... is the main equipment CATV digital head-end, receiving DVB transport streams which come from coder, multiplier, DVB gateway, scrambler, ... 16QAM, 32QAM, 64QAM, 128QAM and 256QAM constellation modes. Supporting ASI and DS3 input and output PID filter, re-reflection, PSI ... . Real-time code steam monitoring. empty pocket filtering Providing ASI and DS3 input port and output port (optional); Supporting ...