Can you provide direct link for your device to see maybe a paper about it.
I think that work with a COM port. with synaser simply create a conecction to that the port
YourInstance:TBlockSerial;
YourInstance. create;
YourInstance.Connect('COM6');
YourInstance.config(9600,8,'N',1,false,false);
then see how your device send and got data.
saludos