Patent ID: 9088837
Filing Date: 2015-07-21
Classification: H04B,H04L,H04Q,H04W

Abstract:
1. An apparatus for serially-distributed devices, comprising: a cable including communication wires comprising at least one fiber optic cable that includes a passive optical splitter at each device and power wires for powering the plurality of devices; a plurality of devices connected in series with the communication wires along a length of the cable; and a headend interface connected at one end of the cable and operable to provide a communication interface with the devices along the communication wires, wherein each device includes an optical diplexer operable using two different optical wavelengths, wherein a first wavelength is used for receiving signals from the headend interface and a second wavelength is used for transmitting signals to the headend interface, and wherein the optical diplexer includes a filter operable to pass upstream packets to the headend interface at the second wavelength, block the reception of any packets at the second wavelength, and pass downstream packets from the headend interface at the first wavelength.