Randman and All

I wish to do the same thing. Control my devices via RS232 for more reliable Macros and two way communication.

I have the following component that have RS232

Marantz SR-9300 THX Ultra2 Reciever
Sony DVP-CX777ES 400 disc DVD changer
Panasonic PT-AX100U LCD Projector

My other equipment does not have RS232 only IR.

My goal would be to have the TSU-9600 talk thru RS232 and know for a fact what imput I'm on in my receiver, what surround more, and such. My electric screen covers my equipment so I can't see them. Having two way communication will fiz all my issues.

If its not two way than jusy 100% realible hard wired communication will still be better than wondering did my RF signal go thru and such....

I use several long string Macors and sometime they done work and sometime they do. Its really annoying.