×

Auto synchronous output module and system

  • US 5,959,528 A
  • Filed: 07/01/1998
  • Issued: 09/28/1999
  • Est. Priority Date: 07/01/1998
  • Status: Expired due to Term
First Claim
Patent Images

1. An auto synchronous output module for use at a plurality of zones in a fire alarm and detection system comprising:

  • a power source and output devices selectively coupled to the power source so as to provide audible and visual signals;

    a microprocessor within the module for coupling to a data line so as to enable transmission of data signals to and from a loop controller;

    means within the processor, responsive to an activate command from the loop controller for applying the power source to the output devices responsive to an alarm condition; and

    means within the processor, responsive to a synchronize command sent, subsequently to the activate command, from the loop controller, for applying power to the output devices in synchronism with application of other power sources to output devices at other respective modules.

View all claims
  • 9 Assignments
Timeline View
Assignment View
    ×
    ×