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UNIX for Dummies Questions & Answers

Serial Lines Explained

 
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Top Forums UNIX for Dummies Questions & Answers Serial Lines Explained
# 8  
Old 01-04-2015
This gives a fair insight on the RS232 port(s).

RS-232 - Wikipedia, the free encyclopedia

Note the voltage levels:-

RS-232 - Wikipedia, the free encyclopedia

For low transfer speeds, (usually up to 9600bps on recent(ish) gear), data blocks can be sent without handshaking.
 
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