Reconfigurable node for a hybrid fiber cable network

Optical communications – Multiplex – Broadcast and distribution system

Reexamination Certificate

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Details

C398S070000, C398S072000, C398S066000, C398S067000, C398S068000, C398S079000, C455S003010, C455S001000, C455S001000, C725S129000, C725S119000, C725S127000, C725S114000, C725S149000, C725S120000, C725S111000, C725S126000, C725S105000, C370S352000, C370S389000, C370S476000, C370S400000, C370S535000, C370S474000

Reexamination Certificate

active

07039317

ABSTRACT:
A reconfigurable node for a hybrid fiber cable network includes fiber slots housing a transmitter or receiver interfacing to a head end, coax slots housing an RF brick interfacing with subscribers and RF plug-in modules providing connectivity between the fiber and coax slots. The plug-in modules include connection points, for connection to a fiber or coax slot. A fiber impedance element, associated with the transmitter or receiver in that fiber slot, is connected to each fiber slot. Each fiber impedance element has a different impedance value. A coax impedance element, associated with the RF brick in that coax slot, is connected to each coax slot. Each coax impedance element has a different impedance value. An impedance sensing circuit detects a DC level associated with each connection point which corresponds with the impedance element in a respective fiber or coax slot to determine the location of transmitters, receivers or RF bricks.

REFERENCES:
patent: 6577414 (2003-06-01), Feldman et al.
patent: 6751417 (2004-06-01), Combs et al.

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