.. -*- coding: utf-8; -*-

=======
 RS232
=======
.. contents::
   :local:

Pinout
======

Rx/Tx
RTS/CTS/DTR/DSR

Signal Level converts
=====================

MAX 232 is from an RS-232 serial port to signals suitable for use in TTL
circuit.

  http://en.wikipedia.org/wiki/MAX232

USB to COM chip
===============

PL-2303:

  http://www.prolific.com.tw/eng/products.asp?id=59
                about/overview
  http://www.prolific.com.tw/eng/downloads.asp?ID=23
                datasheet download page
  http://www.prolific.com.tw/eng/downloads.asp?id=31
                driver download page