ISY-99i/ISY-26 INSTEON:X10 Intro

If you have an operational X10 system, you don’t need any additional hardware

To “use” X10 devices, refer to them by house & unit code in your programs -- the software module is not required

If you want to use X10 RF devices like the motion sensor, you will need a transceiver somewhere in your system so that the signals can get to the PLM which is a Powerline-only X10 device