Links

http://www.epanorama.net/links/pc_index.html
http://www.epanorama.net/links/pc_interface.html#serial
http://www.vision.net.au/~timotsc/null/nullmodem.htm
http://support.microsoft.com/kb/q142324/
http://vasc.ri.cmu.edu/old_help/Misc/Serial/serial.txt
http://www.tldp.org/LDP/lpg/index.html
http://www.delmar.edu/Courses/CIS415L/Lesson2.htm
http://www.google.co.uk/search?hl=en&q=python+module+serial+cable&meta=
http://py.vaults.ca/parnassus/apyllo.py/77689886
http://fab.cba.mit.edu/classes/863.04/people/arikan/index.html
http://en.wikipedia.org/wiki/RS-232http://en.wikipedia.org/wiki/Asynchronous_start-stop
http://en.wikipedia.org/wiki/HDLC
http://www.experts-exchange.com/Programming/Programming_Platforms/Linux_Programming/Q_20818626.html
http://en.tldp.org/HOWTO/Serial-Programming-HOWTO/
http://www.comptechdoc.org/os/linux/programming/c/linux_pgcserial.html
http://pyserial.sourceforge.net/
http://balder.prohosting.com/ibarona/en/python/uspp/uspp_en.html
http://docs.python.org/lib/module-asyncore.html
http://www.experts-exchange.com/Programming/Programming_Languages/Python/
http://www.faqs.org/docs/howtos3.html