The (Recommended Standard 232) is a standard for serial binary data signals connecting between a DTE (Data Terminal Equipment) and a DCE (Data Circuit-terminating Equipment). The RS232 standard describes a communication method where information is sent bit by bit on a physical channel.

Below links provides detail information about Serial and Pinout:

  1. http://www.lammertbies.nl/comm/info/_specs.html, this page provides information about introduction to specifications, bit streams, physical properties, and error detection.
  2. http://en.wikipedia.org/wiki/, this page from wikipedia.org contains detail information about serial scope of standard, history, limitations, role in modern personal computers, voltage level, connectors, pinouts, signals and cables, RTS/CTS handshaking, 3-wire and 5-wire , signal rate selection, loopback testing, timing signals, secondary channel and related standards.
  3. http://www.lammertbies.nl/comm//.html, included in this page explanation about serial layout, S232 serial pin assignment, RS232 DB9 to DB25 converter, RS232 serial loopback test plugs, RS232 null modem cables, Spy / monitor , Serial printer cables, and Yost RS232 on RJ45 standard.


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