Site Electrical Wiring Guidelines For Ex Series Switches; Table 38: Site Electrical Wiring Guidelines - Juniper EX8208 Complete Hardware Manual

Complete Hardware Guide for EX8208 Ethernet Switches
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Site Electrical Wiring Guidelines for EX Series Switches

Table 38: Site Electrical Wiring Guidelines

Site Wiring Factor
Signaling limitations
Radio frequency interference
88
Prevention of Electrostatic Discharge Damage on EX Series Switches on page 298
Clearance Requirements for Airflow and Hardware Maintenance for EX2200 Switches
Clearance Requirements for Airflow and Hardware Maintenance for EX3200 Switches
Clearance Requirements for Airflow and Hardware Maintenance for 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 95
Clearance Requirements for Airflow and Hardware Maintenance for an EX8216 Switch
Environmental Requirements and Specifications for EX Series Switches on page 89
Table 38 on page 88 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.
Guidelines
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.
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.
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