SRX650 Services Gateway DC Power Cable Specifications
The DC power supply in slot 0 must be powered by dedicated power feeds derived from
feed A, and the DC power supply in slot 1 must be 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 (+) 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.
WARNING: For field-wiring connections, use copper conductors only.
For other electrical safety information, see “SRX650 Services Gateway
Electrical Wiring Guidelines” on page 53.
CAUTION: Power cords and cables must not blockaccess toservicesgateway
components or drape where people could trip on them.
Table 17 on page 57 summarizes the specifications for the power cable(s), which you
must supply.
Table 17: DC Power Cable Specifications
Quantity and SpecificationCable Type
8 AWG, minimum 60°C wire, or as permitted by the local codePower
Related
Documentation
SRX650 Services Gateway Power Supply on page 33•
• Clearance Requirementsfor Airflow and Hardware Maintenance of the SRX650 Services
Gateway on page 48
• SRX650 Services Gateway Electrical Wiring Guidelines on page 53
• Site Preparation Checklist for the SRX650 Services Gateway on page 39
57Copyright © 2018, Juniper Networks, Inc.
Chapter 10: Power Requirements and Specifications
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