Denso BHT-100B, BHT-100Q user manual Chapter 3

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Chapter 3
Communications Operations of
the BHT-100Q/100B
This chapter describes the communications operations of the BHT-100Q/100B—the IR
communication, RS-232C interface specifications, the basic communications specifica-
tions, and the communications protocols—for data transfer with the host computer or
other devices.
3.1 Infrared Communication....................................................................................... 109
3.2 RS-232C Interface Specifications.......................................................................... 111
[ 1 ] Interface Connector and Pin Assignment .............................................111
[ 2 ] Interface Cable Connection.................................................................... 112
3.3 Basic Communications Specifications and Parameters..................................... 113
3.3.1 Basic Communications Specifications ..........................................................113
3.3.2 Communications Parameters ........................................................................115
3.4 Communications Protocols................................................................................... 116
3.4.1 BHT-protocol ................................................................................................... 116
[ 1 ] Overview.................................................................................................. 116
[ 2 ] Control Characters.................................................................................. 117
[ 3 ] Basic Format of Transmission Messages.............................................. 119
[ 4 ] Text Format.............................................................................................. 120
3.4.2 BHT-Ir Protocol ................................................................................................122
[ 1 ] Overview.................................................................................................. 122
[ 2 ] Control Characters.................................................................................. 123
[ 3 ] Basic Format of Transmission Messages.............................................. 125
[ 4 ] Text Format.............................................................................................. 126