SC-4164 QAM modulator&scrambler is one of the main equipment of cable digital TV head-end, it receive data from the encoder, multiplexer, DVB gateway, scrambler, video server and other DVB transport stream, and make RS codes, convolution interleaving and QAM modulation, beside, it's built-in a scrambler which can exchange ECM/EMM message with CAS, and do scrambing,output 4 channel RF signal. SC-4164 adopt a new integrated circuits ADV9789,it has low-power consumption, high performance features.

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

P2: Multiplexing

P3: Scrambling

P4: EDIT NIT table:

P6:  PID passthrough

P7: Edit PSI table: