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RE: Calling all IR experts...


  • To: <ukha_d@xxxxxxx>
  • Subject: RE: Calling all IR experts...
  • From: "Ian B" <Ian@xxxxxxx>
  • Date: Sun, 10 Mar 2002 15:01:20 -0000
  • Delivered-to: mailing list ukha_d@xxxxxxx
  • Mailing-list: list ukha_d@xxxxxxx; contact ukha_d-owner@xxxxxxx
  • Reply-to: ukha_d@xxxxxxx

>1) How likely is it that the IR signals the Kustom units use are
>compatible with the signals produced by HV / Comfort? i.e. is there
>a standard for passing IR signals?

There are several e.g. pwm, rc5, space modulated to name a few. Most
controllers can learn most of these. IR data is sometimes moved between A
and B using a protocol and then decoded prior to transmission. Look for
unidentified boxes with chips in at the end. If there is only an IR LED
then
it is raw data.

>2) If they are, could I splice into the IR data line, a connection
>from HomeVision or Comfort (thereby allowing IR to pass from the
>controller to amp as designed but also to 'inject' a signal at the
>amp)? - Did that make sense?

It makes sense but I have no idea.

>3) What testing should I do to make sure I don't shag anything up
>before trying this!?

The best thing is to gat a scope on the matter. There is no 'real' standard
I know of for transmission (i.e. voltages etc.) and it all depends on the
manufacturer.

Good luck

Ian



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