Rs-232c interface – Kyocera DP-3600 User Manual
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Serial (RS-232C/RS-422A) Interface
C-7
Serial (RS-232C/RS-422A) Interface
RS-232C interface
Interface Signals
The pins of the printer’s RS-232C interface connector carry the signals listed in Table C. 2. The table
also indicates whether each signal is incoming or outgoing with respect to the printer.
Table C. 2. RS-232C Signal Pin Assignments
Pin
In/out
Signal
Description
1
—
FG
Frame ground
2
Out
TXD
Transmit Data
3
In
RXD
Receive Data
4
Out
RTS
Request To Send
5
In
CTS
Clear To Send
6
In
DSR
Data Set Ready
7
—
SG
Signal Ground
11
—
+5 V DC
Reserved
20
Out
DTR
Data Terminal Ready
Brief descriptions of the signals follow.
FG – Frame Ground – (Pin 1)
This pin is connected directly to the printer frame.
TXD – Transmit Data – (Pin 2)
This output carries asynchronous data sent by the printer to the computer. It is used mainly in
handshaking protocols.