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3.3 Connector Interface Specification
The BHT is equipped with a connector interface for communicating with the host PC.
(1) Specification
• USB1.1, Full-speed compliant
• RS-232C interface
(2) Connector : TCX5110 HOSIDEN
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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