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RS232 Serial Interface
Chapter 10 Peripherals 109
RS232 Serial Interface
Figure 10-3RS232 Interface Pin Connections
The following table lists the signals at each pin.
Table 10-1 RS232 Interface Pin Connections
Pin Signal Details
1 CD Carrier detect (connected to pin 4)
2 RxD Input Receive data from external devices
3 TxD Output Transmit data to external devices
4 DTR Data terminal ready (connected to pin 1)
5GND Ground
6Not connected
7 B_Gnd Barcode Smartwand Ground
8Not connected
9V
cc
+5V, 10mA (idle) to 25mA (configure)
pin2