CAUTION: You must ensure that power connections maintain the proper polarity.
The power source cables might be labeled (+) and (–) to indicate their polarity. There
is no standard color coding for DC power cables. The color coding used by the external
DC power source at your site determines the color coding for the leads on the power
cables that attach to the terminal studs on each power supply.
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 12 on page 54).
Figure 12: DC Power Cable Lug
Crimp area
6 AWG conductor
All measurements in inches
0.28
diameter
each hole
2.25
0.25 0.370.625
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.
54
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