Adva 3000R7 - Number of DC Power Cables

Power Cables
The type of power cables you use depends on the type of DC power supplies and the
voltages used.
The actual length of each DC power cable depends on the location of the
shelf within the rack and its proximity to the DC power source. Therefore,
you need to cut each power cable to the proper length and have the
appropriate connectors.
As the customer, you are responsible for assembling the appropriate
terminal connectors at the wiring end that is attached to the external DC
power source.
You should not twist or plait the separate multiple-wire stranded
copper conductor because that reduces the ampacity of the cable.
l Power
l Power — SH4R
l Power— SH4R-2
l PSM-DC
l PSM-DC4
l DC Power Electrical Safety Guidelines and Warnings
l Providing Power to the Shelves
Number of DCPower Cables
The number of cables needed with a shelf depends on how many PSMs you plan to
install and which power feeds you will use (Power A and/or Power B).
Shelf Power feed Number of
PSMs
Number of cables
needed
SH12 A feed only 1 or 2 PSM-DCs 1 cable
3 or 4 PSM-DCs 2 cables
A+B feed 1 or 2 PSM-DCs 2 cables
3 or 4 PSM-DCs 4 cables
SH4R and SH4R-2 A feed only 1, 2, or 3 PSM-
DC4s
1 cable
A+B feed 1, 2, or 3 PSM-
DC4s
2 cables
213 FSP 3000R7 High-Density Subshelf Guide - R17.2 - Issue:B