Argox R-400plus - Interface Specifications; Serial Interface

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Interface Specifications
This appendix presents the interface specifications of I/O ports
for the printer. These specifications include pin assignments,
protocols and detailed information about how to properly
interface your printer with your host or terminal.
Serial
The RS232 connector on the printer side is a female, DB-9.
Pin
Signal
Description
1
No function
Shorted to Pin - 6
2
Received Data,
RxD
Input. Serial “Received Data”
3
Transmitted Data,
TxD
Output. Serial “Transmitted
Data”.
4
No function
No connection
5
GND
Signal Ground
6
No function
Shorted to Pin - 1
7
Request to Send,
RTS
Output. Used as the control
signal for “H/W Flow Control “
8
Clear to Send, CTS
Input. Used as the control
signal for “H/W Flow Control”
9
+5V
Output. Pin 9 is reserved for
KDU (keyboard device unit)
Note:
Pin 9 is reserved for KDU (keyboard device unit) only; therefore