Epson LQ-1050 Technical Manual page 233

REV.-A
A.2.1.3 CN3
To connect the printer to the host computer which has the RS-232C interface.
Use:
Number of pins: 6
Pin No. Signal
1 TXD
2 DTR (REV)
RXD
3
4
NC
5
SG
6 FG
NOTE: "Direction" of the signal flow is as viewed from the printer.
Table A-14. CN3 Pin Assignments
Dir.
Transmit data for X-ON/X-OFF handshake.
o
o Indicates whether data input is ready or not. When data input is inhibited,
Receive data
I
— Not connected
— Signal GND
—
Flame GND
Description
A-32