Dc Power Source Cabling For The Srx5600 Services Gateway - Juniper SRX5600 Hardware Manual

DC Power Source Cabling for the SRX5600 Services Gateway

Figure 21 on page 60 shows a typical DC source cabling arrangement.
Figure 21: Typical DC Source Cabling to the Services Gateway
Central office
ground
DC power supply on SRX5600
The DC power supplies in slots PEM0 and PEM1 must be powered by dedicated power feeds derived
from feed A, and the DC power supplies in slots PEM2 and PEM3 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:
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:
CAUTION:
drape where people could trip on them.
Central office
secondary
DC power
distribution
Ground
window
Central office
ground
You must ensure that power connections maintain the proper polarity.
For field-wiring connections, use copper conductors only.
Power cords and cables must not block access to device components or
Rectifiers
Plant
Batteries
controls
Power plant and batteries
in same building
AC
60