What is the difference between TTL RS 232 and RS 232?

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Tags

1. #actually
2. #already
3. #interface
4. #difference
5. #rs232
6. #volts
7. #polarity
8. #standard
9. #ports
10. #drops
11. #majority
12. #connect
13. #serial
14. #compliant
15. #scanners
16. #although
17. #practice
18. #defines
19. #signal