Juniper Networks EX8208 - Manual (Page 120)

Related Topics Prevention of Electrostatic Discharge Damage on EX Series Switches on page 292 •
• Clearance Requirements for Airflow and Hardware Maintenance for EX2200 Switches
• Clearance Requirements for Airflow and Hardware Maintenance for EX3200 and
EX4200 Switches
• Clearance Requirements for Airflow and Hardware Maintenance for EX4500 Switches
• Clearance Requirements for Airflow and Hardware Maintenance for an EX8208 Switch
on page 101
• Clearance Requirements for Airflow and Hardware Maintenance for an EX8216 Switch
• Environmental Requirements and Specifications for EX Series Switches on page 95
Site Electrical Wiring Guidelines for EX Series Switches
Table 37 on page 94 describes the factors you must consider while planning the electrical
wiring at your site.
WARNING: It is particularly important to provide a properly grounded and shielded
environment and to use electrical surge-suppression devices.
Table 37: Site Electrical Wiring Guidelines
Guidelines Site Wiring Factor
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.
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
Copyright © 2010, Juniper Networks, Inc. 94
Complete Hardware Guide for EX8208 Ethernet Switches