... Digital TV headend equipment4 IN1 CI TS-Receiver 4 IN1 CI TS-Receiver supports 4 tuners and 2 ASI as ... mappingNetwork management SupportSpecificationsDVB-C QAM DemodulationInput Symbol Rate 1 — 7MS/s (PAL), 1 — 6MS/s (NTSC)Constellation 16/32/64 ... 8 MHzFFT Mode 2K/8KGuard Interval 1/4, 1/8, 1/16, 1/32, offFEC Code Rate 1/2, 2/3, 3/4, ... SCPC or MCPC)Rolling off Factor 0.35FEC Code Rate 1/2, 2/3, 3/4, 5/6, 7 ...