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Appendix B: Interfacing Information
81
4250/4225 Card Printer UserÕs Manual
C. MINI 8-PIN SERIAL INTERFACE
The mini 8-pin serial interface connector is the standard interface used by
Macintosh. This serial port mates with a standard computer to printer serial cable.
For best results, always use a high-quality serial cable which is less than 6 feet in
length.
Pin assignments are as follows:
Pin Number
Signal Name Signal Description
1
HSKo
External Clock Output
± 2V < Vout < ± 3.6V; Rout < 450½
2
HSKi
Not Connected
3
TxD-
Not Connected
4
GND
Signal ground. Connected to logic and chassis ground.
5
RxD-
Receive data (inverted);Vih = 0.2V;
Vil = -0.2V; Rin > 12K½
6
TxD+
Not Connected
7
GPi
Not Connected
8
RxD+
Receive data. Received uninverted at SCCÕs RxD.
Vih = 0.2V; Vil = -0.2V; Rin > 12K½
TABLE B-2: Serial Interface Pin Assignments
8
7
6
5
4
3
2
1
510291_card printer 11/24/98 12:19 PM Page 81
Содержание Card Printer
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Страница 14: ...Section 2 Safety Precautions 9 4250 4225 Card Printer UserÕs Manual ...
Страница 15: ...10 Section 2 Safety Precautions 4250 4225 Card Printer UserÕs Manual ...
Страница 16: ...Section 2 Safety Precautions 11 4250 4225 Card Printer UserÕs Manual ...
Страница 17: ...12 Section 2 Safety Precautions 4250 4225 Card Printer UserÕs Manual ...
Страница 49: ...44 Section 5 Using Your 4200 Series Card Printer 4250 4225 Card Printer UserÕs Manual ...
Страница 61: ...56 Section 7 Maintenance 4250 4225 Card Printer UserÕs Manual ...
Страница 75: ...70 Section 9 Troubleshooting 4250 4225 Card Printer UserÕs Manual ...
Страница 83: ...78 Appendix A Magnetic Stripe Encoding Module 4250 4225 Card Printer UserÕs Manual ...
Страница 87: ...82 Appendix B Interfacing Information 4250 4225 Card Printer UserÕs Manual ...
Страница 93: ...88 Appendix C Internal Printer Settings 4250 4225 Card Printer UserÕs Manual ...
Страница 96: ...Printed in the United States of America P N 510291 ...