APC REMOTE POWER-OFF DEVICE AP9830 - Manual (Page 22)

Remote Power-Off Device — Installation and Quick Start 19
Configuration and Setup: Set up the Remote Power-Off Device
7. Using slip-joint pliers, terminate the wires by pressing
the plastic cap and keystone jack together until the cap
snaps into place.
8. Inspect the jack to ensure that the cap is securely snapped
into place and that both wires are terminated.
Placement of
accessories The Remote Power-Off Device works with any APC accessory
that is connected to the Remote Power-Off Device through the
DB9 port labeled TO SERVER OR ACCESSORIES.
Caution
Never connect an external APC UPS accessory
between the Remote Power-Off Device and the
UPS. An accessory connected in this manner may
be able to turn on the UPS during a remote power-
off condition.