[mythtv] Current SVN DVB-S zapping problems (diseqc?)

Lukas Kasprowicz lukas.kasprowicz at online.de
Mon Aug 28 20:21:52 UTC 2006


Am Montag, 28. August 2006 21:15 schrieb Yeasah Pell:
> > [card1]------|---------------|
> > [card2]------| 8 ports in   |
> >                 --| 2 ports out |----(port 1)------- [universal LNB]
> >                 --| switch        |----(port 2)-------[empty]
> >                 --|---------------|
> > cards are connected to ports where i am _not_ able to switch if it has to
> > use 22kHz for switching low/high. These are only diseqc ports.
>
> I see. How does this switch decide which input to route to which output
> at any given time? (Forgive me for the basic questions, I'm not familiar
> with big multi-switches like this) I don't see how it can work if both
> cards get connected to the same LNB, since the cards will both want to
> supply a specific voltage, as well as a specific tone presence (to
> control polarization and band) -- and they'll conflict if they are
> connected to the same device (unless the switch disambiguates it somehow)

I do not know what it is doing, too but i think it operates similar to a 
network switch (maybe). Follow the link and you get the manual of the switch 
i am using. Hope it answers all your questions ;)

It is the Gigaswitch 11/8 i am using.

http://www.technisat.com/download/en/man/247.pdf


Lukas


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