Local area network of serial intelligent cells

  • US 7,035,280 B2
  • Filed: 03/10/2004
  • Issued: 04/25/2006
  • Est. Priority Date: 07/28/1998
  • Status: Expired due to Term
First Claim
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1. A device for coupling a data terminal equipment unit to a data signal carried by wiring in a building that carries a power signal simultaneously with the a data signal, said device comprising:

  • a wiring connector for connecting said device to the wiring;

    a data coupler coupled to said wiring connector and having a data signal port operative to pass only a data signal;

    a modem coupled to said data signal port for full duplex data signal communication with the wiring;

    a data interface connector coupled to said modem for connecting to the data terminal equipment unit;

    a power coupler coupled to said wiring connector and having a power signal port operative to pass only the power signal; and

    a power supply coupled to said power signal port and to said modem to be powered by the power signal from the wiring and for powering said modem.

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