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InfraStruXure System - Installation and Start-Up 25
Route and Attach Power Cables to the Racks
Overhead Wiring
Route and attach power cables to equipment racks. If you ordered overhead wiring, connect the
prewired power cables of the InfraStruXure PDU as follows:
1. Install the Shielding Troughs, Shielding Partitions, and Cable Ladders so that you can route power
cables from the PDU to the Netshelter Enclosures.
2. Find the numbers that indicate the enclosure to which each power cable will supply power. These
numbers appear on the roof of the PDU where the power cables exit, and on the ends of each power
cable.
Note: The enclosures are not numbered. Consult your APC InfraStruXure Configure-To-Order
(CTO) report to determine the enclosure associated with each power cable.
3. Beginning with the power cables for the enclosures farthest from the PDU, run each power cable
within the Shielding Trough along the row and, if necessary, across one or more Cable Ladders to
the enclosure to which it will provide power.
Note: Ensure that the L21-20 twist-lock connector at the end of each power cable always lies
on top of any longer power cables in the Shielding Trough.
4. Connect the appropriate power cable to APC power management equipment in the enclosure in one
of the four following ways:
– For single-feed devices without redundancy: attach a power
cable directly to a Rack PDU installed in a NetShelter VX
Enclosure.
– For dual-feed devices within a
redundant system: attach a power cable
from each PDU into two different Rack
PDUs in the NetShelter VX Enclosure.
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