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3 Installation
Caution
Before installing or changing a module, switch off the head-end station or
unplug the power cable from the mains power socket.
Take precautions to prevent static discharge when working on the device!
• Open the housing of the head-end station according to the instructions in
the STC 160 assembly instructions.
3.1 Retrofitting a CA module
The digital module is equipped with a common interface module (CI). It allows
you to connect a CA module for various encryption systems and service provid-
ers. Encoded channels can only be decoded with a CA module suitable for the
encoding system and the corresponding smart card. The smart card contains all
the information for authorisation, decoding and subscription.
Caution
– Check with the distributor or manufacturer of the CA module to be
used to ensure that it is suitable for the reception of 2 channels.
–
The HDC 460 CI AV module‘s hardware and software have been thor-
oughly prepared and tested.
–
Any changes made by program vendors to the structures in the program
data might impair or even prevent this function.
– When working with the CA module, please read the corresponding
operating manual from the respective provider.