C.2. Serial (Rs-232C/Rs-422A) Interface - Kyocera FS-6700 User Manual

C.2.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
1 —
2 Out
3 In
4 Out
5 In
6 In
7 —
11 —
20 Out
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.
Appendix C
Signal Description
FG Frame ground
TXD Transmit Data
RXD Receive Data
RTS Request To Send
CTS Clear To Send
DSR Data Set Ready
SG Signal Ground
+5V DC Reserved
DTR Data Terminal Ready
Host Computer Interface
C-7