1.3 What is common interface? 7
1.3What is common interface?
Some broadcasts are scrambled so that only paid subscribers can enjoy them. Scrambled services can only be viewed with a Conditional Access Module (CAM) and a subscription card belonging with the scrambling system.
Common Interface (CI) is an interface for condi- tional access modules. The front of the digital receiver has two common interface slots.
To watch a pay service, you should take the fol- lowing steps:
1.Purchase a conditional access module and a subscrip- tion card for the pay service you want to watch.
2.Insert the subscription card into the conditional access module.
3.insert the conditional access module to a common inter- face slot on the front of the digital receiver.
To view the information about the module and subscription card inserted to the digital re- ceiver, select the Information > Common Interface menu.
