Ecvv Trade
Chengdu Sochuang Electronics Co., Ltd.

China Manufacturer with main products: Multiplexer, Encoder, Ird, Modulator, Scrambler, Ts Player, Satellite Receiver, Digital Headend

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QAM Modulator

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Specifications

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:
Modulation Mode
16,32,64,128,256,1024QAM
Symbol rate
1~7Mbaud/s
Error-correcting codes
RScode188/204
Input data code rate
1.5~51Mbps
Channel Data Rate
20~56Mbps
MER
>33dB
BER
0
Input interface
2 ASI in(DVB standard)
RF Frequency
47~870MHz (agility  or fixed output)
Output LEV
>=115dBmV
Output LEV adjustable range
0-16 dB(0.5 dB stepping)
Impedance
75Ω
Output Return Loss
>=12 dB
General Features
Size
44mm*482*410mm
Environment
0 ~ 45(Operating);-20 ~ 80(Storage)
Power
220VAC±10%,50Hz,25W
Management
Network RJ-45 10/100 M
Keyboard + LCD
 
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
 
 
 
 
 

Service Process

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