Serial Interface
C-6
C.2 Serial Interface
C.2.1 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
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.
RXD - Receive Data - (Pin 3)
This input carries serial asynchronous data sent by the computer to the
printer.
RTS - Request To Send - (Pin 4)
This output is always held high (above 3 volts).
CTS - Clear To Send - (Pin 5)
DSR - Data Set Ready - (Pin 6)
Unused.
SG - Signal Ground - (Pin 7)
All signals can transmit between the printer and the host computer to send
each signal with a signal ground.
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
20
Out
DTR
Data Terminal Ready
Содержание Ecosys FS-1800
Страница 1: ...FS 1800 FS 3800 Page Printer User s Manual Table of Contents...
Страница 23: ...Operating the Operator Panel 1 13 Sample MENU MAP Page...
Страница 70: ...Operating the Operator Panel 1 60 List of Fonts...
Страница 203: ...List of Fonts A 5 Font number Font samples 70 71 72 73 74 75 76 77 78 79 80...
Страница 204: ...List of Fonts A 6 A 2 2 KPDL Fonts 1...
Страница 205: ...List of Fonts A 7 A 2 3 KPDL Fonts 2...
Страница 243: ...E 1 Appendix E Printer Specifications E...
Страница 246: ...Glossary 1 Glossary E...
Страница 249: ...Glossary Glossary 4...