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1 About Data Source
Data Source | Program Number | Mark |
CVBS Program | 40 | 40 program from local |
2 Device Involved
Data Source | Function | Mark |
NDS3208A SD Encoder | CVBS SD Program | Input: 8 CVBS Video and 8 audio, 1ASI Output: ASI and IP output Support MPEG2 Encoding |
NDS3712 Multiplexer | ASI Signal Distribution | Input:8 ASI Input Output: 2 ASI and 2 IP output Support Multiplexer and Scrambler Function |
NDS3401A QPSK Modulator | ASI Convert to QPSK | Input: ASI Output: QPSK Modulation |
NDS2527 Transmitter | Wireless Transmission |
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3 Device Number Count:
QPSK output Part
Suppose each frequency can transfer 38Mpbs. And each SD MPEG2 program take 3.5Mpbs.
The number of SD MPEG2 per frequency=38/3.5=10.85=10 Program
The frequency needed for SD MPEG2 program=40/10=4 frequency
Data Source Part
NDS3208A Number=40/8=5 Piece
Total Device Number:
Hardware | Device | Piece |
NDS3208A | 5 | |
NDS3712A | 2 | |
NDS3401A | 4 | |
NDS2527 Transmitter | 1 | |
Software | CAS | 1 |
EPG | 1 | |
SMS | 1 | |
NMS | 1 |
