Digital tv Broadcasting Equipment

SC-4144 QAM modulator&scrambler is one of the main equipment of cable digital TV head-end, it receive data from the encoder, multiplexer, DVB gateway, satellite receiver, video server and other DVB device, and make RS codes, convolution interleaving and QAM modulation, beside, it support 4 channel built-in scrambler,support 4 channel encyption CAS, it also support programs sorting,program name editing, PSI/SI editing,PID editing,filter,passthrough,etc. after muxing and scrambling, it output 4 channel RF signal. SC-4144 adopt a new integrated circuits ADV9789 with low-power consumption, high performance.

Features

. Meet DVB standard channel coding;

. Support full range of variable Symbol Rate and QAM mode;

. 8M cache, anti-burst stream;

. ECM,EMM message 

. Scrambing with CAS.

. Data filling function;

. Support IP data injection;

. Configurable PID filter, re-mapping, PSI, SI information update;

. Support NIT table inserts;

. Real-time transport stream monitoring;

. PCR correction;

. Fixed or variable frequency output;

. Provide RF output monitoring port (-20dB);

. Local and remote control;

. LCD display;

. High reliability design, stable operation.

. Support Annex-A (Europe).

Technical Specification:

 NMS software management

 P1: Modulator Setting:

P2: Multiplexing

P3: Scrambling:

P4: Edit NIT table

P5: PID Passthrough:

P6: PSI editing: