PC connection for compatible transmitters becomes straightforward when the interface is already built into the cable. CP27 connects the transmitter directly to the USB port of the PC and uses a 3-pole connector for the COM AUX port.
The built-in USB/RS232 converter keeps the setup compact, with no separate converter stated in the source. It is suitable only for models with analog output and is specified for transmitter series HD48, HD49, HVAC40, HD2717, HD2817 and HD404.