Figure 74: Typical Dc Source Cabling To The Services Gateway - Juniper SRX 5600 Hardware Manual

SRX 5600 Services Gateway Hardware Guide
DC Power Cable Specifications
Figure 74 on page 190 shows a typical DC source cabling arrangement.

Figure 74: Typical DC Source Cabling to the Services Gateway

The DC power supplies in
feeds derived from feed
powered by dedicated power feeds derived from feed
the commonly deployed
CAUTION: You must ensure that power connections maintain the proper polarity.
The power source cables might be labeled
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.
WARNING: For field-wiring connections, use copper conductors only.
For other electrical safety information, see "Electrical Safety Guidelines and Warnings"
on page 167.
CAUTION: Power cords and cables must not block access to services gateway
components or drape where people could trip on them.
For a description of the DC power supply, see , as opposed to the DC power
configuration (see "DC Power Supply" on page 30 for more information) For
instructions on connecting the DC power and grounding cables during initial
installation, see "Connecting Power to a DC-Powered Services Gateway" on page 66.
For instructions on replacing a DC power cable, see "Replacing a DC Power Supply
Cable" on page 141.
190
DC Power Specifications and Requirements
and must be powered by dedicated power
PEM0 PEM1
A , and the DC power supplies in
A/B feed redundancy for the system.
and
(+) ( )
PEM2 and PEM3 must be
. This configuration provides
B
to indicate their polarity. There