Overview:
SC-4101 QAM modulator is one of the main equipment of cable digital TV headend, receiving data from the encoder, multiplexer, DVB gateway, scrambler, video server and other equipment’s DVB transport stream, and make RS codes, convolution interleaving and QAM modulation channel processing, RF output. Use a new generation of integrated circuits BCM3034, low-power, high index.
Features
. Meet DVB standard channel coding;
. Support full range of variable Symbol Rate and QAM mode;
. 8M cache, anti-burst stream;
. Data filling function;
. Support IP data injection;
. Configurable PID filter, re-mapping, PSI, SI information synchronization update;
. Support NIT table inserts;
. Real-time transport stream monitoring;
. PCR correction;
. Fixed or variable frequency output;
. Provide ASI and DS3 (Optional) Enter interface;
. Provide RF output monitoring port (-20dB);
. Local and remote control;
. LCD display in Chinese and English, easy and flexible to operate;
. High reliability design, stable operation.
. Support Annex A(Europe) and Annex B(America) .
Technical Specification:
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Modulation Mode
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16,32,64,128,256,1024QAM
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Symbol rate
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1~7Mbaud/s
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Error-correcting codes
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RScode188/204
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Input data code rate
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1.5~51Mbps
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Channel Data Rate
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20~56Mbps
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MER
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>33dB
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BER
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0
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Input interface
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2 ASI in(DVB standard)
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RF Frequency
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47~870MHz (agility or fixed output)
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Output LEV
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>=115dBmV
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Output LEV adjustable range
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0-16 dB(0.5 dB stepping)
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Impedance
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75Ω
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Output Return Loss
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>=12 dB
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General Features
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Size
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44mm*482*410mm
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Environment
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0 ~ 45(Operating);-20 ~ 80(Storage)
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Power
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220VAC±10%,50Hz,25W
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Management
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Network RJ-45 10/100 M
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Keyboard + LCD
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Network Management:
P1: DVB-C Modulator-parameter setting
P2: DVB-C Modulator-edit NIT
P3: DVB-C Modulator-PID passthrough
P4: DVB-C Modulator-PID filter
P5: DVB-C Modulator-edit PSI
P6: DVB-C Modulator-monitor