TechniSat SkyCable QPSK/DVB-T CI TWIN - Handbuch (Seite 48)

48
EN
2 Description
2.1 TechniNet BS4 (0000/5960) base unit
The TechniNet BS4 Professional is a base unit that accepts SkyCable TWIN cards for
professional satellite signal processing. The eight slots for eight TWIN cards, professional power
supply with safety features, and numerous connection options enable this head station to fulfil
every conceivable usage scenario.
The inbuilt 4/16 multi-switch saves expensive internal cabling in the base unit and provides four
fully-functional satellite inputs that generate both 13/18V and 0/22 kHz signals for controlling
the LNB. This gives the receiver cards unlimited access to all four IF levels. Naturally, the system
also has inputs and outputs for SAT IF signals, enabling these signals to be distributed from one
base unit to another in cascade mode
.
Image: Block diagram for TechniNet BS4 base unit
This top-quality switching mode power supply with constant ventilation ensures that sufficient
power is available and protects against high temperatures and current loads. 3 temperature-
controlled fans are incorporated in the housing to improve thermal stability for the components
by removing the hot air from the housing.