Analog self-test circuitry for a trunk interface

Details Analog self-test circuitry for a trunk interface Analog self-test circuitry for a trunk interface

H - Electricity

04

Q

H04Q 1/22 (2006.01) H04M 3/28 (2006.01) H04M 3/32 (2006.01) H04Q 3/62 (2006.01)

Patent

CA 2193937

An integrated circuit is provided for a trunk interface which can test a trunk interface card. Switching circuitry couples tip and ring leads to signal detection circuitry which detects the typical ring and lead signal information. During testing, a test signal is generated which causes the detection circuitry to be coupled to sets of simulated ring and tip test signals which can test the functionality of the integrated circuit and the signal detection circuitry.

ircuit intégré pour interface de circuit de communication, capable de tester une carte interface de circuit de communication. Des circuits de commutation couplent des conducteurs de tête et de nuque à des circuits de détection de signaux qui détectent l'information typique sur les signaux de nuque et de tête. Pendant l'essai, un signal d'essai est généré et entraîne le couplage des circuits de détection avec des ensembles de signaux d'essai de tête et de nuque simulés capables de tester la fonctionnalité du circuit intégré et des circuits de détection de signaux.

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