Srx3400 Services Gateway Dc Power Cable Specifications; Figure 40: Typical Dc Source Cabling To The Srx3400 Services Gateway - Juniper SRX3400 Hardware Manual

SRX3400 Services Gateway DC Power Cable Specifications

Copyright © 2017, Juniper Networks, Inc.
Figure 40 on page 73 shows a typical DC source cabling arrangement.

Figure 40: Typical DC Source Cabling to the SRX3400 Services Gateway

The DC power supply in slot
from feed A, and the DC power supply in slot
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.
For other electrical safety information, see General Electrical Safety Guidelines
and Warnings.
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
Supply Overview" on page
Chapter 12: DC Power Requirements and Specifications
must be powered by dedicated power feeds derived
PEM0
must be powered by dedicated power
PEM1
"SRX3400 Services Gateway DC Power
48. For instructions on connecting the DC power and grounding
and to indicate
(+) (–)
73