20
Optional serial interface pins and signal names
Pin
No.
Signal
Name
Direction
Function
1
FG
—
Frame Ground
2
TXD
OUT
Transmission data
3
RXD
IN
Receive data
4
RTS
OUT
Data terminal ready signal. This signal changes to SPACE when the printer is ready to
receive data.
6
DSR
IN
Signal line that indicates if the host computer can receive data.
SPACE: host can receive
MARK: host cannot receive
The status of this signal is not confirmed.
This signal can be specified as an internal reset signal using of DIP Switch 7 (page 19).
MARK of 1ms or longer activates the reset.
7
SG
—
Signal ground
20
DTR
OUT
Same as RTS (Pin 4).
25
INIT
IN
This signal can be specified as an internal reset signal using of DIP Switch 8 (page 19).
SPACE of 1ms or longer activates the reset.
13
25
1
14
Summary of Contents for Star SCP700 Series
Page 1: ...COMBINATION PRINTER SCP700 SERIES Programmer s Manual...
Page 79: ...77 Appendix Character Code Tables...
Page 80: ...78 Character table Normal...
Page 81: ...79 Character table katakana...
Page 82: ...80 Character table IBM...
Page 83: ...81 International Character Set...
