Cable lines can support both your Internet connection and cable television programming without much of a noticeable loss in performance for either component. And with the help of a high quality cable splitter, you can run a single cable to the modem and. A cable box, also known as a set-top box, acts as a crucial intermediary between the cable signal provided by your cable service provider and your television. It acts as a translator, converting the digital signals from your computer into analog signals that can travel along these cables. On the other hand, a cable box is. The “straight line” distance between the point of entry of the cable (very close to the existing point of entry for the copper wire) and my preferred ONT location is approx 2metres, although the cable route will require approx 8 metres of cable (skirting board run and doorway). But if the cable box lacks an ethernet port, the opposite is true. Possible to connect outside OTA to cable junction box and supply ALL existing TV cable outlets in the house with service? I have an existing Direct TV satellite dish mounted on a concrete reinforced pole from the previous homeowner.