Some pics of my xpl FirM Serial interface. This device allows xpl pc users to use FirM as a multizone ir transport system . This allows identical kit to be used (in separate zones) and also allows the user to do such things such as use a cheap remote to control lighting based on which receiving zone the signal came from...Im currently doing this with my CBUS lights but using xpl hvision instead of FirM serial. Since FirM Serial or FirM DO NOT generate or decode ir signals some other device must do so. In my test setup I used the USB UIRT which has had a plugin developed recently by John Bent. This is a nifty little device and I would recommend it to pc users.

TRANSMIT
To transmit a signal to say zone 6 the user must first send an xpl command to xpl FirM telling it that it wishes to send to zone 6. A pause must then be used (approx 200ms) to allow xpl FirM to setup zone 6. Then a command must be send to xpl uirt to tell it which ir signal to send. This signal must be a previously learned signal.

RECEIVE
When any ir signal is received by xpl uirt two Determinators run. One saves the newly received ir signal in a global (6 bytes). The other requests the receiving zone from xpl FirM. Other Determinators are created to trigger on certain xpl FirM messages AND the value of the received ir global is equal to a certain value..So basically IF the received ir signal came from zone 3 AND the signal is vol up DO something.
This setup works quite well ....