Denso BHT-604Q - Page 148

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BHT-604Q
5.1 Connector Interface(RS-232C Interface)
The BHT-604Q is equipped with a connector interface used to communicate with other devices.
5.1.1 Interface Connector and Pin Assignment
Connector interface : JC-25-J-3A (ø2.5 mm stereo mini jack)
Connector pin: JC-25-P3 (ø2.5 mm stereo mini plug)
S
DRD
G
ND
Signal Name Function
Signal Input/Output
BHT External device
SD
RD
SG
Send data
Receive data
Signal ground
→
←
—
Signal Voltage Input/Output Level
Signal Input Voltage Threshold (RD) Output Voltage Threshold (SD)
0
1
3V min.
-3V max
5V min.
-5V max.
 Note   The BHT connector port is not designed for frequent cable insertion and removal.
Repeatedly inserting and removing the cable more than once a day will result in a shortening o
f
the connector port lifetime, and therefore IrDA communication (CU-600 Series, IrDA device etc.)
should normally be used.
 Allow the specified signals only to enter the connector interface port. Entry of other signals will
result in a failure or malfunction of the BHT.