OEM Products, Head-end equipment

MPEG 2 кодер с ASI выходом ENC810ASI

Описание:

     MPEG-2 кодер Crypton ENC810ASI представляет собой функционально законченное устройство преобразования аналоговых сигналов в цифровой поток DVB. Имеет ASI выход, предназначенный для работы совместно с DVB модулятором. Основное применение ENC810ASI находит в головных станциях кабельного телевидения, сетях МИТРИС, MMDS и LMDS, в системах видеонаблюдения.

Возможности:

  • Один аналоговый вход. Видео и стерео звук преобразуются в DVB совместимый поток (MPEG2 видео, MPEG1 Layer 2 звук).
  • ТВ канал. Канал может быть настроен как ТВ канал (видео и стерео звук).
  • Цифровой ASI выход. С выхода устройства сигнал может быть подан на канальный модулятор, поддерживающий интерфейс ASI, на мультиплексор или другое устройство для дальнейшей цифровой обработки.

DNG910MSL CAS Crypton protected DVB DSNG system

DATASHEET

1. Contents

  1. Contents
  2. General
  3. Features
  4. Front and Rear view of DNG910MSL
  5. Block Diagram
  6. Technical specification
  7. Abbreviations

2. General

DNG910MSL is a CAS Crypton protected DVB DSND system.
High quality professional PAL decoder and high resolution stereo audio ADC provide digital video and audio signals to the MPEG2 encoder.

MPEG2 multiplexer and SI generator make SPTS stream that Directly come to the DVB-CAS Scrambler.

The QPSK modulator is designated for QPSK-modulation and input DVB stream processing by the noise protective cipher. Subsequently, the input DVB stream is converted into output L-band signal.

Modulator parameters

Parameter Value
QPSK modulation:corresponds to EN 300421
Input stream rate:1 – 50Мbit/с
Symbol rate:25 – 30Мsymb/s (spacing 0,125Мsymb/s)
Bandwidth:950-1950 МHz (two subbands which depend on device's version)
950-1500 МHz
1450-1950 МHz
Set-on accuracy rate: ±5кHz
Frequency tuning spacing: 1 Hz
FEC modes1/2, 2/3, 3/4, 5/6, 7/8
Output resistance:50 Ом
ConnectorSMA
Sorry, page is under construction.Плата MPEG-2 энкодера
ASI transmitter board

ASI transmitter board

ASI-interface transmitter. Asynchronous Serial Interface (ASI) is the most commonly used interface, with a constant transfer rate of 270 Mbit/s, load impedance of 75 Ohm and coaxial cable with BNC connector. ASI interfaces are mainly applied in professional DVB equipment: modulators, demodulators, multiplexers. Multi-purpose ASI interface allows connecting different types of devices produced by various manufacturers. All types of devices allow developing a particular customer- adapted decision for DVB-signals processing and transmitting. ASI transmitter is designated for employing in professional equipment as output interface when digital audio-visual information in DVB-MPEG2 is transmitted via digital channel.
This device is obsolete! Please click here for new equipment information
Crypton DTV server COD881ASI with QPSK modulator  (front view) Description:     Crypton DTV server COD881 ASI – is a multifunctional server for pay-TV services. COD881 ASI is a perfect solution for converting analog signals into DVB digital stream. ASI output is designed for joint operation together with DVB modulator.     In arbitrary order COD881ASI can scramble 8 digital TV-programs by aid of dynamic keys, which are unique for every program. Subscribers message system (SMS) allows having up to 16 million subscribers in aggregate for all of the eight channels. According to ETS-300468 specification COD881ASI inserts PSI and SI information into the stream.     Control and status monitoring of COD881ASI are performed by the operator's personal computer running “Crypton DTV Master” software. Communication media between server and computer is a regular TCP/IP network (100 BaseTX, UTP5 cable, RJ45 plug, can run directly and via active network equipment). There is no restriction in the quantity of network equipment.     Typical applications of COD881ASI are head-end stations of digital cable, MITRIS, MMDS- and LMDS networks.
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    COD 912 ASI - is a multifunctional server of digital television services. It is designed to operate in digital DVB and IPTV broadcast networks. The following functions are envisaged:
Equipment
for analog broadcasting     Specialists of "Crypton" Ltd., have developed a conditional access technology for analog broadcasting, that combines merits of inexpensive systems with analog processing of the video signal of the image (Sync Suppression, Chameleon systems and so on) and systems of advanced complexity with digital processing, as a result of what a time structure of the video signal of the image gets broken (Line Share, Line Cut & Rotate, Line Shuffle Technologies and others).

    The suggested Conditional Access System has a number of advantages: