Network to alarm panel simulator for VoIP
First Claim
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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Accused Products
Abstract
The present invention provides for a system and method for providing a signal to a communication system comprising an interface between a communication link and the communication system, like an alarm system, wherein the interface receives a signal from the communication link and provides a signal indicative of the availability of the communication link for use by the communication system. Alarm systems operations may be facilitated so that Residential Gateway components (such as voice terminal adapters) may simulate traditional telephone network systems that run on 48 VDC powered telephone lines. The system also comprises an input port associated with the interface for receiving the signal from the communication link, a transformer or a voltage regulator and an output port associated with the interface for providing the conditioned signal to the communication system. A ring voltage received from the communication link may be passed through to the alarm system.
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Citations
19 Claims
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1. An apparatus for outputting a status signal of a communication link, the apparatus comprising:
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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, and wherein 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. - View Dependent Claims (2, 3, 4, 5)
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6. A method comprising:
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receiving an input signal from a communication link; conditioning the input signal to obtain a status signal, wherein the status signal is indicative of an availability of the communication link; and outputting, by an interface coupled to the communication link, the status signal to a security monitoring device in a format expected by the security monitoring device, wherein the interface includes a current monitor for detecting an off-hook condition; wherein outputting the status signal includes outputting the status signal at a first magnitude when the communication link is available and outputting the status signal at a second magnitude, different than the first magnitude, when the communication link is unavailable. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A system for generating a status signal, the system comprising:
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an interface for generating the status signal based on an input signal from a communication link, wherein the interface includes a current monitor for detecting an off-hook condition; an input port, coupled to the interface, for receiving the input signal; a voltage regulator, coupled to the input port, for converting an input magnitude of the input signal to an output magnitude of the status signal; an output port, coupled to the interface, for outputting the status signal to a security monitoring device; and a voltage regulator input to control the voltage regulator to produce the status signal having a first output magnitude when the communication link is available and having a second output magnitude, different from the first output magnitude, when the communication link is unavailable. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification