APC EPW9 Mount Additional EPO Boxes, Cascade Multiple EPO Boxes

5. Connect a suitable ground or PE wire to the #8-32 ground stud in the lower left corner of the EPO box.

Mount Additional EPO Boxes

There are two alternatives for wiring additional EPO boxes. Either cascade the boxes only to wire devices to one box (see “Cascade Multiple EPO Boxes“), or wire devices directly to each EPO box (see “Direct Wiring Alternative“).

Cascade Multiple EPO Boxes

When cascading EPO boxes, connect a wire pair from each device to the first EPO box according to the procedure in “Connect Devices to the EPO Box“. Jumper the subsequent EPO boxes with cascading cables (standard CAT-5 cable)— this procedure will join the EPO boxes in parallel.

10 Emergency Power Off System Installation and Operation 990–1611C-001