System and method for detecting a connection condition of a phone jack
View Patent ↗A phone jack connection detection system and method of operating the same, including a phone jack circuit having a data access arrangement circuit in communication with at least two pins, a stimulus input in communication with the phone jack circuit, the stimulus input being adapted to communicate a stimulus to the phone jack circuit, and a detection circuit in communication with the phone jack circuit, the detection circuit being adapted to detect a response of the phone jack circuit to the stimulus and notify a user of the status of the connection.
1. A connection detection system comprising:
a phone jack circuit including a data access arrangement circuit in communication with at least two pins;
a stimulus input in communication with said phone jack circuit, said stimulus input being adapted to communicate a stimulus to said phone jack circuit; and
a detection circuit in communication with said phone jack circuit, said detection circuit being adapted to detect a response of said phone jack circuit to said stimulus.
2. The system of claim 1 wherein said stimulus includes at least one of a square wave, a sinusoidal wave, a DTMF tone and a GPIO pin.
3. The system of claim 1 further comprising at least one isolation component adapted to electrically isolate at least one of said stimulus input and said detection circuit from said phone jack circuit.
4. The system of claim 3 wherein said isolation component is at least one of a capacitor, a Y-cap, a transformer and an optocoupler.
5. The system of claim 3 wherein said stimulus input and said detection circuit are electrically isolated from said phone jack circuit.
6. The system of claim 1 wherein said stimulus input and said detection circuit are electrically coupled to said phone jack circuit.
7. The system of claim 6 wherein said stimulus input and said detection circuit are associated with said data access arrangement circuit.
8. The system of claim 1 further comprising a processor in communication with at least one of said stimulus input and said detection circuit.
9. The system of claim 8 wherein said stimulus input is adapted to communicate said stimulus in response to a signal from said processor.
10. The system of claim 1 wherein said detection circuit includes a high impedance A/D input.
11. The system of claim 1 further comprising a network, wherein said response includes a one characteristic response when said phone jack circuit is connected to said network and a another characteristic response when said phone jack circuit is not connected to said network.
12. The system of claim 1 wherein said network is a public switched telephone network.
13. The system of claim 1 wherein said response includes a first characteristic response when a first one of said pins is shorted with a second one of said pins and a second characteristic response when said first one of said pins is not shorted with said second one of said pins.
14. A peripheral device comprising:
a processor;
a phone jack circuit electrically isolated from and in communication with said processor, said phone jack circuit including a data access arrangement circuit and at least two pins;
a stimulus input in communication with said phone jack circuit and said processor, said stimulus input being adapted to introduce a stimulus to said phone jack circuit in response to a command from said processor; and
a detection circuit in communication with said phone jack circuit and said processor, said detection circuit being adapted to detect a response of said phone jack circuit to said stimulus and communicate a signal indicative of said response to said processor.
15. The peripheral device of claim 14 further comprising a user interface in communication with said processor, wherein said processor is adapted to communicated a notification based at least upon said response to a user by way of said user interface.
16. A method for determining a connection condition of a phone jack circuit having at least two pins, said method comprising:
introducing a stimulus to said phone jack circuit;
detecting a response of said phone jack circuit to said stimulus; and
correlating said response to said connection condition.
17. The method of claim 16 wherein said response includes a first characteristic response when said phone jack circuit is connected to a network and a second characteristic response when said phone jack circuit is not connected to said network.
18. The method of claim 16 wherein said response includes a first characteristic response when a first one of said pins is shorted with a second one of said pins and a second characteristic response when said first one of said pins is not shorted with said second one of said pins.
19. The method of claim 16 wherein said connection condition is at least one of: (1) a network is connected, (2) a network is not connected and (3) a short in said phone jack circuit.
20. The method of claim 16 wherein said stimulus is introduced over an isolation component.