Xerox 3270 用户手册
3270 Programmer’s Guide
Appendix A
Appendix A
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Appendix A: RS 232/V24 Cable
Connection
Connection
(serial support)
Using the serial port
The following connections are available in the serial plug:
pin 1
NC
pin 2
RX data
pin 3
TX data
pin 4
DTR
pin 5
GND (Signal)
pin 6
DSR (Busy)
pin 7
RTS (always high)
pin 8
CTS
pin 9
N.C.
Example: Cable connections to HP LaserJet III:
converter
converter
HP LaserJet III
Cable type: DB9 male
Cable type: DB25 male
pin 2: __________________________________ pin 2
pin 3: __________________________________ pin 3
pin 4: _________________________________ pin 7
pin 5: _
pin 3: __________________________________ pin 3
pin 4: _________________________________ pin 7
pin 5: _
________________________________ pin 20
pin 6: _
pin 6: _
pin 7:
If the attached printer supports X_ON/X_OFF, you should use the
following protocol for the simplest setup.
You only require the following cable:
following protocol for the simplest setup.
You only require the following cable:
converter
Printer
2
Cable type: DB9 male
Cable type: dB25 male
pin 2: __________________________________ pin 2
pin 3: __________________________________ pin 3
pin 5: __________________________________ pin 7
pin 6: ___
pin 7: ___
pin 3: __________________________________ pin 3
pin 5: __________________________________ pin 7
pin 6: ___
pin 7: ___
2
For further information, please refer to the technical reference manual for the printer used.