DC Power Cable Lug Specifications for the SRX5400 Services Gateway
The accessory box shipped with the services gateway includes the cable lugs that attach
to the terminal studs of each power supply (see
).
Figure 59: DC Power Cable Lug
Crimp area
6 AWG conductor
All measurements in inches
0.28
diameter
each hole
2.25
0.25
0.37
0.625
g001188
0.55
End view
0.08
CAUTION:
Before services gateway 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 services gateway.
WARNING:
The services gateway is a pluggable type A equipment installed
in restricted access location. It has a separate protective earthing terminal
[Metric -M6 and English - ¼-20 screw) ground lugs] provided on the chassis.
This separate protective earth terminal must be permanently connected to
earth.
Related
Documentation
Calculating Power Requirements for the SRX5400 Services Gateway on page 93
•
•
SRX5400 Services Gateway DC Power Supply Specifications on page 115
•
DC Power Circuit Breaker Requirements for the SRX5400 Services Gateway on page 117
•
DC Power Source Cabling for the SRX5400 Services Gateway on page 118
•
DC Power Cable Specifications for the SRX5400 Services Gateway on page 116
DC Power Circuit Breaker Requirements for the SRX5400 Services Gateway
Each DC power supply has a single DC input (–48 VDC and return) that requires a
dedicated facility circuit breaker. We recommend that you use a customer site circuit
breaker rated for 40 A (–48 VDC) minimum for each DC power supply, or as required by
local code. Doing so enables you to operate the services gateway in any configuration
without upgrading the power infrastructure.
If you plan to operate a DC-powered services gateway at less than the maximum
configuration and do not provision a 40 A (–48 VDC) circuit breaker, we recommend
that you provision a circuit breaker for each DC power supply rated for at least 125% of
the continuous current that the system draws at –48 VDC, or as required by local code.
117
Copyright © 2017, Juniper Networks, Inc.
Chapter 12: DC Power Requirements and Specifications
Summary of Contents for SRX5400
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