... isolator: Adopts time-division technology(TDM) as same as CMTS Reduce return accumulated noise Burst mode Summarize NIS2000 noise isolator ... . It adopts time-division control technology(TDM) as same as CMTS,use “burst” mode to “open” or “off” simultaneously with CM ... , so that allowing only one NIS2000 port to communicate with CMTS head-end at any given time, greatly improved the intrusive ...