View single post by ident

Posted: Saturday Mar 14th, 2009 06:27 am

Joined:	Wednesday Aug 9th, 2006
Location:	Singapore
Posts:	3493
Status:	Offline

If you connect all the pins together, the transmit pins wil be shorted together and will corrupt the transmission. The switch allows you to monitor each direction but not both at a time. More sophisticated circuits may allow you to see both at a time
Otherwise you can use two Rs232 ports to see both sides using two windows
A useful device called a breakout box is shown here http://www.winfordeng.com/products/brktd9.php useful for experimentation purposes

Close Window