megahurts

Hello, I've got a new IP camera and I'm just getting started with these and am just trying to figure out the PIN outs to connect the wires. On the power outlet there are 4 pins, 12v CMT_R tap, CMT_T tap and G. I've never seen the CMT_R/CMT_T pins before and am not sure what they are. I've googled a bunch and can't find an explanation. Does anyone know? The cam pin out / cam can be seen here : http://imgur.com/a/OMNeM Thanks! Mike