Sequentially operated modules

  • US 9,559,519 B2
  • Filed: 08/16/2016
  • Issued: 01/31/2017
  • Est. Priority Date: 07/15/2009
  • Status: Active Grant
First Claim
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1. A first device for electrically connecting and detachably attaching to a second device and to a third device that are identical to the first device, the first device having first and second ends and comprising:

  • a first electromechanical connector at the first end of the first device, the first electromechanical connector being physically structured to be electrically connectable and detachably mechanically couplable to a second electromechanical connector of the second device;

    a second electromechanical connector at the second end of the first device, the second electromechanical connector being physically structured to be electrically connectable and detachably mechanically couplable to a first electromechanical connector of the third device;

    an annunciator adapted to perform a module-specific task coupled to be electrically Direct Current (DC) powered from the first electromechanical connector of the first device; and

    firmware and a processor for executing instructions embedded in the firmware, the processor being coupled to be electrically Direct Current (DC) powered from the first electromechanical connector of the first device and to control the annunciator in response to a command received from first electromechanical connector,wherein each of the first and second electromechanical connectors comprises two Direct Current (DC) power contacts and a signal contact, so that when the first device is mechanically connected to the second and third devices, DC power is passed by the respective electromechanical connectors from the second device to the third device via the first device.

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