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Multiple signal transmission device

  • US 4,956,747 A
  • Filed: 10/13/1989
  • Issued: 09/11/1990
  • Est. Priority Date: 10/18/1988
  • Status: Expired due to Term
First Claim
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1. A multiple signal transmission device for controlling equipment, comprising(a) a transmitter/receiver connected with a carrier rail;

  • (b) at least one input/output module connected with said transmitter/receiver for transferring control signals relative to the equipment, said module including(1) a bottom portion connected with the carrier rail; and

    (2) a top portion electrically connected with said bottom portion via a plug connecting;

    (c) contact means connected with said module bottom portion and protruding laterally outwardly therefrom for engaging and electrically connecting said module bottom portion with a bottom portion of an adjacent module to provide current to said modules and data transfer therebetween, said contact means being electrically connected with said plug connection to supply current and transfer data relative to said module top portion.

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