Multiple devices responding to the same IR commands

[Tieske8]

Hi,

I'm considering using Girder and an IR transmitter, but I'm not sure whether it will solve my issue. Let me explain...

I'm having two amplifiers, both JVC, older stereo one and a new home cinema system. Because they are both JVC they respond to the same IR commands.

I would like to be able to control them individually. If I would use a single IR transmitter then the basic commands (power on/off, vol+/-) would have both devices responding. Which I don't want. This leads me to think I need two IR transmitters, one for each device.
The question comming up now is whether Girder can support 2 IR transmitters independently, or would it then still sent the same command to both transmitters?

al together 2 questions;
1) Can Girder handle 2 IR transmitters that are handled independently
2) What would be the best choice for the IR transmitters?

Thanks for your help!

[Treetop]

I use the USB-UIRT (http://www.usbuirt.com/overview.htm). This device supports up to 3 zones (the front blaster, and 2 from the rear jack).

You will also need to get a 1/8" Dual Mono Jack to 1/8" Stereo Plug Y-Adapter (http://www.radioshack.com/product/index.jsp?productId=2102691&cp=&sr=1&origkw=stereo+to+mono+adapter&kw=stereo+to+mono+adapter&kwCatId=2032058&parentPage=search) and a couple of Emitters (http://www.hometech.com/infrared/emitters.html#XA-282M)

There are other methods of IR zone control, but this is simple and effective for your application.

Also, make sure that the emitters are covered if the 2 stereos are near each other.

[Tieske8]

Thx for the quick response, but I'm still hesitating.

What I understood from these IR devices is that the primary (internal) emitter and the optional external emitters all send the same signal simultaneously. That would be fine if the target devices do not respond to each others commands. But in this case both my amplifiers would still get the same command and they would both respond, by for example switching-off.

So I cannot control them individually... but this is my thinking, I hope you can confirm that I'm wrong with this :)

[quixote]

The adapter is there to give you two zones from the jack in the back. You can select which zone you wish to send the signal to with the USB-UIRT plugin.

[Treetop]

http://home.comcast.net/~treetop22/pics/usbuirt_pic.bmp

This is the v3.3 plug-in.... from this thread: http://www.promixis.com/forums/showthread.php?t=7082&highlight=usb-uirt+zones

I'm guessing that its just as easy to assign zones with the newer plug-in designed for v4

[Tieske8]

Thx! That's the answer I was looking for.

USB-UIRT (http://www.usbuirt.com/overview.htm) is the one I need :)