i2c and power connectors 1912 the side view shown in fig1 b illustrates the connectors 1913 that connect to mates on the line card in the preferred embodiment this is implemented using complementary pairs of push on mating including slide on and snap on and preferably self aligning coaxial connectors fig2 a and 20b demonstrate different stages of assembly fig2 a shows a line card with no if to rf module while fig2 b shows an if to rf module mounted on the line card of fig2 a the if to rf module is separately physically retained an alternate embodiment of the if to rf module shown in fig2 provides electrical connection through cables this latter embodiment reduces component costs at the expense of increased time and labor to accomplish the interconnection of the if to rf module with the line card to minimize the need for technician performed channel adjustments the invention incorporates circuitry that enables the channel assignments to be programmed dynamically based on internal computations or instructions from the head end thus the channels assigned to an individual if to rf upconverter and its associated upstream digital demodulator can be altered dynamically for noise abatement or other reasons.