Author Topic: RI (Remote Interactive) - bidirectional? - direct cable support?  (Read 1845 times)

Lexje

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Hi everyone,

After a lot of searching I'll just post the question:
Quite some receivers and other electronic apparatus have some sort of IR connexion jack at the back. Often they even have input and output. Specifically Onkyo have what they call RI (Remote Interactive) - it also appears that this standard has been extended to cover HDMI connexions as well. Apparently this type of "connexion" seems to support two way communication to some extent.

My question:
Can anyone confirm it would be possible to connect a IT blaster exit with forementioned IR input jack (output (?)) and directly control such component, instead of sticking a IR blaster on the IR-eye?
I also wonder if any software exists (linux or win) that would be able to visualize the command sequences travelling over the cable connexion?

If yes, I feel this may greatly improve control of such a component with LMCE  ;).

Thanks for your input,

Erwin

colinjones

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Re: RI (Remote Interactive) - bidirectional? - direct cable support?
« Reply #1 on: April 26, 2009, 07:19:33 am »
I've never seen one with an "IR" connection at the back, are you sure this is IR? It doesn't really make much sense. Unless it is actually another IR window/eye then it isn't actually IR at all! Are you sure it isn't serial, or even SPDIF? What does it look like? Post a picture link here....

tschak909

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Re: RI (Remote Interactive) - bidirectional? - direct cable support?
« Reply #2 on: April 26, 2009, 07:40:53 am »
These connections are often the raw IR pulses sent so that they can be carried by wire, and may be possible to plug directly into a USB UIRT. Even if not, with some electronics knowledge, the signal can be adapted to the appropriate voltage levels.

-Thom

Lexje

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Re: RI (Remote Interactive) - bidirectional? - direct cable support?
« Reply #3 on: April 26, 2009, 12:41:26 pm »
Okay Guys, thanks for the confidence :-) but most of all thanks for looking into this.
Here are a couple of pictures, one is taken from the manual of the Sony STR DA 5400 ES http://pdf.crse.com/manuals/3875810111.pdf, the other one is from an Onkyo TX-STR876 and one from my elder TX-DS939 (The TX-DS939 documentation also mentions Xantech in conjunction with mulitroom).
Also quite often there is a 12V trigger jack, not 100% sure what it's for, but I think you can trigger power up to compatible components such as TV or projector.

There's another related subject I'd like to mention here: Before setting out to buy my first LCD (for LMCE purposes) I did extensive digging into the RS232 capabilities of LCD TV's on the market. I was interested in e.g. Sony Bravia and Phillips because they stood out for picture and color quality. I found that the US high range models of the Sony XBR range differ from their EU couterpart in that the EU models were 98% identical, but they missed the RS232 port. I got in touch with Philips to get some explanation (for the Philips models) and was told that USB was the next generation, and, USB should be capable of handling the same signals as RS232, I also found a specific USB / RS232 converter that might work in this case (I have a link somewhere...) I also found for the Sony counterpart, that "there seems to be a way to control these LCD TV's via USB in "hotel mode"....(No more detail)

This made me think that perhaps it should be possible to transmit RS232 commands over USB or the case being direct over the IR blaster cable connexion...

Lexje

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Re: RI (Remote Interactive) - bidirectional? - direct cable support?
« Reply #4 on: April 26, 2009, 03:08:08 pm »
Surely people must have been here before, found some reference material from slimdevices & squeezebox...
Use IRblaster to control power, input, volume of Marantz receiver? Remote input jack? http://forums.slimdevices.com/showthread.php?p=361209
IRBlaster => WireBlaster? http://forums.slimdevices.com/showthread.php?p=128510#post128510
squeezebox wiki about IR Blaster http://wiki.slimdevices.com/index.php/IRBlaster

It also references to the Creston SIMPL Windows Primer.

All seems to boil down to separating signal carrier modulation frequency fro pure remote codes...
I guess Thom pointed in the right direction.

Reported to work on Yamaha and Marantz...
http://wiki.slimdevices.com/index.php/IRBlasterDirectLink

Seems also Hari has been there:
http://forum.linuxmce.org/index.php?topic=2813.0

Could one of the guru's confirm whether this would possibly also apply to LMCE?
SqueezeCenter (SlimServer) development http://www.gwendesign.com/slimserver/dev_hard_and_software.htm#irblaster

« Last Edit: April 26, 2009, 03:16:17 pm by Lexje »