Here is a picture of the DRS1 DTX021 transmitter: http://www.tamvalleydepot.com/images/DRS1MkII_large_P1010174.jpg and a DRS1 DRX021 receiver: http://www.tamvalleydepot.com/images/DRS1MkII_lrg_P1010168.jpg from this site: http://www.tamvalleydepot.com/products/drs1deadrailcomponents.html Wire the DRS1 "DTX021" wireless transmitter to the track A and B output of any DCC command station in the world and a DRS1 Receiver "DRX021" to the input of a DCC Cutout Device, and the K and J output of the DCC cutout device: http://www.dcc4pc.co.uk/Cutout%20Device%20Manual.pdf to the K and J input of the LRC120, and then the K1 and J1 output of the LRC120: http://www.lenzusa.com/products/modules/lrc120.htm to a track segment, a wireless Railcom transmission may be possible. The yellow wire of the DRS1 DRX021 is the DCC track B and the white wire is the DCC track A. The DRS1 DRX021 can also be connected to a DCC locomotive decoder by connecting the yellow and white wires to the red and black wires of any DCC decoder in the world! You might actually find this wireless device handy for yourself one day. The red wire is the + and black wire is - for a power source.