With the rise of digital broadcasting, protecting content from unauthorized access has become increasingly important. This is why many TV providers, whether they are satellite, cable, or terrestrial, encrypt content using Conditional Access Systems (CAS).
A common method used in this process is the Common Interface (CI), an interface that allows Conditional Access Modules (CAM) to connect to the DVB receiver and decrypt protected channels. Decrypting channels with an External DVB-CI adapter provides a flexible headend architecture by separating the receiving and processing parts.
Create MPTS with required channels in the input address for each channel you should append option
cas - so that astra passes everything necessary for decoding. For instance:
Create New Adapter in the Astra Web Interface with the
CI value in the
Virtual field. Save adapter settings by clicking the Apply button
Name - name for Adapter
ID - unique adapter identifier. You may leave it blank, the system will generate an id, when you save the adapter
Virtual - Virtual Adapter type. select the
Adapter - number of the CI adapter in the system
Stream ID - stream identifier with MPTS. it is an ID value of MPTS created on first step
CI Device - number of the device on the CI adapter. Default:
CI Bitrate - TBS CI bitrate in MBit/s. Default:
70. For DigitalDevices bitrate could be defined in the driver settings
CA Delay - delay, in seconds, before sending channel information to the Conditional Access Module. Default:
CI adapter number could be found with command:
find /dev/dvb/ -name ca*
For example result will be:
5 - CI adapter number
0 - device on the CI adapter
Now you can click the Scan button.
Select the required programs and append them by clicking on the Apply button.
CI+ modules only for consumer use and don't supported by the External DVB-CI adapters
The number of programs (channels) that CAM may descramble simultaneously, depending on CAM manufacturer and/or model
If you need to check CAM menu to get some additional data about Conditional Access Module or SmartCard, you may use
gnutv digital tv utility. Launch:
gnutv -adapter N -cammenu
Where N is a CI adapter number.