Juniper Networks SRX 210 manual SRX210 Services Gateway Power Specifications and Requirements

SRX210 Services Gateway Hardware Guide

Table 46: Site Electrical Wiring Guidelines for the 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

NOTE: If your site is susceptible to problems with EMC, particularly from lightning or radio transmitters, you may want to seek expert advice.

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.

Related Topics ■ General Site Guidelines for Installing the SRX210 Services Gateway on page 51

■SRX210 Services Gateway Electrical and Power Requirements on page 55

■SRX210 Services Gateway Power Specifications and Requirements on page 158

SRX210 Services Gateway Power Specifications and Requirements

The AC power system electrical specifications for the SRX210 Services Gateway are listed in Table 47 on page 158.

Table 47: Power Supply Electrical Specifications for the SRX210 Services Gateway

Power Requirement	Specification
AC input voltage	100 to 240 VAC
AC input line frequency	50 to 60 Hz

158■ SRX210 Services Gateway Power Specifications and Requirements