Juniper EX4600 Installation instructions

EX4600 Switch Hardware Guide
Published
2022-11-30

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.
EX4600 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
EX4600 System Overview | 2
EX4600 Switch Hardware Overview | 2
EX4600 Switch Models | 5
Understanding Redundancy of EX4600 Switch Components and Funconality | 6
EX4600 Chassis | 7
Chassis Physical Specicaons for an EX4600 Switch | 7
Field-Replaceable Units in an EX4600 Switch | 8
Port Panel of an EX4600 Switch | 9
Access Port and Uplink Port LEDs on an EX4600 Switch | 10
Management Panel of an EX4600 Switch | 13
Chassis Status LEDs on an EX4600 Switch | 16
Expansion Modules for the EX4600 | 18
EX4600-EM-8F | 19
QFX-EM-4Q | 20
EX4600 Cooling System | 21
Cooling System and Airow in an EX4600 Switch | 21
Fan Module LED on an EX4600 Switch | 27
EX4600 Power System | 28
AC Power Supply in an EX4600 Switch | 28
AC Power Supply LEDs on an EX4600 Switch | 31
AC Power Specicaons for an EX4600 Switch | 32
AC Power Cord Specicaons for an EX4600 Switch | 32
iii

DC Power Supply in an EX4600 Switch | 34
DC Power Supply LEDs in EX4600 Switches | 37
DC Power Specicaons for an EX4600 Switch | 38
Grounding Cable and Lug Specicaons for an EX4600 Switch | 39
2
Site Planning, Preparaon, and Specicaons
Site Preparaon Checklist for an EX4600 Switch | 42
EX4600 Site Guidelines and Requirements | 43
Environmental Requirements and Specicaons for EX Series Switches | 44
General Site Guidelines | 50
Site Electrical Wiring Guidelines | 51
Rack Requirements for an EX4600 Switch | 52
Cabinet Requirements for an EX4600 Switch | 54
Clearance Requirements for Airow and Hardware Maintenance for an EX4600 Switch | 56
EX4600 Network Cable and Transceiver Planning | 57
Determining Interface Support for an EX4600 Switch | 57
Cable Specicaons for QSFP+ Transceivers on EX4600 Series Switches | 58
Network Cable Specicaons for EX4600 Switches | 60
Overview of EX Series Switches: Fiber-Opc Cable Signal Loss, Aenuaon, and Dispersion | 61
Calculate the Fiber-Opc Cable Power Budget for EX Series Devices | 63
Calculang the Fiber-Opc Cable Power Margin for EX Series Devices | 64
EX4600 Management Cable Specicaons and Pinouts | 66
Cable Specicaons for Console and Management Connecons for the EX4600 | 66
USB Port Specicaons for an EX Series Switch | 67
Console Port Connector Pinout Informaon | 68
RJ-45 Management Port Connector Pinout Informaon | 69
3
Inial Installaon and Conguraon
iv

Unpacking and Mounng an EX4600 Switch | 71
Installing and Connecng an EX4600 Switch | 71
Unpacking an EX4600 Switch | 72
Mounng an EX4600 Switch in a Rack or Cabinet | 73
Before You Begin Rack Installaon | 74
Four Post Procedure | 75
Connecng the EX4600 to Power | 77
Connecng Earth Ground to an EX4600 Switch | 77
Connecng AC Power to an EX4600 Switch | 79
Connecng DC Power to an EX4600 Switch | 81
Connecng the EX4600 to Management Devices | 87
Connect a Device to a Network for Out-of-Band Management | 87
Connect a Device to a Management Console Using an RJ-45 Connector | 88
Connecng EX4600 Switches in a Virtual Chassis | 89
Conguring Junos OS on the EX4600 | 91
4
Maintaining Components
Maintaining the EX4600 Switch Cooling System | 95
Removing a Fan Module from an EX4600 Switch | 95
Installing a Fan Module in an EX4600 Switch | 96
Maintaining the EX4600 Switch Power System | 98
Removing a Power Supply from an EX4600 Switch | 98
Installing a Power Supply in an EX4600 Switch | 100
Maintaining the Expansion Module in an EX4600 Switch | 102
Removing an Expansion Module from an EX4600 Switch | 102
Installing an Expansion Module in an EX4600 Switch | 104
Maintain Transceivers | 106
Remove a Transceiver | 106
v

Install a Transceiver | 108
Maintain Fiber-Opc Cables | 111
Connect a Fiber-Opc Cable | 112
Disconnect a Fiber-Opc Cable | 113
How to Handle Fiber-Opc Cables | 113
Removing the EX4600 Switch | 114
Installing and Removing EX4600 Switch Hardware Components | 115
Powering O an EX4600 Switch | 115
Removing an EX4600 Switch from a Rack or Cabinet | 118
5
Troubleshoong Hardware
Troubleshoong the EX4600 Components | 121
Understand Alarm Types and Severity Levels on EX Series Switches | 121
Interface Alarm Messages | 123
Creang an Emergency Boot Device | 123
Performing a Recovery Installaon | 125
6
Contacng Customer Support and Returning the Chassis or Components
Returning an EX4600 Chassis or Components | 128
Returning an EX4600 Switch or Component for Repair or Replacement | 128
Locang the Serial Number on an EX4600 Switch or Component | 129
Lisng the Chassis and Component Details Using the CLI | 129
Locang the Chassis Serial Number ID Label on an EX4600 Switch | 131
Locang the Serial Number ID Labels on FRU Components | 131
Contact Customer Support to Obtain a Return Material Authorizaon | 132
Packing an EX4600 Switch or Component for Shipping | 133
Packing an EX4600 Switch for Shipping | 133
Packing EX4600 Switch Components for Shipping | 134
7
Safety and Compliance Informaon
General Safety Guidelines and Warnings | 137
vi

Denions of Safety Warning Levels | 138
Qualied Personnel Warning | 140
Warning Statement for Norway and Sweden | 140
Fire Safety Requirements | 141
Installaon Instrucons Warning | 142
Chassis and Component Liing Guidelines | 143
Restricted Access Warning | 143
Ramp Warning | 145
Rack-Mounng and Cabinet-Mounng Warnings | 145
Grounded Equipment Warning | 149
Laser and LED Safety Guidelines and Warnings | 150
Radiaon from Open Port Apertures Warning | 153
Maintenance and Operaonal Safety Guidelines and Warnings | 154
General Electrical Safety Guidelines and Warnings | 160
Acon to Take Aer an Electrical Accident | 161
Prevenon of Electrostac Discharge Damage | 162
AC Power Electrical Safety Guidelines | 163
AC Power Disconnecon Warning | 164
DC Power Electrical Safety Guidelines | 165
DC Power Disconnecon Warning | 166
DC Power Grounding Requirements and Warning | 168
DC Power Wiring Sequence Warning | 168
DC Power Wiring Terminaons Warning | 170
Mulple Power Supplies Disconnecon Warning | 171
TN Power Warning | 172
vii

Agency Approvals for EX Series Switches | 173
Compliance Statements for EMC Requirements for EX Series Switches | 174
Compliance Statements for Acousc Noise for EX Series Switches | 178
Statements of Volality for Juniper Network Devices | 178
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 EX4600 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.
RELATED DOCUMENTATION
EX4600 Quick Start
ix

1
CHAPTER
Overview
EX4600 System Overview | 2
EX4600 Chassis | 7
EX4600 Cooling System | 21
EX4600 Power System | 28

EX4600 System Overview
IN THIS SECTION
EX4600 Switch Hardware Overview | 2
EX4600 Switch Models | 5
Understanding Redundancy of EX4600 Switch Components and Funconality | 6
EX4600 Switch Hardware Overview
IN THIS SECTION
Benets of the EX4600 Switch | 3
EX4600 Hardware | 3
System Soware | 5
The Juniper Networks EX4600 Ethernet switch is a highly versale, second generaon soluon for
campus environments. The EX4600 can be deployed in these environments:
• Campus distribuon
• Small campus core
• Top-of-rack in small, low -density data centers
• Data center distribuon in small, low -density data centers
In addion to operang as a standalone switch, the EX4600 switch can act as a member switch in a non-
mixed Virtual Chassis , a Virtual Chassis composed enrely of EX4600 switches, as well as parcipate as
member switches in a mixed Virtual Chassis with EX4300 switches. The switch oers a exible
conguraon of high-performance 10-gigabit and 40-gigabit ports to add higher port densies,
addional scalability, and improved latency to the EX Series of switches.
2

Benets of the EX4600 Switch
Compact soluon—The EX4600 switch supports up to 72 10-Gigabit Ethernet ports in a 1 rack unit (1 U)
chassis.
Intelligent buer management—EX4600 switches have a total of 12 MB shared buers. While 25
percent of the total buer space is dedicated, the rest is shared among all ports and is user congurable.
The intelligent buer mechanism in the EX4600 eecvely absorbs trac bursts while providing
determinisc performance, signicantly increasing performance over stac allocaon.
Energy eciency—The 10-Gigabit Ethernet ports consume less than ve was, thereby oering a low
power soluon for top-of-rack, end-of-row, and distribuon deployments.
EX4600 Hardware
The EX4600 switch is a compact 1 U model that provides wire-speed packet performance, very low
latency, and a rich set of Layer 2 and Layer 3 features. In addion to a high-throughput Packet
Forwarding Engine, the performance of the control plane running on the EX4600 model is enhanced by
the 1.5-GHz dual-core Intel CPU with 32 GB of solid-state drive (SSD) storage.
The port panel of the EX4600 features 24 xed small form-factor pluggable (SFP) or SFP+ access ports
and 4 xed quad SFP+ (QSFP+) high-speed uplinks.
Figure 1: EX4600 Port Panel with Expansion Bays
In addion, the switch has two module bays where you can install oponal expansion modules. The
EX4600 switch supports two expansion modules to increase port density:
3

• QFX-EM-4Q–Adds four addional QSFP+ ports to the chassis. When fully populated with QFX-
EM-4Q expansion modules, the EX4600 is equivalent to one with 72 interfaces (24 + 16 + 16 + 16).
See Figure 2 on page 4.
Figure 2: QFX-EM-4Q Expansion Module
• EX4600-EM-8F–Adds a total of eight addional SFP+ ports to the chassis. When fully populated
with EX4600-EM-8F expansion modules, the EX4600 is equivalent to one with 56 interfaces (24 +
16 + 8 + 8). See Figure 3 on page 4.
Figure 3: EX4600-EM-8F Expansion Module
The EX4600 switch can be used as:
• A standalone switch.
• A primary, backup, or linecard member in a Virtual Chassis with EX4600 switches or EX4300
switches. When in a mixed Virtual Chassis consisng of EX4600 switches and EX4300 switches, the
EX4600 switches can be the primary, backup, or in the linecard role, while the EX4300 switches
must be in the linecard role. An EX4600 Virtual Chassis enables you to interconnect up to 10
switches into one logical device and manage the device as a single chassis. An EX4600 Virtual
Chassis is cabled in a ring topology.
4

In a mixed Virtual Chassis of EX4600 and EX4300 switches, the Junos OS release dictates whether
the EX4600 is best used in the primary role. For Junos OS releases between 13.2X50-D10 and
14.1X53-D25, use the use the EX4300 as a primary and backup RE in the Virtual Chassis. For Junos
OS Release 14.1X53-D25 and later, the EX4600 is fully supported as the primary in a mixed Virtual
Chassis of EX4600 and EX4300.
System Soware
EX Series switches run the Junos operang system (OS), which provides Layer 2 and Layer 3 switching,
roung, and security services. An EX4600 switch ships with Junos OS installed on it. The same Junos OS
code base that runs on EX4600 switches also runs on all Juniper Networks QFX Series devices, M
Series, MX Series, and T Series routers.
You manage the switch by using the Junos OS CL), which is accessible through the console and out-of-
band management ports on the switch.
All models of the EX4600 run on Junos OS Release 13.2X51-D25 or later.
EX4600 Switch Models
The EX4600 switches have a base conguraon of 24 small form-factor pluggable plus (SFP+) ports and
4 quad small-form-factor pluggable (QSFP+) ports. You can increase the number of ports by using
expansion modules. All EX4600 switches, except the EX4600-40F-S switch, ship with two power
supplies and ve fans installed by default. Expansion modules are oponal components that must be
separately ordered.
Table 1 on page 5 lists the EX4600 switch conguraons.
Table 1: EX4600 Switches
Product Number Ports Number of
Expansion
Modules
Supported
Power Supply Airow
EX4600-40F-AFI 24 SFP+ and 4 QSFP+ 2 AC Air In (FRU-to-
port)
EX4600-40F-AFO 24 SFP+ and 4 QSFP+ 2 AC Air Out (port-to-
FRU)
5

Table 1: EX4600 Switches (Connued)
Product Number Ports Number of
Expansion
Modules
Supported
Power Supply Airow
EX4600-40F-DC-AFI 24 SFP+ and 4 QSFP+ 2 DC Air In (FRU-to-
port)
EX4600-40F-DC-AFO 24 SFP+ and 4 QSFP+ 2 DC Air Out (port-to-
FRU)
EX4600-40F-S 24 SFP+ and 4 QSFP+ 2 Order PSUs
separately
Fan modules are
not shipped by
default.
Order fan
modules
separately
CAUTION: Do not mix:
• AC and DC power supplies in the same chassis.
• Power supplies with dierent airow labels (AFI) and (AFO) in the same chassis.
• Fan modules with dierent airow labels (AIR INI) and (AIR OUT) in the same
chassis.
• Power supplies and fan modules with dierent airow labels (AIR INI) and AIR OUT)
or AFI and AFO in the same chassis.
Understanding Redundancy of EX4600 Switch Components and
Funconality
The following hardware components provide redundancy on an EX4600 switch:
• Power supplies—The EX4600 switch can operate with one power supply. However, all EX4600
switches, except the EX4600-40F-S switch, ship with two power supplies preinstalled for
6

redundancy. Each power supply provides power to all components in the switch. Installing two power
provides full power redundancy to the switch. If one power supply fails or is removed, the second
power supply balances the electrical load without interrupon.
• Cooling system—All EX4600 switches, except the EX4600-40F-S ship with ve fan modules installed.
If a fan module fails and leads to the overheang of the chassis, alarms occur and the switch might
shut down.
EX4600 Chassis
IN THIS SECTION
Chassis Physical Specicaons for an EX4600 Switch | 7
Field-Replaceable Units in an EX4600 Switch | 8
Port Panel of an EX4600 Switch | 9
Access Port and Uplink Port LEDs on an EX4600 Switch | 10
Management Panel of an EX4600 Switch | 13
Chassis Status LEDs on an EX4600 Switch | 16
Expansion Modules for the EX4600 | 18
Chassis Physical Specicaons for an EX4600 Switch
The EX4600 switch chassis is a rigid sheet-metal structure that houses the hardware components. Table
2 on page 7 summarizes the physical specicaons of the EX4600 chassis.
Table 2: Physical Specicaons for the EX4600 Switch Chassis
Product Number Height Width Depth Weight
EX4600 1.72 in. (4.3 cm) 17.36 in.
(44.1 cm)
20.48 in.
(4.37 cm)
With power supplies and fan
modules installed: 21.7lbs ( 9.84
kg)
7

Field-Replaceable Units in an EX4600 Switch
Field-replaceable units (FRUs) are components that you can replace at your site. The EX4600 switch
FRUs are hot-insertable and hot-removable: you can remove and replace one of them without powering
o the switch or disrupng the switching funcon. FRU types are:
• Power supplies
• Fan modules
•Opcal transceivers
• Expansion modules
CAUTION: Replace a failed power supply with a blank panel or a new power supply
within one minute of removal to prevent chassis overheang. The switch connues to
operate with only one power supply running. Replace a failed fan module with a new
fan module within one minute of removal to prevent chassis overheang. Do not
operate the switch for more than one minute aer a fan module or power supply fails.
Table 3 on page 8 lists the FRUs for the EX4600 switch and acons to take before removing them.
Table 3: FRUs in a EX4600 Switch
FRU Required Acon
Power supplies None, if two power supplies are installed as recommended. If only one
power is installed, you must power down the switch. See "Removing a
Power Supply from an EX4600 Switch" on page 98.
Fan modules None. See "Removing a Fan Module from an EX4600 Switch" on page
95 for details.
Opcal transceivers None. We recommend that you disable the interface using the set
interfaces interface-name disable command before you remove the
transceiver. See Disconnect a Fiber-Opc Cable .
Expansion modules None. See "Removing an Expansion Module from an EX4600 Switch"
on page 102.
8

NOTE: If you have a Juniper Care service contract, register any addion, change, or upgrade of
hardware components at hps://www.juniper.net/customers/support/tools/updateinstallbase/ .
Failure to do so can result in signicant delays if you need replacement parts. This note does not
apply if you replace exisng components with the same type of component.
SEE ALSO
Installing and Removing EX4600 Switch Hardware Components | 115
Port Panel of an EX4600 Switch
The xed poron of the port panel of the EX4600-40F switch supports up to a maximum of 40 logical
10 GbE ports. Twenty-four physical ports (0 through 23) support 10 Gbps small form-factor pluggable
plus (SFP+) transceivers. These ports can be congured as access ports. See The Hardware Compability
Tool for a list of supported transceivers. All 24 of these ports can be used for SFP+ transceivers or SFP+
direct aach copper (DAC) cables. You can use 1-Gigabit Ethernet SFP+ transceivers, 10-
Gigabit Ethernet SFP+ transceivers, and SFP+ direct aach copper cables in any access port.
The remaining 16 logical ports are available for four 40 GbE ports (24 through 27) that support up to
four quad small-form factor pluggable plus (QSFP+) transceivers. Each QSFP+ port can operate either as
a single 40 Gbps port or as a set of 4 independent 10 Gbps ports using QSFP+ breakout cables. The 40
GbE ports can be congured as either access ports or as uplinks. .
CAUTION: When you use the latest OEM part number FCLF8521P2BTL (printed on
the transceiver label), you can install 1GbE transceivers (such as QFX-SFP-1GE-T) in any
port with no restricons. The same applies for devices that support 10GbE copper
transceivers. However, if you are using the older OEM part number SP7041-M1-JN (not
shipped in last 3+ years) instead, do not install 1GbE copper transceivers (such as QFX-
SFP-1GE-T) directly above or below another 1GbE copper transceiver. Use only the top
row or boom row to avoid damage to the device caused when the transceivers are
installed above or below each other.
9

Figure 4 on page 10 shows the port panel of an EX4600 switch.
Figure 4: EX4600 Switch Port Panel
1—Electrostac Discharge (ESD) terminal 3—40 GbE ports (4)
2—10 G ports (24) 4—Expansion module bays with cover panels (2)
Access Port and Uplink Port LEDs on an EX4600 Switch
The Link/Acvity and Status LED conguraon for an EX4600 switch uses bi-colored LEDs. The two
gures in this topic show the locaon of those LEDs:
10

•Figure 5 on page 11 shows the locaon of the LEDs on the SFP+ access ports on the EX4600 and
Figure 6 on page 11 shows the locaon of the LEDs on the QSFP+ uplink ports on the EX4600.
Figure 5: LEDs on the SFP+ Ports
Figure 6: LEDs on the QSFP+ Ports
The LED in Figure 5 on page 11 labeled Link/Acvity indicate link acvity or a fault. The LED labeled
Status in indicates transceiver presence.
Table 4 on page 12 describes how to interpret the SFP+ port LEDs.
11