[vdr] Re: [PATCH] AC3overDVB 0.1.2

["Dr. Werner Fink" <werner@suse.de>]

On Thu, Feb 06, 2003 at 07:02:23PM +0000, Stefan Huelswitt wrote:
> On 06 Feb 2003 "Dr. Werner Fink" <werner@suse.de> wrote:
> > On Thu, Feb 06, 2003 at 05:39:35PM +0000, Stefan Huelswitt wrote:
> >
> >> Really?
> >> I thought the DVBs has a standard coax spdif out (talking about a
> >> rev 2.1 card). And my receiver probably has a standard coax spdif
> >> in, too. Why not a direct connect?
> > 
> > The difference is 5.0 V to 0.5 V signal level (Consumer S/P-DIF
> > versus Professional  AES/EBU) ... for the S/P-DIF in of my C-Media
> > no problem, but for a standard A/V receiver I wouldn't do that.
> 
> Sure that the DVB 2.1 card uses TTL level. The manual (actualy a
> single addon page) states that it's S/PDIF out. From the manual
> below, this would mean non-TTL, or not?
> 
> If the DVB card would provide a potentional dangerous TTL level
> coax out, wouldn't there be a clear warning in the manual?

Which manual do you have?  Is there an official manual with description
about J2?  Never seen that.  In my manual for DVB-S 1.3 there is
something about

   `future use'

... OK for late cards with official S/P-DIF support I guess that the
signal level around 0.5V

> 
> My receiver manual doesn't states anything about signal levels.
> 
> As i'm using this receiver since over 2 year with the digital out
> of the card, I thing he doesn't matters if it's really TTL level.

Maybe your receiver can handle it.  Nevertheless I wouldn't try this
with mine ... and to have the SetTopBox ^H^H^H PC disconnected from
my receiver I'm using an optical S/P-DIF connection.

       Werner


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