be configured to operate with data in the 7 mhz 9 mhz range accordingly upstream fiber link 56 is used for upstream transmission from port 37 to the head end and the splitting of the upstream signals into analog and digital components occurs at the head end rather than at the mfn 6 as in the case of a conventional system as illustrated in fig1 and 2 it will be appreciated that a plurality of links 50 and 53 ports 51 and 35 and converters 49 and 52 are used for a n subscribers however only single components are represented in the diagram for clarity moreover a single a d converter may suffice for both docsis and legacy upstream signals depending on digitization quality needed frequency width needed and cost of the a d component s uplink fiber infrastructure provides more bandwidth capacity to facilitate upstream legacy support while an uplink fiber capable of one gbps or higher may incur higher cost than may be associated with a conventional upstream link that for example accommodates 100 400 mbps if legacy upstream support is desired a fiber supporting the higher bandwidth is preferable since the upstream signal sent from the mfn 6 to the head end 4 is digital the high bandwidth potential of fiber can be more advantageously used to provide higher upstream transfer rates than with a conventional dcmts that also transmits a separate digitized analog signal in the upstream signal turning now to fig5 a schematic diagram of the preferable network topology for implementing a hybrid dcmts system 58 with remote modulators is shown the mfn 6 of fig4 is shown coupled to head end 4 port 32 of mfn 6 receives analog broadcast signals on downstream link 59 downlink.