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CONDITIONAL ACCESS SYSTEM CERBERCRYPT
Scrambler-converters:
TLS5001-4ASI
TLS5001-6TV
Operation principle
The system is based hardwarily on scrambler-converters, having an
embedded multiplexer, module for scrambling channels, QAM (QFDM)-modulator.
Scrambler-converters are controlled with CAS CerberCrypt which is
registered in DVB consortium and has its unique ID. It supports EPG
and NIT search.
It is possible to receive scrambled TV programs only using digital
TV receivers with installed software supporting this system and conditional
access card CerberCrypt.
The system has several levels of protection from unauthorized viewing.
Cards initialization is carried out by the network provider who creats
and recods into the cards the subscribers’ numbers and two 112-bit
digital keys which are stored in scrambler-converters. The keys are
defined by the provider while system installation.
Hardware
DVB-C converter is a specialized multifunctional device for converting
six analog TV programs or four digital ASI streams into DVB-C or DVB-T
signal. The converter enables to increase the number of channels and
improves the quality of programs transmitted through cable TV networks
as compared to analog broadcasting. Good noise-proof features provided
by the digital algorithms make it possible to use jammed frequency
ranges, the use of which is impossible for analog signals. It is possible
to use the converter along with other cable analog equipment with
simultaneous broadcasting in a single net of both analog and digital
signal.
The converter is designed to operate in the CAS CerberCrypt system
with conditional access cards.
The converter has a conformity certificate ÐÎÑÑ RU.ÌË04.Â00144.
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| TLS5001-6TV |
TLS5001-4ASI |
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| TLS5001 6TV. 6 analog composite
signals with stereo sound are supplied to inputs of the device.
Converter functions include conversion of these signals (MPEG-2
coders), multiplexing and modulation. Output signal (IF DVB-C
signal, 26.15-46.15MHz) is supplied to IF channel input of up-converter
of the cable head station. |
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TLS5001 4ASI. 4 digital
MPEG-2 streams are supplied to inputs of the device. Output
signal (IF DVB-C or DVB-T signal, 26.15MHz ~ 46.15MHz) is
supplied to IF channel input of up-converter of the cable
head station or to the terrestrial transmitter amplifier.
The converter makes it possible to release the remultiplexed
ASI stream from the BNC connector on the rear panel. HD signal
transmission is supported.
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Software
Software includes:
CerberCrypt Client program comprises all the necessary information
about each subscriber of the network, controls their subscription,
forms bouquets of TV channels, determines the status of each TV channel.
CerberCrypt Server program controls the work of up to 32 scrambler-converters.
The software enables connection of scramble-converters with the system,
changes digital coding keys and monitors status and operation mode
of each scrambler-converter.
Scrambler-converter parameters setup program makes it possible to
change some of their parameters: QAM modulation, IF signal level.
For 6TV DVB-C converters one can also change input signal (CVBS, S-Video),
system (PAL, SECAM) and volume for each channel.
Input stream processing program enables to analyze digital input
streams and to choose programs and their features in a stream.
Provider’s billing system (server) interaction
The software supplied in the basic variant does not have its own accounting
database as it is supposed to use the accounting system that the provider
already has. To ensure integration of CerberCrypt Client program with
the provider’s database it is necessary to create a special program.
All the necessary information and software for interaction of CerberCrypt
"Server" module with the accounting system of the provider
is supplied along with CerberCrypt system . The data transferred does
not contain any information concerning channels lock.
Technical parameters
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TLS5001 4ASI |
TLS5001 6TV |
Input signals |
4*ASI |
6*(CVBS+L,R Audio) |
Sound channels quantity per video channel |
- |
2 |
Input connectors |
4*BNC |
6*(BNC+2*TRC) |
Output signals |
IF (DVB-C), ASI |
IF (DVB-C) |
Output connectors |
F-type, BNC |
F-type |
Output signal level (IF) |
30 + 6dbmV |
30dbmV |
Output signal frequency (IF) |
26.15…46.15MHz |
26.15...46.15MHz |
Coding |
- |
ISO/IEC 13818 (MPEG-2) |
Input rate per channel |
- |
5.1Mbit/s |
Output stream (max.) |
40.5Mbit/s (QAM64) |
30.6Mbit/s |
Output symbol rate |
6.750 Msps |
6.375 Msps |
Modulation |
QAM 32, 64, 128, 256 |
QAM 64 |
General parameters |
Data port |
RS485 |
RS485 |
Power |
220V+20% |
220V+20% |
Power consumption |
<30Watt |
<30Watt |
Dimensions (19") |
480X45(1U)X210mm |
480x89(2U)x210mm |
Structural scheme of digital broadcasting cable network with CAS
CerberCrypt
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