Patent ID: 7088921
Filing Date: 2006-08-08
Classification: H04J,H04Q

Abstract:
1. A data communications system comprising: an outside plant, the outside plant including a distribution fiber, a splitter and a plurality of drop fibers; a head-end, the head-end further comprising an Ethernet adapter circuit and being coupled to the splitter via the distribution fiber; a first network unit, the first network unit being coupled to the splitter via a first of the plurality of drop fibers, wherein the first network unit receives a first upstream data stream from a first user source via an Ethernet interface, modulates a first signal with the first upstream data stream and transmits the modulated first signal to the head-end via the outside plant; and a second network unit, then second network unit being coupled to the splitter via a second of the plurality of drop fibers, wherein the second network unit receives a second upstream data stream from a second user source via an Ethernet interface, modulates a second signal with the second upstream data stream and transmits the modulated second signal to the head-end via the outside plant, whereby the first and second network units can transmit the modulated first and second signals to the head-end substantially simultaneously without collision.