Method for testing connectivity
AssigneesInventec (Pudong) Technology Corporation, Inventec Corporation
InventorsHsueh-Chih LU, Lien-Feng CHEN
Life of this patent
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Abstract
The present disclosure relates to a method for testing connectivity. The method is applied to an electronic equipment which is disposed include two test units (e.g. network interface controller, RJ-45 connector) and a network transformer. The test unit couple to the network transformer so that can send a high frequency test signal or a low frequency test signal to the network transformer respectively. When the test unit receives a low frequency response signal, it means correspond internal circuitry of the network transformer does not have a open circuit fault. When the test unit does not receive a high frequency response signal, it means correspond pins of the network transformer does not have a short circuit fault.
Claims15
A method for testing connectivity, which is applied to an electronic equipment, wherein the electronic equipment at least comprises a plurality of test units and a network transformer, the test units are respectively coupled electrically to the network transformer, and the network transformer at least comprises a transformer circuit, and the method comprises:
- a test unit of the test units sending a low frequency test signal or a high frequency test signal to the network transformer by using a boundary scan manner;
- determining whether the test unit receives a low frequency response signal or a high frequency response signal;
- identifying that an internal circuitry, which is disposed in the network transformer and between the transformer circuit and the test unit, does not have an open circuit fault, when the test unit receives the low frequency response signal;
- otherwise, identifying that the internal circuitry, which is disposed in the network transformer and between the transformer circuit and the test unit, have an open circuit fault, when the test unit does not receive the low frequency response signal;
- and
- identifying that a pin of the network transformer, which corresponds to the test unit, has a short circuit fault, when the test unit receives the high frequency response signal;
- otherwise, identifying that the pin of the network transformer, which corresponds to the test unit, does not have the short circuit fault, when the test unit does not receive the high frequency response signal.
Dependencies are inferred from the claim text.