Does anyone know anything about the Isuzu Powerlink? It's an OBDII to serial connector for Isuzus that comes with its own software, but I need to write my own application for it. Anybody know where I could find the protocol for communicating with it over the serial port? Does OBDII provide any standard for the serial end, or is that totally up to the manufacturer? Or, if I used a connector like the BR-1, would it be possible to write software to access the extended data that isn't standardized under OBDII? Thanks.