MPEG2 Encoder COD882ASI

MPEG2 encoder Crypton COD882ASI is a multifunctional pay TV service server. COD882ASI is a functionally complete device for converting analog signals into digital MPEG2 multi-program transport stream (MPTS), which, if necessary, the organization of conditional access in the broadcasting network can be scrambled with the organization of subscriber management using the built-in CAS Crypton conditional access system. The device provides a mechanism for introducing the necessary service information, DVB EPG, NIT, TOT, TDT, CAS Crypton service messages. The stream formed in this way and ready for broadcasting is sent in the form of DVB ASI signals to a DVB modulator, IPTV streamer or other device for further distribution in the user network

The device has an ASI output designed to work in conjunction with a DVB modulator. The system has 8 digital TV programs, which can be randomly scrambled with dynamic keys unique for each program. The custom messaging system is designed to support up to 16 million subscribers in total for all eight channels. This device is in accordance with the ETS-300468 specification.

Mode control of each of the 8 MPEG-2 encoders, CAS Crypton subscriber service, loading of service tables data and other settings are made by the DTV Master program from the Crypton Software Suite integrated software package. The package also includes a set of utilities for generating NIT and EPG tables, automation of customer service management, etc

The communication medium between the server and the control computer is a usual TCP / IP network (100 Base TX, UTP5 cable, RJ45 connector, active network equipment). There are no restrictions on the number of devices in the network

The main application of COD881ASI is in cable TV headends, IPTV, MITRIS, MMDS and LMDS networks

Features

• Eight analog inputs. Eight analog programs (video & stereo audio) are transformed into one digital multi-program transport stream (MPEG2-video, MPEG1 Layer 2sound)
• Different video/audio stream bitrates. It’s possible to set up different video and audio bitrates individually for every of the channels. Flexible channel settings let you employ your frequency resource efficiently. Dynamic programs usually require more bitrates but slow picture changes need less bitrates with no significant loss of quality.
• Constant or variable MPEG2 encoder modes. You can chose constant or variable bitrates MPEG2 encoder mode depending of the picture quality or dynamics requirements. Usually variable bitrates is more efficient for fast changing events such as sports or music video programs
• Video filter. You can use different bandwidth video filters. That feature can help you to save your frequency resources if the noisy input signal must be used.
• TV and radio channels. Each programm can be chosen to be a TV (video and stereo audio) or a radio (stereo audio only)
• АвSwitching off the programs. Every program data can be independently removed from the output multiplex if by some reason you may need it. No other program data will suffer from such a switching off/on actions.
• Independent change of program settings. Independent from other programs settings change mechanism sometimes is required during long time nonstop broadcasting. Such settings changes do not affect other programs changes.
• Conditional access. You may arrange Conditional access to each of the programs in accordance with DVB-CAS (ETR289). Subscriber management is provided in accordance with DVB Symulcrypt technology and uses CAS Crypton data scrambling and synchronization mechanism.
• DVB EPG. В устройстве предусмотрен механизм внедрения таблиц электронного телегида согласно EN300468.
• DVB EPG. The device is able to inject DVB-EPG tables in accordance with EN300468. It provide you with an easy mechanism to arrange electronic TV program guide for your network.
• TOT, TDT. TOT and TDT tables let you support you network time services.
• DVB-S output . Completely multiplexed and prepared for broadcast MPEG2 MPTS is fed to the input of the embedded DVB-S modulator that output L-band(950-1750 MHz) upconverted signal.
• TCP/IP control. All crypton devices along with host PC can be combined in one Ethernet network. TCP/IP network protocol is used to control the devices from a host PC.
• Reliable software. Crypton Software Suite (CSS) is a set of programs and utilities that a network operator can use for easy management of all the services broadcasted with Crypton equipment

Brief description of the main blocks

• MPEG2 Encoder. MPEG2 Encoder module converts CVBS video and stereo audio signals into MPEG2 video and MPEG1 layer 1,2 complient audio digital streams.
• DVB Multiplexer. Eight simultaneous Digital Video program streams along with injected Service Information(SI) and CAS Crypton subscriber management data are multiplexed in a single MPEG2 Multi Program Transport Stream(MPTS).
• DVB Scrambler. DVB-CAS(ETR-289) scrambler is able to simultaneusly(CWs are independent for each program too) encrypt each of the programs in the output TS.
• DVB SI Injector. DVB SI Injector provide output TS with PAT, PMT tables complient to ISO/IEC13818-1 and additionally SDT, NIT, TOT, TDT, EIT table according to ETSI EN 300468
• CAS Crypton SMS Generator. CAS Crypton SMS Generator provides the output TS with propper subscriber control massages, to arrange conditional access to your network Digital TV programs and reliable CAS synchronization mechanism.
• SECURE MODULE. Secure module protects the device secret data from external intrusion and provide CAS Crypton safe and reliable operation.