What is Common Interface?
- Common interface (CI) is an interface used in DVB receivers.
 - Scrambled channels can only be viewed with a CA module suitable for the encoding system and the corresponding smart card.
 - Your television is equipped with a Common interface slot into which CA modules from various providers can be inserted.
 - You can insert the provider’s smart card into the CA module in order to enable the encrypted stations you want to see.
 - Your TV supports CI+1.4.