title: can't read from SerialPort
body: <p>I'm trying to read a message via serial port (plugged in a RS-422 to my computer by USB)</p>
  
  <p>The problem is that i have 2 cables of this type.</p>
  
  <p>One is a USB straight to 422 and the other one is a usb-RS-232 cable with a RS-232 to RS-422 adapter.</p>
  
  <p>I've installed all the drivers.
  I write the line: <code>m_Pod.read(response, 0, 1000);</code> where <code>m_Pod</code> is the SerialPort object and <code>response</code> in the byte[] to save the message read.</p>
  
  <p>This line is in an event that if data is received, so I read the message.</p>
  
  <p>The first connector works fine, and I read the message when the event occurs.
  The second connector, however, doesn't work. The event doesn't occur.
  If I try to read the message manually, I get a random number (63), instead of the long message I'm supposed to.</p>
  
  <p>This is a picture of the second adapter:
  <a href="http://oi50.tinypic.com/34nh4kz.jpg" rel="nofollow">http://oi50.tinypic.com/34nh4kz.jpg</a></p>
  
  <p>On the right is the USB to RS-232 and on the left is the RS-232 to RS-422.</p>