Juniper OCX1100, Hardware Manual

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Site Electrical Wiring Guidelines
Table 21 on page 34 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 21: 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 damage
unshielded conductors and electronic devices.
Signaling limitations
To reduce or eliminate RFI from your site wiring, do the following:
• Use a 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 device
•
Electrical hazards as a result of power surges conducted over
the lines into the equipment
Electromagnetic compatibility
Related
Documentation
General Safety Guidelines and Warnings on page 137
•
•
General Electrical Safety Guidelines and Warnings on page 165
•
Prevention of Electrostatic Discharge Damage on page 167
Copyright © 2017, Juniper Networks, Inc. 34
OCX1100 Switch Hardware Guide