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26 InfraStruXure System—Installation and Start-Up
Connect AC Power and Control Wiring
Attach AC power and control wiring to the UPS. The power wires are coiled in the bottom of the
PDU. There are five main input wires, four bypass input wires, and four output wires coiled on the
floor of the PDU. Each set of wires is labeled. The control wires for the UPS Maintenance Bypass
control board and the UPS EPO control board are also coiled in the PDU. The diagram below
provides an overview of the connections that you will make between the PDU and the UPS.
To make the connections you will need to remove the rear lower panel of the UPS and the rear panel
of the PDU. Use the opening in the side panels of the enclosures to run the wires.
Note
Before you connect AC power and control wiring, connect utility conductors to the
PDU. For instructions, see Certified Electrician’s Instructions included with the PDU
documentation.
Electrical
Hazar
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Only qualified personnel trained by APC may connect the AC power and control
wiring.
Input
Bypass
Output
Maintenance Bypass Control
EPO Control
PDU
UPS