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Network to alarm panel simulator for VoIP

  • US 8,699,671 B2
  • Filed: 03/18/2013
  • Issued: 04/15/2014
  • Est. Priority Date: 06/30/2005
  • Status: Active Grant
First Claim
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1. An apparatus for outputting a status signal of a communication link, the apparatus comprising:

  • a current monitor for detecting an off-hook condition; and

    an interface coupled to the communication link and including the current monitor;

    wherein the interface receives an input signal from the communication link and outputs the status signal, and further, wherein the interface includes a voltage converter for converting a voltage of the input signal to a voltage expected by a security monitoring device, andwherein the status signal is indicative of an availability of the communication link and includes a first magnitude when the communication link is available and, responsive to the current monitor detecting an off-hook condition, includes a second magnitude, different than the first magnitude.

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