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APPENDIX A
Connector Pin-Outs
A-2
6400 Hand-Held Computer User’s Guide
Optional Communication Adapter 9-Pin
D-Sub Connector
Figure A-2
9-Pin D-Sub Connector Pinouts
12345
67 89
Negative contact
Positive contact
Pin Signal Function
1 No Connect Data Carrier Detect
2 RXD Receive Data
3 TXD Transmit Data
4 looped to DSR Data Terminal Ready
5 GND Ground
6 looped to DTR Data Send Ready
7 RTS Request To Send
8 CTS Clear To Send
9Vcc 5volts*
B
CAUTION: * 5 volts on pin 9 is f or use with tethered scanners and printers
only, this may damage modems.