Juniper Networks EX2200 Manuel d'utilisateur Page 56
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Table 16: Site Electrical Wiring Guidelines
GuidelinesSite Wiring Factor
If your site experiences any of the following problems, consult
experts in electrical surge suppression and shielding:
•
Improperly installed wires cause radio frequencyinterference
(RFI).
•
Damage from lightning strikes occurs when wires exceed
recommended distances or pass between buildings.
•
Electromagnetic pulses (EMPs) caused by lightning
damages unshielded conductors and electronic devices.
Signaling limitations
To reduce or eliminate radio frequency interference (RFI) from
your site wiring, do the following:
•
Use twisted-pair cable with a good distribution of grounding
conductors.
•
If you must exceed the recommended distances, use a
high-quality twisted-pair cable with one ground conductor
for each data signal when applicable.
Radio frequency interference
If your site is susceptible to problems with electromagnetic
compatibility (EMC), particularly from lightning or radio
transmitters, seek expert advice.
Some of the problems caused by strong sources of
electromagnetic interference (EMI) are:
•
Destruction of the signal drivers and receivers in the switch
•
Electrical hazards as a result of power surges conducted
over the lines into the equipment
Electromagnetic compatibility
Related
Documentation
General Safety Guidelines and Warnings for EX Series Switches on page 113•
• General Electrical Safety Guidelines and Warnings for EX Series Switches on page 141
• Prevention of Electrostatic Discharge Damage on EX Series Switches on page 142
• Power Supply in EX2200 Switches on page 14
• Power Supply in EX3200 Switches
• Power Supply in EX4200 Switches
• AC Power Supply in EX4500 Switches
• DC Power Supply in EX4500 Switches
• AC Power Supply in an EX8200 Switch
• DC Power Supply in an EX8200 Switch
Environmental Requirements and Specifications for EX Series Switches
The switch must be installed in a rack or cabinet housed in a dry, clean, well-ventilated,
and temperature-controlled environment.
Copyright © 2010, Juniper Networks, Inc.36
Complete Hardware Guide for EX2200 Ethernet Switches
- Switches 1
- END USER LICENSE AGREEMENT 4
- Table of Contents 7
- Part 8 Compliance Information 10
- List of Figures 11
- Part 6 Returning Hardware 12
- Part 7 Safety Information 12
- List of Tables 13
- About This Topic Collection 15
- DescriptionTitle 16
- Software Topic Collections 16
- Downloading Software 17
- Documentation Symbols Key 18
- Documentation Feedback 19
- Requesting Technical Support 20
- Specifications 21
- EX2200 Switch Overview 23
- EX2200 Switch Models 24
- ValueDescription 25
- Additional 28
- Component Descriptions 31
- State and DescriptionColorLED 32
- Component Specifications 39
- DescriptionSignalPin 40
- Switches (continued) 48
- Site Preparation on page 33 51
- Site Preparation 53
- Chapter 4: Site Preparation 55
- GuidelinesSite Wiring Factor 56
- ToleranceDescription 57
- CHAPTER 5 59
- GuidelinesRack Requirement 60
- GuidelinesCabinet Requirement 61
- Cable Specifications 65
- Planning Power Requirements 67
- Figure 13: AC Plug Types 68
- Switch Components 69
- Installing the Switch 71
- Unpacking an EX2200 Switch 72
- Mounting an EX2200 Switch 73
- Rubber feet 75
- Mounting rack 77
- Mounting bracket 77
- Front panel 82
- Rear panel 82
- Baffle for PoE Models 82
- (EX2200-24P and EX2200-48P) 83
- Installing Switch Components 85
- Connecting the Switch 87
- Four-Post Rack 90
- Retainer clip 94
- Adjustment nut 94
- Management 95
- CONSOLE) on the device 96
- Through a Console Server 97
- Configuring the Modem 99
- Table 23: Port Settings 99
- CON or CONSOLE) on the 100
- Fiber-optic cable 102
- Transceiver 102
- CHAPTER 11 103
- 8. Click Next 111
- 11. Click Finish 111
- Removing Switch Components 113
- Routine Maintenance 121
- Returning Hardware 123
- Components 125
- Packing a Switch for Shipping 129
- Documentation 130
- Safety Information 131
- General Safety Information 133
- Radiation and Laser Warnings 141
- Class 1 Laser Product Warning 142
- Class 1 LED Product Warning 142
- Laser Beam Warning 143
- Information 147
- Jewelry Removal Warning 155
- Lightning Activity Warning 157
- Operating Temperature Warning 158
- Product Disposal Warning 159
- CHAPTER 18 161
- Compliance Information 169
- European Community 173
- United States 173
- FCC Part 15 Statement 173
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