The interface identifies {HEAD ~ a factory data bus type} corresponding to the factory data bus, out of {TAIL ~ a plurality} of potential factory data bus types 
The interface identifies { HEAD ~ a factory data bus type } corresponding to the factory data bus , out of { TAIL ~ a plurality } of potential factory data bus types
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH