Appendices
181
[ 3 ] Interface Specifications
IrDA Interface
Synchronization: Start-stop
Input signals: RD
Output signals: SD
Transmission speed: 115,200 bps max.
Direct-connect Interface
Synchronization: Start-stop
Transmission speed: 115,200 bps max.
Signal level: Conforms to the RS-232C interface
Pin assignment: As shown below.
Pin No. Signal Functions
Signal Input/Output
BHT External device
1 SG (GND) Ground for signals —
2 SD Send data →
3 RD Receive data ←
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