RE: Can some kind electronics bod help?

["Paul S. Gale" <groups@xxxxxxx>]

That's correct Frank. The wall controller (which is basically a
learning
remote) has an emitter and receiver. The emitter is primarily used to
teach other remotes the button codes. The receiver obviously sends IR
back to the amp.



Thanks for the diagram offer.



Paul.



-----Original Message-----
From: Frank Mc Alinden [mailto:armagh@xxxxxxx] 
Sent: 05 February 2003 10:08
To: ukha_d@xxxxxxx
Subject: Re: [ukha_d] Can some kind electronics bod help?



Hi Paul

        The opto i use on FirM for the
ir signal is H11L1 from RS
Components

Part number 585-292 (aussie catalogue) approx $8.00 each......

Just had a quick look through the Kustom manual....If im correct the
Kustom
Keypads KHS6640 have a built in ir repeater. ?? correct .........so the
ir
signal marked on the cat5 lead is ir tx  signal back to the Kustom
multi
zone amp.......
I will draw a schematic for 1 zone and email it to you direct.......

Frank

----- Original Message -----
From: "Paul S. Gale" <groups@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Wednesday, February 05, 2003 8:42 PM
Subject: RE: [ukha_d] Can some kind electronics bod help?


> Can you give me an example description or part number or something
for
> the opto - I can then have a look to see how much they are here.
>
>
>
> Also thinking about patching in IR to a zone that doesn't have a
wall
> controller fitted (master controller that controls all zones). Has
the
> same connection for a controller, it's just I'm not using one.
Would
the
> opto route still work i.e. not connecting across the existing
lines
but
> using it instead of a wall controller?
>
>
>
> Paul.
>
>
>
> -----Original Message-----
> From: Frank Mc Alinden [mailto:armagh@xxxxxxx]
> Sent: 05 February 2003 09:38
> To: ukha_d@xxxxxxx
> Subject: Re: [ukha_d] Can some kind electronics bod help?
>
>
>
> Hi Paul
>
> > Do I need to use an opto. The original poster used a simple
transistor
> -
> > will this not work as well?
>
> Im sure it would work but you need to know for sure what you are
> doing..Using the opto couplers will give electrical isolation
between
> the 2
> pieces of equipment....Two very expensive peices of equipment as
well
> ...
>
> Frank
>
> ----- Original Message -----
> From: "Paul S. Gale" <groups@xxxxxxx>
> To: <ukha_d@xxxxxxx>
> Sent: Wednesday, February 05, 2003 8:24 PM
> Subject: RE: [ukha_d] Can some kind electronics bod help?
>
>
> > Do I need to use an opto. The original poster used a simple
transistor
> -
> > will this not work as well?
> >
> >
> >
> > Paul.
> >
> >
> >
> > -----Original Message-----
> > From: Frank Mc Alinden [mailto:armagh@xxxxxxx]
> > Sent: 05 February 2003 07:25
> > To: ukha_d@xxxxxxx
> > Subject: Re: [ukha_d] Can some kind electronics bod help?
> >
> >
> >
> > Hi Shane
>
>                
On  the original post the guy mentions that the
ocelet
> > has
> > open collector outputs and that the Kustom system  wqs
looking for
5v
> > signal..So Paul has the same problem..if an opto is used ..Tie
the
> > collector
> > to +5v via say 100 ohm resistor and connect the emitter to the
zone
tx
> > line.....Some connection diagrams might help??
> >
> > Frank
> > ----- Original Message -----
> > From: "Shane Harrison"
<shane.harrison@xxxxxxx>
> > To: <ukha_d@xxxxxxx>
> > Sent: Wednesday, February 05, 2003 6:08 PM
> > Subject: RE: [ukha_d] Can some kind electronics bod help?
> >
> >
> > > See comments below
> > >
> > > > -----Original Message-----
> > > > From: Paul S. Gale [mailto:groups@xxxxxxx]
> > > > Sent: Wednesday, 5 February 2003 1:36 a.m.
> > > > To: ukha_d@xxxxxxx
> > > > Subject: RE: [ukha_d] Can some kind electronics bod
help?
> > > >
> > > >
> > > > Yes - it seems that the Kustom amp is based on 5V IR
signals
> > > > - how could I tell for sure without a scope? Would a
digital
> > > > multimeter give an accurate enough reading on the IR
lines?
> > > > (or should the IR output from the wall controller be
the same
> > > > voltage as the supply voltage?)
> > >
> > > If you are lucky and the Kustom input has an internal
pullup
> > > (essentially a resistor to the power rail) then the input
will sit
> at
> > > the power rail voltage when no signal is applied to
it.  If it has
> no
> > > internal pullup then pretty hard to tell with out scoping
the the
> > > existing IR signal being fed in.
> > > >
> > > >
> > > >
> > > > As both Kustom and HV seem to use 5V, should I just try
it
> > > > without any electronics? Given they're both 5V could I
do any
> > > > damage? Is all this talk of transistors not needed as
both
> > > > systems run at 5V?
> > > If the HV expansion board is open collector as Frank thinks,
then
> you
> > > can't really do any damage if you connect them
together.  However
> with
> > > open collector outputs (essentially it is a switch to ground
only,
> > > either the output is grounded or not grounded (floating))
you need
> > > something to "pull" the signal up to a positive
voltage when the
> open
> > > collector "switch" is not switched to
ground.  This can be an
> external
> > > resistor (say 10K) or if you are lucky the Kustom has
internal
> pullups
> > > as discussed above.
> > >
> > > HTH (and makes sense)
> > >
> > > Shane
> > >
> > >
> > > http://www.automatedhome.co.uk
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