Dc Power Source Cabling For The Srx5400 Services Gateway; Figure 60: Typical Dc Source Cabling To The Services Gateway - Juniper SRX5400 Hardware Manual

SRX5400 Services Gateway Hardware Guide
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DC Power Source Cabling for the SRX5400 Services Gateway

118
Calculating Power Requirements for the SRX5400 Services Gateway on page 93
SRX5400 Services Gateway DC Power Supply Specifications on page 115
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 Cable Lug Specifications for the SRX5400 Services Gateway on page 117
Figure 60 on page 118 shows a typical DC source cabling arrangement.

Figure 60: Typical DC Source Cabling to the Services Gateway

The DC power supplies in slots
feeds derived from feed A, and the DC power supplies in slots
powered by dedicated power feeds derived from feed B. This configuration provides the
commonly deployed A/B feed redundancy for the system.
CAUTION: You must ensure that power connections maintain the proper
polarity. The power source cables might be labeled
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.
WARNING: For field-wiring connections, use copper conductors only.
CAUTION: Power cords and cables must not block access to device
components or drape where people could trip on them.
PEM0 and PEM1 must be powered by dedicated power
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and must be
PEM2 PEM3
and to indicate
(+) (–)