Dual tuner dvb-s2 on single CI slot? (3 Viewers)

[Spooky]

mm1352000 on the wiki it says Ciné S2 CI module can only descramble 1 channel at a time. Is it with new module of CIné S2 V3 ?

To be very clear: *each DD tuner* can only decrypt one channel at a time. However, the CAM is shared by all connected tuners so multiple channels on a single transponder can be decrypted with a single CAM *if you have more than one tuner*.

The Cine S2 has 2 tuners. Each tuner can decrypt one channel. This means you can decrypt 2 channels simultaneously... but you need to use both tuners to do this even if the channels are on the same transponder.

Hm, but then maybe the wiki entry is mis-leading, since it states the CI module itself can only decrypt one channel at a time.

 

[mm1352000]

Hm, but then maybe the wiki entry is mis-leading, since it states the CI module itself can only decrypt one channel at a time.

The wiki is written from the perspective of tuners, not CAMs. I don't find it confusing, but if you do then other people will too. We could add a note saying that Digital Devices tuners allow CAMs to be shared - would that clarify things for you?

mm

 

[DjeC64]

I agree it needs to be modified. I was confused as well.

 

[Leon_Gjerland]

I have just installed DD Cine S2 (V6), CI Module (AlphaCrypt CAM/Conax), newest drivers (Version 2.3.0.47), MP 1.2.1, Win7 32bit.
Configured CI-module for use by both tuners.
Enabled CAM and set to decode 2 channels simultaneously for both tuners.

I then tuned to ch1 at transporder "A" and started recording,
then to ch2 at transporder "B", started recording,
then to ch3 at transporder "A", started recording,
and finally to ch4 at transporder "B", started recording.
All channels were encrypted.

I have just tested recording four channels for about 10 minutes, but all channels recorded just fine.

The Cine S2 replaces a Terratec PCI S2/CI, and so far I am very satisfied with the result.
- switches channels in 2-4 sec
- PowerSheduler++ works at last
- No problems with wakeup from powersave (S4/Hybrid)

Cine S2 V6 - Digital Devices Distribution UG (haftungsbeschränkt)
CI Modul - Digital Devices Distribution UG (haftungsbeschränkt)
TV Karten Digital Devices - Digital Devices Distribution UG (haftungsbeschränkt)

 

[mm1352000]

Hi Leon

Have you got logs to show for your test? I'd be very interested to see them. My information comes from morpheus_xx, who added support for these cards...

mm

 

[DjeC64]

This is great Leon!

Did anybody CAN report with Astoncrypt dual? Tv Vlaanderen or Canalsat anyone?

I just bougth à cines2 and i Will report my tests when i havé it.

 

[mm1352000]

One other comment: I have a patch that adds support for DD cascaded CAMs (multiple CAMs linked to a tuner) that also needs to be tested. I'd be happy to compile a provide a patch for anyone that would like to test.

 

[Leon_Gjerland]

I am sorry to say that my previous testing must have been incomplete :-(

I have done more testing on decrypting multiple channels on same tuner on DD Cine S (v6), and the results are as follows. (See attached log at 20:56, 21:39 a,d 21:54)

The recordings show up in Recorded TV with correct length, but the content is truncated when recording number 2 on the same transponder is started.

I have also tested with a second client, and tuned to a channel on the same transponder as the channel watched at the "main pc". Then the picture freezes on client 1.

 

[DjeC64]

How many channels your CAM can descramble simultaneously? Also there may be à limitation imposed by the provider.
Could you at least decode 2 channels on different transponder at the same time? Do you need to set the CAM limit to 1 per tuner? Thanks for your inputs.

 

[mm1352000]

Hi again

LeOn: unfortunately this is what I expected. The CAM can be shared by multiple tuners, but each tuner can only decrypt one channel at a time.

DjeC64:

Also there may be à limitation imposed by the provider.

The provider has no way that I know of to enforce any limit in our software. Maybe on their STB, but not through MP or the CAM.

Could you at least decode 2 channels on different transponder at the same time?

When both tuners are used, this would be possible (as long as the CAM can do it).

Do you need to set the CAM limit to 1 per tuner?

Setting the CAM limit to 1 for each tuner would be the correct thing to do for DD tuners.

mm