3 ] interface specifications, Interface specifications – Denso BHT-400B-CE User Manual
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Appendices
[ 3 ] Interface Specifications
IrDA Interface
Synchronization:
Start-stop
Input
signals:
RD
Output
signals:
SD
Transmission speed:
115,200 bps max.
Connector Interface
Specification:
USB1.1, Full-speed compliant, RS-232C interface
Connector:
TCX5110
HOSIDEN
Pin assignment:
See below.
1 pin
Pin No.
Signal name
Data direction
1 GND
-
2
D+ (USB)
Input / Output
3
D- (USB)
Input / Output
4 VBUS
(USB)
-
5 CTS
(RS-232C)
Input
6 RxD
(RS-232C)
Input
7 RTS
(RS-232C)
Output
8 TxD
(RS-232C)
Output
9 RS-232C
detect
(Note3)
Input
10 Reserve
-
(Note 1) The Input / Output direction is stipulated from the BHT side.
(Note 2) Use the exclusive cable only.
(Note 3) When the RS-232C detect signal is at a low level, it will detect that the BHT is
connected to the RS-232C interface.
(On the RS-232C cable side there will be a short from pin 1to pin 9)
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