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Contents
Introduction i
1 / Description of the CR-510 1
Front Panel Controls and Indicators 2
Rear Panel Controls 3
2/ Setting up the CR-510 5
Connecting the Card Reader to a TRS-80 Model II or I I I 5
Loading Cards 5
Baud Rate D I P Switch Settings 7
The CR-510 Diagnostic Self-Test 9
3/ General Information 11
Preparing, Handling, and Maintaining Cards 11
How the Card Reader Works 12
Card Feed Modes 14
Single Feed Operation 14
Demand Feed Operation 14
Continuous Feed Operation 14
Adjusting the CR-510's Feed 14
(leaning the Rubber Roller 15
4/ Using the CR-510 21
Programming the Card Reader 21
CR-510 Command Structure 21
Data Format 21
CR-510 Commands 21
Format Commands 22
CR-510 Communications Overview 28
TRS-80 Input Buffer Management 29
Data Transmission Integrity (Echo On) 29
5/ Using the CR-510 Demonstration Software 31
Running a Demonstration 31
COBOL Card Reader Program 31
How to Run Demonstration Programs Without the "DO" Files 32
Programmer's Guide 33
Program Listings 35
Appendix A/ Hollerith to ASCII Conversions A1
Appendix B/ Card Specifications B1
Appendix C/ Troubleshooting C1
Appendix D/ System and Terminal Mode Tests D1
Appendix E/ Specifications E1
Summary of Contents for TRS-80 CR-510
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