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Copyright © 2017, Juniper Networks, Inc.108

EX4300 Switch Hardware Guide

Table of Contents

Default Chapter3
- Table of Contents3
- About the Documentation17
- About the Documentation19
  - Requesting Technical Support20
    - Self-Help Online Tools and Resources20
    - Opening a Case with JTAC20
- Chassis Components and Descriptions23
- Cooling System and Airflow23
- Overview23
- Power Supplies23
- System Overview23
Chapter 1 System Overview25
- System Overview25
  - EX4300 Switches Hardware Overview25
- EX4300 Switches First View26
  - 24-Port EX4300 Switches26
- Software26
- Figure 1: Front Panel of a 24-Port EX4300 Switch27
- Figure 2: Rear Panel of a 24-Port EX4300 Switch27
- System Overview27
Chapter 2 Chassis Components and Descriptions47
- Chassis Physical Specifications for EX4300 Switches47
  - Switches47
  - Table 11: Physical Specifications of the EX4300 Switch Chassis47
- Field-Replaceable Units in EX4300 Switches48
- LCD Panel in EX4300 Switches49
- Chassis Components and Descriptions49
Chapter 3 Cooling System and Airflow65
- Cooling System and Airflow in an EX4300 Switch65
Chapter 4 Power Supplies71
- Characteristics of an AC Power Supply72
- Figure 31: AC Power Supply for an EX4300 Switch72
- Table 27: Details of the AC Power Supplies in EX4300 Switches72
- AC Power Supply Airflow73
- Table 28: Airflow Direction in AC Power Supply Models for EX4300 Switches73
- N+0 Redundancy Configuration of AC Power Supplies74
- Table 29: N+0 AC Power Calculations for 24-Port EX4300 Switches74
- N+N Redundancy Configuration of AC Power Supplies75
- Table 30: N+0 AC Power Calculations for 32-Port EX4300 Switches75
- Table 31: N+0 AC Power Calculations for 48-Port EX4300 Switches75
- Table 32: N+N AC Power Calculations for 24-Port EX4300 Switches76
- Table 33: N+N AC Power Calculations for 32-Port EX4300 Switches77
- Table 34: N+N AC Power Calculations for 48-Port EX4300 Switches77
- AC Power Supply Leds in EX4300 Switches78
- Figure 32: AC Power Supply Leds in an EX4300 Switch78
- DC Power Supply in EX4300 Switches79
  - Table 35: AC Power Supply Leds in EX4300 Switches79
  - Characteristics of a DC Power Supply80
  - Figure 33: DC Power Supply for an EX4300 Switch80
  - Table 36: Details of the DC Power Supplies in EX4300 Switches80
  - DC Power Supply Airflow81
  - Table 37: Airflow Direction in DC Power Supply Models for EX4300 Switches81
  - N+0 Redundancy Configuration of DC Power Supplies82
  - N+N Redundancy Configuration of DC Power Supplies82
  - Table 38: N+0 DC Power Calculations for EX4300 Switch Configurations82
  - Table 39: N+N DC Power Calculations for EX4300 Switch Configurations83
- DC Power Supply Leds in EX4300 Switches84
- Figure 34: DC Power Supply Faceplate on an EX4300 Switch84
- Table 40: DC Power Supply Leds on an EX4300 Switch84
- Power Supplies71
  - AC Power Supply in EX4300 Switches71
Chapter 5 Viewing System Information87
- Dashboard for EX Series Switches87
- Viewing System Information89
- Preparation Overview107
- Site Planning, Preparation, and Specifications107
Chapter 6 Preparation Overview109
- Environmental Requirements and Specifications for EX Series Switches110
- Table 58: EX Series Switch Environmental Tolerances111
- General Site Guidelines114
- Site Electrical Wiring Guidelines115
- Rack Requirements115
- Table 59: Site Electrical Wiring Guidelines115
- Cabinet Requirements116
- Preparation Overview109
  - Site Preparation Checklist for EX4300 Switches109
  - Table 57: Site Preparation Checklist109
Chapter 7 Power Specifications and Requirements121
- AC Power Supply Specifications for EX4300 Switches121
- Table 62: 350 W AC Power Supply Specifications for an EX4300 Switch121
- AC Power Cord Specifications for an EX4300 Switch122
- Table 63: 715 W AC Power Supply Specifications for an EX4300 Switch122
- Table 64: 1100 W AC Power Supply Specifications for an EX4300 Switch122
- Power Specifications and Requirements123
Chapter 8 Transceiver and Cable Specifications131
- Pluggable Transceivers Supported on EX4300 Switches131
- Table 69: Optical Interface Support and Copper Interface Support for Gigabit133
- Table 70: Optical Interface Support for Fast Ethernet SFP Transceivers142
- Table 71: Optical Interface Support for SFP+ Transceivers143
- Table 72: Optical Interface Support for QSFP+ Transceivers151
- Pluggable Transceivers Supported on EX Series Switches155
- SFP+ Direct Attach Copper Cables for EX Series Switches156
- QSFP+ Direct Attach Copper Cables for EX Series Switches163
- Management Cable Specifications168
- Table 77: Specifications of Cables to Connect to Management Devices168
- Understanding EX Series Switches Fiber-Optic Cable Signal Loss, Attenuation169
Chapter 9 Pinout Specifications171
- Mini-USB Port Pinout Specifications172
- USB Port Specifications for an EX Series Switch172
- Table 79: Mini-USB Type-B Console Port Pinout Information172
- RJ-45 Management Port Connector Pinout Information174
- Port, QSFP+ Port, SFP+ Port, and SFP Port Connector Pinout Information174
- Table 80: RJ-45 Management Port Connector Pinout Information174
- Table 81: 10/100/1000BASE-T Ethernet Network Port Connector Pinout174
- Table 82: SFP Network Port Connector Pinout Information175
- Table 83: SFP+ Network Port Connector Pinout Information176
- Table 84: QSFP+ Network Port Connector Pinout Information177
- RJ-45 to DB-9 Serial Port Adapter Pinout Information179
- Table 85: RJ-45 to DB-9 Serial Port Adapter Pinout Information179
- Pinout Specifications171
  - Console Port Connector Pinout Information171
  - Table 78: Console Port Connector Pinout Information171
- Initial Installation and Configuration181
Chapter 10 Unpacking the Switch183
- Parts Inventory (Packing List) for an EX4300 Switch184
- Table 86: Inventory of Components Provided with an EX4300 Switch184
- Registering Products-Mandatory for Validating Slas185
- Unpacking the Switch183
  - Unpacking an EX4300 Switch183
Chapter 11 Installing the Switch187
- Installing and Connecting an EX4300 Switch187
- Mounting an EX4300 Switch188
- Mounting an EX4300 Switch on Two Posts of a Rack or Cabinet189
- Figure 41: Attaching the Mounting Bracket to the Side Panel of the Switch190
- Mounting an EX4300 Switch on Four Posts of a Rack or Cabinet191
- Figure 42: Mounting the Switch on Two Posts of a Rack191
- Mounting an EX4300 Switch in a Recessed Position in a Rack or Cabinet191
- Verify that the Site Meets the Requirements Described in "Site Preparation Checklist for EX4300 Switches" on Page192
- Maintenance, and Secure It to the Building Structure192
- Read "General Safety Guidelines and Warnings" on Page 283, with Particular Attention to "Chassis Lifting Guidelines" on Page192
- Figure 43: Attaching the Side Mounting-Rail to the Switch Chassis193
- Figure 44: Mounting the Switch on Front Posts of a Rack194
- Figure 45: Sliding the Rear Mounting-Blades into the Side Mounting-Rails194
- Mounting an EX4300 Switch in a Recessed Position in a Rack or Cabinet195
- Mounting an EX4300 Switch on a Wall195
- Figure 46: Attaching Wall-Mount Brackets to the Switch Chassis197
- Installing and Removing EX4300 Switch Hardware Components198
- Figure 47: Mounting the Switch on a Wall198
Chapter 12 Connecting the Switch to Power201
- Connecting Earth Ground to an EX Series Switch201
Chapter 13 Switch204
- Table 88: Special Instructions to Follow before Connecting Earth Ground to a204
- Figure 48: Connecting the Grounding Lug to a Switch Mounted on Four Posts of205
- Connecting AC Power to an EX4300 Switch207
- Figure 50: Connecting an AC Power Cord to an AC Power Supply in an EX4300209
- Connecting DC Power to an EX4300 Switch210
- Figure 51: Securing Ring Lugs to the Terminals on the DC Power Supply214
- Connecting the Switch to the Network215
Chapter 14 Performing Initial Configuration229
- EX4300 Default Configuration229
- Connecting and Configuring an EX Series Switch (CLI Procedure)237
- Connecting and Configuring an EX Series Switch (J-Web Procedure)240
- Figure 65: LCD Panel in an EX3200, EX4200, EX4500, EX4550, or EX8200242
- Figure 66: LCD Panel in an EX4300 Switch242
- Configuring the LCD Panel on EX Series Switches (CLI Procedure)245
  - Disabling or Enabling Menus and Menu Options on the LCD Panel245
  - Configuring a Custom Display Message246
- Installing, Maintaining, and Replacing Components249
Chapter 15 Replacing Cooling System Component251
- Replacing Cooling System Component251
Chapter 16 Replacing Power Supply255
- Replacing Power Supply255
Chapter 17 Replacing Uplink Module263
- Installing an Uplink Module in an EX4300 Switch263
  - Figure 73: Installing a 4-Port SFP+ Uplink Module in a 24-Port or 48-Port EX4300264
  - Switch264
- Removing an Uplink Module from an EX4300 Switch265
- Figure 74: Installing a 2-Port QSFP+ Uplink Module in a 32-Port EX4300265
- Figure 75: Installing an 8-Port SFP+ Uplink Module in a 32-Port EX4300265
- Figure 76: Removing a 4-Port SFP+ Uplink Module from a 24-Port or 48-Port EX4300 Switch267
- Figure 77: Removing a 2-Port QSFP+ Uplink Module from a 32-Port EX4300267
- Figure 78: Removing an 8-Port SFP+ Uplink Module from a 32-Port EX4300267
Chapter 18 Replacing Transceiver269
- Removing a Transceiver271
- Figure 79: Installing a Transceiver271
- Figure 80: Removing an SFP, SFP+, XFP, or a QSFP+ Transceiver273
- Replacing Transceiver269
  - Installing a Transceiver269
Chapter 19 Maintaining and Replacing Fiber-Optic Cable275
- Connecting a Fiber-Optic Cable275
- Disconnecting a Fiber-Optic Cable from a Device276
- Figure 81: Connecting a Fiber-Optic Cable to an Optical Transceiver Installed in276
- Maintaining Fiber-Optic Cables277
Chapter 20 Contactingcustomersupportandreturningthe Chassisor279
- Components279
- Returning an EX4300 Switch or Component for Repair or Replacement279
- Locating the Serial Number on an EX4300 Switch or Component280
- Contacting Customer Support to Obtain Return Material Authorization284
- Packing an EX4300 Switch or Component for Shipping284
  - Packing an EX4300 Switch for Shipping285
  - Packing EX4300 Switch Components for Shipping286
- Part 5 Troubleshooting289
- Troubleshooting289
Chapter 21 Alarms and Syslog Messages291
- Understanding Alarm Types and Severity Levels on EX Series Switches291
- Table 89: Alarm Terms291
- Chassis Component Alarm Conditions on EX4300 Switches292
- Table 90: Chassis Component Alarm Conditions on EX4300 Switches293
- Checking Active Alarms with the J-Web Interface296
- Monitoring System Log Messages297
- Table 91: Summary of Key Alarm Output Fields297
- Table 92: Filtering System Log Messages298
- Table 93: Viewing System Log Messages300
- Safety and Compliance Information303
Chapter 22 Generalsafety Guidelinesand Warnings305
- General Safety Guidelines and Warnings305
- Definitions of Safety Warning Levels306
- Qualified Personnel Warning308
- Warning Statement for Norway and Sweden309
Chapter 23 Fire Safety Requirements311
Chapter 24 Installation Safety Guidelines and Warnings313
- Installation Instructions Warning313
- Chassis Lifting Guidelines314
- Restricted Access Warning314
- Ramp Warning316
- Rack-Mounting and Cabinet-Mounting Warnings316
- Wall-Mounting Warning for EX4300 Switches320
- Grounded Equipment Warning320
Chapter 25 Radiation and Laser Safety Guidelines and Warnings323
- Laser and LED Safety Guidelines and Warnings323
- Radiation from Open Port Apertures Warning325
Chapter 26 Maintenance and Operational Safety Warnings327
- Maintenance and Operational Safety Guidelines and Warnings327
Chapter 27 Electrical Safety Guidelines and Warnings333
- General Electrical Safety Guidelines and Warnings333
- Action to Take after an Electrical Accident334
- Prevention of Electrostatic Discharge Damage335
- AC Power Electrical Safety Guidelines336
- Figure 90: Placing a Component into an Antistatic Bag336
- AC Power Disconnection Warning337
- DC Power Electrical Safety Guidelines for Switches338
- DC Power Disconnection Warning341
- DC Power Grounding Requirements and Warning342
- DC Power Wiring Sequence Warning343
- DC Power Wiring Terminations Warning345
- Multiple Power Supplies Disconnection Warning346
- TN Power Warning346
Chapter 28 Agency Approvals and Compliance Statements349
- Agency Approvals for EX Series Switches349
- Compliance Statements for EMC Requirements for EX Series Switches350
- Compliance Statements for Acoustic Noise for EX Series Switches354

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