Varying impedance line test termination device
AssigneeTII Industries, Inc.
InventorOmprakash G. Ahuja
Life of this patent
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Abstract
A varying impedance line test termination device for providing a characteristic signature to the telephone central office when a continuity test is made on a subscriber line having a pair of electrically conductive paths includes a first current path having a first resistor and a capacitor connected in series across the electrically conductive line paths and a second current path having a diode and a voltage breakover device connected in series across the capacitor. If the voltage breakover device is capable of emitting light, a flashing indication will be provided when the subscriber line is being interrogated.
Claims11
A varying impedance line test termination device for providing a characteristic signature to the telephone central office when a continuity test is made on a subscriber line having a pair of electrically conductive paths comprising:
- (a) a first current path having a first resistor and a capacitor connected in series, said serially connected first resistor and capacitor being connected across said electrically conductive line paths;
- and
- (b) a second current path having a diode and a voltage breakover device connected in series, said serially connected diode and voltage breakover device being connected across said capacitor.
Dependencies are inferred from the claim text.