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Juniper EX4200 User Manual

Juniper EX4200
344 pages
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Chapter 4 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Power Supply in EX4200 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
AC Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
DC Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
PoE Power Budget and AC Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
AC Power Supply LEDs in EX4200 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
DC Power Supply LEDs in EX4200 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Chapter 5 Viewing System Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Dashboard for EX Series Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Graphical Chassis Viewer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
System Information Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Health Status Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Capacity Utilization Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Alarms Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
File System Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Chassis Viewer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Part 2 Site Planning, Preparation, and Specifications
Chapter 6 Preparation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Site Preparation Checklist for EX4200 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Environmental Requirements and Specifications for EX Series Switches . . . . . . . 63
General Site Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Site Electrical Wiring Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Rack Requirements for EX4200 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Cabinet Requirements for EX4200 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Requirements for Mounting an EX4200 Switch on a Desktop or Wall . . . . . . . . . . 71
Clearance Requirements for Airflow and Hardware Maintenance for EX4200
Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Chapter 7 Power Specifications and Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Power Specifications for EX4200 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
AC Power Cord Specifications for EX4200 Switches . . . . . . . . . . . . . . . . . . . . . . . 76
Calculating the EX Series Switch Fiber-Optic Cable Power Budget . . . . . . . . . . . . 78
Calculating the EX Series Switch Fiber-Optic Cable Power Margin . . . . . . . . . . . . 78
Chapter 8 Transceiver and Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Pluggable Transceivers Supported on EX4200 Switches . . . . . . . . . . . . . . . . . . . . 81
SFP+ Direct Attach Cables for EX Series Switches . . . . . . . . . . . . . . . . . . . . . . . . 118
Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Standards Supported by These Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Network Cable Specifications for EX4200 Switches . . . . . . . . . . . . . . . . . . . . . . 122
Understanding EX Series Switches Fiber-Optic Cable Signal Loss, Attenuation,
and Dispersion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Signal Loss in Multimode and Single-Mode Fiber-Optic Cable . . . . . . . . . . . 123
Attenuation and Dispersion in Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . . . . 123
Copyright © 2015, Juniper Networks, Inc.iv
EX4200 Switch Hardware Guide

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Juniper EX4200 Specifications

General IconGeneral
ModelEX4200
Switching Capacity128 Gbps
LayerLayer 2 and Layer 3
Form Factor1U
Throughput96 Mpps
Maximum VLANs4096
MAC Address Table Size16, 000
DRAM1 GB
Flash Memory1 GB
Forwarding Rate96 Mpps
JUNOS SoftwareYes
Ports24 or 48
StackingUp to 10 switches in a Virtual Chassis configuration
Power SupplyAC or DC
ManagementCLI, SNMP, J-Web
Input Voltage100-240 VAC or -48 VDC
Operating Temperature0°C to 45°C
RedundancyRedundant power supplies
Virtual Chassis TechnologyYes
Storage Temperature-40°C to 70°C
Humidity5% to 90% non-condensing

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