Srx240 Services Gateway Electrical And Power Requirements - Juniper SRX240 Hardware Manual

SRX240 Services Gateway Hardware Guide
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Documentation

SRX240 Services Gateway Electrical and Power Requirements

Related
Documentation
36
Table 18: Site Electrical Wiring Guidelines for the Services
Gateway (continued)
Site Wiring Factor
Radio Frequency
Interference (RFI)
Electromagnetic
Compatibility (EMC)
CAUTION: To comply with intrabuilding lightning/surge requirements, the
intrabuilding wiring must be shielded. The shielding for the wiring must be
grounded at both ends.
SRX240 Services Gateway AC Power Specifications and Requirements on page 37
SRX240 Services Gateway Grounding Specifications on page 59
SRX240 Services Gateway Power Supply on page 25
There are factors you must consider while planning the electrical wiring and power
availability at your site. These factors include the following requirements:
Power specifications and requirements for the device
Electrical wiring guidelines for the device installation site
Power, connection, and power cord specifications for the device
Grounding guidelines and specifications for the device
General Site Guidelines for Installing the SRX240 Services Gateway on page 30
Guideline
To reduce or eliminate the emission of RFI from your site wiring:
Use twisted-pair cable with a good distribution of grounding
conductors.
Use a high-quality twisted-pair cable with one ground conductor
for each data signal when applicable, if you must exceed the
recommended distances.
Provide a properly grounded and shielded environment and use
electrical surge-suppression devices.
Strong sources of electromagnetic interference (EMI) can cause
the following damage:
Destroy the signal drivers and receivers in the device
Conduct power surges over the lines into the equipment, resulting
in an electrical hazard
NOTE: If your site is susceptible to problems with EMC, particularly
from lightning or radio transmitters, you may want to seek expert
advice.
Copyright © 2015, Juniper Networks, Inc.