Srx550 Services Gateway Supported Ac Power Cords - Juniper SRX550 Hardware Manual

SRX550 Services Gateway Hardware Guide
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SRX550 Services Gateway Supported AC Power Cords

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Table 14: Site Electrical Wiring Guidelines for the SRX550 Services
Gateway (continued)
Site Wiring Factor Guideline
Radio frequency To reduce or eliminate the emission of RFI from your site wiring:
interference (RFI)
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.
Electromagnetic Provide a properly grounded and shielded environment and use electrical
compatibility (EMC) 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.
TIP:
lightning or radio transmitters, you might want to seek expert advice.
CAUTION: Some ports are designed for use as intrabuilding interfaces only
(Type 2 or Type 4 ports, the battery return connection is to be treated as an
Isolated DC return (that is, DC-I), as defined in GR-1089-CORE) and require
isolation from the exposed OSP cabling. To comply the NEBS requirements
and protect against lightening surges and commercial power disturbances,
the intrabuilding port(s) of the device MUST NOT be metallically connected
to interfaces that connect to the OSP or its wiring. The intrabuilding port(s)
of the device is suitable for connection to intrabuilding or unexposed wiring
or cabling only. The addition of primary protectors is not sufficient protection
to connect these interfaces metallically to OSP wiring.
General Site Installation Guidelines for the SRX550 Services Gateway on page 37
Maintaining the SRX550 Services Gateway Power Supply on page 126
SRX550 Services Gateway Power Requirements on page 54
SRX550 Services Gateway Environmental Specifications on page 38
WARNING: The AC power cord for the services gateway is intended for use
with the services gateway only and not for any other use.
If your site is susceptible to problems with EMC, particularly from
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