Dc Power Cable Lug Specifications For The Srx5400 Services Gateway; Dc Power Circuit Breaker Requirements For The Srx5400 Services Gateway; Figure 59: Dc Power Cable Lug - Juniper SRX5400 Hardware Manual

DC Power Cable Lug Specifications for the SRX5400 Services Gateway

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DC Power Circuit Breaker Requirements for the SRX5400 Services Gateway

Copyright © 2017, Juniper Networks, Inc.
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

End view
0.28
diameter
0.55
each hole
0.08 0.25 0.625
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.
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
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.
Chapter 12: DC Power Requirements and Specifications
Figure 59 on page
2.25
Crimp area
All measurements in inches
0.37
117).
6 AWG conductor
117