CHAPTER 9
Power Requirements and Specifications
•
SRX345 Services Gateway Electrical Wiring Guidelines on page 33
•
SRX345 Services Gateway Power Specifications and Requirements on page 34
•
SRX345 Services Gateway Supported AC Power Cords on page 35
SRX345 Services Gateway Electrical Wiring Guidelines
Table 10 on page 33 describes the factors you must consider while planning the electrical
wiring for the services gateway at your site.
CAUTION: It is particularly important to provide a properly grounded and
shielded environment and to use electrical surge-suppression devices.
Table 10: Site Electrical Wiring Guidelines for the SRX345 Services
Gateway
GuidelineSite Wiring Factor
To ensure that signaling functions optimally:
•
Install wires correctly.
Improperly installed wires can emit radio interference.
•
Do not exceed the recommended distances or pass wires
between buildings.
The potential for damage from lightning strikes increases if wires
exceed recommended distances or if wires pass between
buildings.
•
Shield all conductors.
The electromagnetic pulse (EMP) caused by lightning can
damage unshielded conductors and destroy electronic devices.
Signaling Limitations
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.
Radio Frequency
Interference (RFI)
33Copyright © 2017, Juniper Networks, Inc.
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General
Weight and Dimensions
