Datasheet

Site Preparation
InfraStruXure for Wiring Closets and Computer Rooms 9
Emergency Power-Off (EPO)
If required by local or national codes, you must connect the EPO (to disable output power in an
emergency) either as internally powered for use with non-powered switch circuits, or externally
powered for use with +24 VDC-powered switch circuits. The EPO circuit must be a Class 2 (UL and
CSA standard) and SELV (IEC standard) circuit, isolated from all primary circuitry.
The connection of the UPS to the EPO requires one of the following cable types:
Electrical
Hazard
A licensed electrician must connect the remote emergency power-off (EPO)
device.
See the installation istructions included with your UPS for instructions on wiring.
Cable Description
CL2 Class 2 cable for general use.
CL2P
Plenum cable for use in ducts, plenums, and other spaces used for
environmental air-flow.
CL2R Riser cable for use in a vertical run in a shaft from floor to floor.
CLEX Limited use cable for use in dwellings and in raceways.