General Instrument DSR-4800 Series, Руководство по эксплуатации

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The DSR-4800 Series
DSR-4800 Operating Manual 4
The DSR-4800 performs demodulation and FEC decoding of all standard
DigiCipher
®
II symbol and convolutional coding rates, at information rates
up to 40.46 Mbps. It also performs demodulation and FEC decoding of all
standard DVB convolutional coding rates, at information rates of 3.25–45
Msps. Within the resulting transport stream, a single DigiCipher
®
II service
designated by the user can be decrypted.
The DSR-4800 will automatically tune to of four L-band inputs based on the
Virtual Channel Tables sent from the UCS. The unit will use the Virtual
Channel Tables for tuning between services.
THE DSR-4801
The General Instrument DSR-4801 is a more economical version of the full-
featured DSR-4800 designed for the studio monitoring, video processing and
satellite turnaround markets requiring 4:2:2 digital video output.
DSR-4801 receives both HD and SD signals. SD transport streams can be
processed at 4:2:2 P/ML and 4:2:0 MP/ML decompression.
The unit receives QPSK modulated signals at L-band frequencies of 950 to
2150 MHz through one of four input ports.
The DSR-4801 performs demodulation and FEC decoding of all standard
DigiCipher
®
II symbol and convolutional coding rates, at information rates
up to 40.46 Mbps. It also performs demodulation and FEC decoding of all
standard DVB convolutional coding rates, at information rates of 3.25–45
Mbps. Within the resulting transport stream, a single DigiCipher
®
II service
designated by the user can be decrypted.
The DSR-4801 will automatically tune to of four L-band inputs based on the
Virtual Channel Tables sent from the UCS. The unit will use the Virtual
Channel Tables for tuning between services.
The lack of a full-feature VBI board, ASI output and Ethernet control
distinguishes it from the DSR-4850.
THE DSR-4810
The General Instrument DSR-4810 includes all features of the DSR-4800
with the addition of video synchronization capability across multiple DSR-
4810 units. The unit will accept a primary and secondary video input
reference and synchronize the output audio and video to one of those
references. It will also provide a video output reference for other units to use
as a synchronization reference.