Table 19: Power Supply Electrical Specifications for the SRX220 Services
Gateway (continued)
SpecificationPower Requirement
1.5 A maximum for SRX220H model
2.5 A maximum for SRX220H-POE model
AC system current rating
WARNING: The AC power cord for the services gateway is intended for use
with the device only and not for any other use.
Related
Documentation
SRX220 Services Gateway Power Supply on page 17•
• SRX220 Services Gateway Site Electrical Wiring Guidelines on page 35
• Site Preparation Checklist for the SRX220 Services Gateway on page 27
• SRX220 Services Gateway Grounding Specifications on page 37
• Interface Cable and Wire Specifications for the SRX220 Services Gateway on page 39
SRX220 Services Gateway Grounding Specifications
To meet safety and electromagnetic interference (EMI) requirements and to ensure
proper operation, the services gateway must be adequately grounded before power is
connected. A grounding lug on the back of the services gateway chassis is used to connect
the device to earth ground.
WARNING: Before device installation begins, a licensed electrician must
attach a cable lug to the grounding and power cables that you supply. A cable
with an incorrectly attached lug can damage the device (for example, by
causing a short circuit).
To ground the device before connecting power, you connect the grounding cable to earth
ground and then attach the lug on the cable to the chassis grounding point with the
screw.
Table 20 on page 37 lists the specifications of the grounding cable used with the device.
Table 20: Grounding Cable Specifications for the Services Gateway
SpecificationGrounding Requirement
14 AWG single-strand wire cableGrounding cable
Up to 4 AAmperage of grounding cable
Ring-type, vinyl-insulated TV14-6R lug or equivalentGrounding lug
37Copyright © 2012, Juniper Networks, Inc.
Chapter 6: Power Guidelines, Requirements, and Specifications
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