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A.4 Auxiliary RS232 interface port
The auxiliary R232 port connection allows you to connect an industry-standard external OCR
reader, decoded barcode scanner or RS232 device.
Specification
Details
Data input
Standard ASCII RS232
Configurable settings
9600 baud
7-bit or 8-bit
None or even parity
One stop
A +5 V, 150 mA power supply is available on pin 9 of a 9-pin D-type connector.
Pin No.
Signal
1
Free
2
RXD input to keyboard
3
TXD output from
keyboard
4
DTR output from
keyboard, etc.
5
Ground
6
DSR input
7
RTS output
8
CTS input
9
+5V