Complete Hardware Guide for EX2200 Ethernet Switches
Table 16: Site Electrical Wiring Guidelines
Site Wiring Factor | Guidelines |
Signaling limitations | If your site experiences any of the following problems, consult |
| experts in electrical surge suppression and shielding: |
| • Improperly installed wires cause radio frequency interference |
| (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. |
Radio frequency interference | To reduce or eliminate radio frequency interference (RFI) from |
| your site wiring, do the following: |
| • Use |
| conductors. |
| • If you must exceed the recommended distances, use a |
| |
| for each data signal when applicable. |
Electromagnetic compatibility | 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 |
Related • | General Safety Guidelines and Warnings for EX Series Switches on page 113 |
Documentation | 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,
36 | Copyright © 2010, Juniper Networks, Inc. |
