Make your own free website on Tripod.com

Page 3

 

Home
Up

 

Contents

 

Introduction              4

 

1. Project Overview ~ Integrated Telephone Data logging (ITDL) System                        5

 

2. Telephone Interface and Number Encoding              7

 

3. Polarity reversal and interrupt handling              8

 

4. Real Time Clock and Time Management              9

 

5. Information Storage              10

 

6. Printer interfacing              11

 

7. Interfacing to computer              12

 

8. Power Supply and Battery Backup              13

 

9. ITDL Front panel connectors, Accessories and Physical dimensions              14

 

10. Software Design              15

 

11. Result              20

 

12. Problems encounted              20

 

13. Conclusions              21

 

14. Complete circuit diagram of ITDL              22         

 

15. Complete PCB layout f ITDL              23

 

Reference               24

 

Appendix              25

 

 

 

 

Home ] Up ]

Send mail to wmecproject@lycos.com with questions or comments about this web site.
Last modified: July 13, 2002