Just looking at this BBV now has a new converter that will help with this:
BBV BOSCH BIPHASE Converter
http://www.bbvcctv.com/protocol-converters/biphase-converter/
and the other one is:
BBV Protocol Converter
http://www.bbvcctv.com/protocol-converters/bbv-protocol-converter-code-translator/
They are based in the UK