The ELK-M1PCSPIM is a special Powerline Interface Module containing a built-in M1XSP Serial Port chip. This all-in-one device makes it easy to permanently connect the ELK M1 Control to a UPB network. Simply locate a convenient unused AC Power Outlet, connect a cable from the M1 data bus to the four (4) terminals on the ELKM1 PCSPIM, and perform an M1 data bus enrollment. The long distance capability of the M1 data bus makes it possible to locate the ELKM1 PCSPIM virtually anywhere, without a lot of complex or ugly cabling or connections. UPB utilizes the AC wiring circuit for transmission, without new or additional wiring, and without radio frequency signals.