with PoE/PoE+ capability
• 16 10/100/1000 BASE-T Gigabit Ethernet ports with PoE/PoE+ capability
• Four built-in 10-Gigabit Ethernet uplink ports. You can use these ports to forward network trac or
congure them into VCPs to interconnect EX2300 switches into a Virtual Chassis.
• One RJ-45 console port
The front panel of EX2300-48MP switch models consists of the following components:
• QR code
• System LEDs
8

• One USB port
• One management port
• One RJ-45 console port
• 16 100/1000/2500 BASE-T Gigabit Ethernet ports with PoE/PoE+ capability
• 32 10/100/1000 BASE-T Gigabit Ethernet ports with PoE/PoE+ capability
• Six built-in 10-Gigabit Ethernet uplink ports. You can use these ports to forward network trac or
congure them into VCPs to interconnect EX2300 switches into a Virtual Chassis.
Figure 5 on page 9 shows the front panel of an EX2300-24MP switch and Figure 6 on page 9
shows the front panel of an EX2300-48MP switch.
Figure 5: Front Panel of an EX2300-24MP Switch
1—QR code 5—10/100/1000 BASE-T Gigabit Ethernet ports
2—System LEDs 6—10-Gigabit Ethernet uplink ports
3—Management port 7—Console port
4—100/1000/2500 BASE-T Gigabit Ethernet
ports
8—USB port
Figure 6: Front Panel of an EX2300-48MP Switch
1—QR code 5—10-Gigabit Ethernet uplink ports
9

2—System LEDs 6—Management port
3—10/100/1000 BASE-T Gigabit Ethernet ports
with PoE/PoE+ capability
7—Console port
4—100/1000/2500 BASE-T Gigabit Ethernet
ports
8—USB port
Rear Panel of an EX2300 Switch
The rear panel of an EX2300-C switch consists of the following components:
• Serial number ID label
• CLEI code label
• One protecve earthing terminal
• Heatsink
• One AC power cord inlet
Figure 7 on page 10 shows the rear panel of an EX2300-C switch with 12 Gigabit Ethernet ports with
PoE capability and Figure 8 on page 11 shows the rear panel of an EX2300-C switch with 12 Gigabit
Ethernet ports without PoE capability.
EX2300-C switches being fanless models have no exhaust openings. EX2300 switches have vents on
the top of the chassis. The PoE models have a heatsink installed in the rear panel to dissipate heat, while
non-PoE models have no heatsink.
Figure 7: Rear Panel of an EX2300-C Switch with 12 Gigabit Ethernet Ports with PoE Capability
1—CLEI code label 4—Heatsink—only in PoE models
2—Serial number ID label 5—AC power cord inlet
10

3—Protecve earthing terminal
Figure 8: Rear Panel of an EX2300-C Switch with 12 Gigabit Ethernet Ports without PoE Capability
1—CLEI code label 3—Protecve earthing terminal
2—Serial number ID label 4—AC power cord inlet
The rear panel of the EX2300 switch except the EX2300-C, EX2300-24MP, and EX2300-48MP switch
models consists of the following components:
• One management Ethernet port that supports an RJ-45 connector
• One console port that supports an RJ-45 connector
• One protecve earthing terminal
• One ESD point
• Air exhaust openings
• Serial number ID label
• CLEI code label
• One AC power cord inlet or DC power terminals
• One USB port
Figure 9 on page 12 shows the rear panel of an AC-powered EX2300 switch with 24 Gigabit Ethernet
ports with PoE capability except the EX2300-24MP model and Figure 10 on page 12 shows the rear
panel of an EX2300 switch with 48 Gigabit Ethernet ports with PoE capability except the EX2300-48MP
model. Figure 11 on page 13 shows the rear panel of an AC-powered EX2300 switch with 24 Gigabit
Ethernet ports without PoE capability and Figure 12 on page 13 shows the rear panel of an EX2300
switch with 48 Gigabit Ethernet ports without PoE capability. Figure 13 on page 14 shows the rear
panel of a DC-powered EX2300 switch with 24 Gigabit Ethernet ports.
11