[mythtv-users] directly driving an STB via a "remote extender" input

[Brian J. Murrell]

On 12-03-12 10:49 AM, Mike Perkins wrote:
>
> It sounds like a good idea, but in almost all cases you will need to provide DC 
> isolation between the two boxes, because of the way modern power supplies 
> function and the possibility of earth loops.

:-(

> The ideal way to do this is with an opto-isolator, which is... a LED and an 
> opto-receiver placed face-to-face...

Sure, if you can source all of that easily enough locally.  But the
reality is that living in a smaller city in Canada means having to buy
something + shipping + duty/taxes + customs broker fees == a lot of
money for stupidity.  On such smaller items, usually the "fees" are more
than the item.  Everybody wants to put their hand in my pocket.

> which is exactly what you started with in 
> the first place.

Yes, I know.

> The only thing you might gain is that the components are 
> shielded from light interference.

And the parts for such are sourceable locally fairly easily.

Thanks for the insight though.

Cheers,
b.

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