Table 11: Site Electrical Wiring Guidelines for the SRX1500 Services
Gateway (continued)
GuidelineSite Wiring Factor
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
TIP: If your site is susceptible to problems with EMC, particularly from
lightning or radio transmitters, you might want to seek expert advice.
Electromagnetic
compatibility (EMC)
WARNING: 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 with NEBS requirements
and protect against lightning 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.
Related
Documentation
SRX1500 Services Gateway Supported AC Power Cords on page 32•
• SRX1500 Services Gateway AC Power Supply Electrical Specifications on page 33
• SRX1500 Services Gateway DC Power Supply Electrical Specifications on page 34
SRX1500 Services Gateway Supported AC Power Cords
WARNING: The AC power cord for the services gateway is intended for use
with the services gateway only and not for any other use.
NOTE: In North America, AC power cords must not exceed 4.5 m
(approximately 14.75 ft) in length, to comply with National Electrical code
(NEC) Section 400-8 (NFPA 75, 5-2.2) and 210-52, and Canadian Electrical
Code (CEC) Section 4-010(3).
Copyright © 2017, Juniper Networks, Inc.32
SRX1500 Services Gateway Hardware Guide
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