Fiber access extension over power line drop
Devices, systems, and methods for extending an optical distribution network to an end point in a user's premises over a power line drop cable that supplies metered power to the premises are disclosed. An existing power line drop cable to the premises serves as an intermediate medium to transmit high-bandwidth data from an optical distribution network to a transceiver in a user's premises. Fiber from an optical distribution network connects to an outside-plant optical-to-electronic device comprising at least an optical network unit and a domain master. The device is powered by electricity from the electrical network to which the first power line drop cable is attached. The device can have an electromagnetic-interference filter.
1. A device for extending an optical distribution network (“ODN”) to an end point in a user's premises over a power line drop cable, comprising:
an optical-to-electronic (“O2E”) device, wherein the O2E device comprises:
an optical network unit (“ONU”) adapted to receive an optical broadband signal from the ODN and to provide an electrical broadband output signal; and
a domain master configured to receive an electrical broadband output signal and adapt it for transmission over a power line, the domain master comprising:
a network input for receiving the electrical broadband signal from the ONU,
a power input for receiving power from the power line drop cable,
and an output port adapted to transmit the adapted electrical broadband signal over the power line drop cable to the end point.
2. The device of claim 1 , wherein the domain master is adapted to be connected to the ONU by an Ethernet cable.
3. The device of claim 1 , wherein the domain master is adapted to receive power from the power line drop cable through a step-down transformer.
4. The device of claim 1 , wherein the domain master is adapted to receive power from an induction device coupled to the power line drop cable.
5. The device of claim 1 , wherein the O2E device further comprises an electromagnetic-interference (“EMI”) filter in series with the power line drop cable and the domain master.
6. The device of claim 5 , wherein the domain master is adapted to be connected to the ONU by an Ethernet cable.
7. The device of claim 5 , wherein the domain master is adapted to receive power from the power line drop cable through a step-down transformer.
8. The device of claim 5 , wherein the domain master is adapted to receive power from an induction device coupled to the power line drop cable.
9. A system for providing broadband data services to a user's premises, comprising:
an optical-to-electronic (“O2E”) device, wherein the O2E device comprises:
an optical network unit (“ONU”) adapted to be coupled to an optical distribution network (“ODN”) and to receive an optical broadband signal from the ODN, and
a domain master configured to receive an electrical broadband output signal the ONU and to adapt it for transmission over a power line;
an end point adapted to be coupled to a premises power line in the user's premises and adapted to receive the adapted broadband signal over the premises power line; and
a power line drop cable coupled to the premises power line and to the domain master;
wherein the domain master is adapted to be powered by electricity carried by the power line drop cable.
10. The system of claim 9 , further comprising a global master in operative communication with the ODN and the O2E device, wherein the global master is configured to control the domain master.
11. The system of claim 9 , further comprising an electromagnetic-interference (“EMI”) filter in series with the power line drop cable and the domain master.
12. The system of claim 11 , further comprising a global master in operative communication with the ODN and the O2E device, wherein the global master is configured to control the domain master.
13. The system of claim 12 , wherein the global master is a self-organized time-division multiple-access controller.
14. The system of claim 12 , wherein the global master is physically connected to the ODN.
15. The system of claim 12 , wherein the global master resides in a network core of the ODN.
16. A method of providing data services from an optical distribution network (“ODN”) over a power line drop cable to an end point, the power line drop cable and end point coupled to a power line in a user's premises, comprising:
receiving an optical data signal by an optical-to-electronic (“O2E”) device coupled to the ODN;
receiving at a domain master an electrical data signal converted from the optical data signal by the O2E device;
adapting the electrical data signal for transmission over a power line; and
transmitting the adapted electrical data signal from the domain master over the power line drop cable and the premises power line to the end point,
wherein the domain master is powered by electricity carried by the power line drop cable.
17. The method of claim 16 , further comprising filtering electromagnetic interference from the power line drop cable.
18. The method of claim 16 , further comprising controlling the domain master to transmit in a time window to avoid a collision with another data transmission on the same power line drop cable segment.
19. The method of claim 18 , wherein controlling the domain master to transmit in a time window to avoid a collision with another data transmission on the same power line drop cable segment is by a global master which is a self-organized time-division multiple-access controller, wherein the global master sends control signals to each domain master to avoid collision of data packets.
20. The method of claim 19 , wherein the global master resides in a network cloud that sends and receives control packets through an encrypted backbone.