... input,E1* N input (N=1,2,3,4),DS3/E3 input,GPS clock input (10Mz, 1pps), DVB-C RF ... S RF input ,as well it has ASI ,DS3/E3 loop-output.Abundant video and audio output are available: support ... /EBU audio outputIt supports various interface converting: supports DS3/E3 to ASI,E1*N to ASI,IP to ASI, ... and output. Supports two channels independent ASI, E1/E2/E3/DS3 input, and each one has its own loop output ...