| 摘要 |
<p>The present invention discloses an apparatus and a system for detecting faults on a parallel cable, and relates to the field of electronic device technologies. The apparatus includes a first detecting module, a second detecting module, and a control module. The first detecting module includes a first resistor connected in series between a first pin and a power supply, a first voltage change detection circuit connected to the first pin, and a first switch circuit; an output end of the first voltage change detection circuit is connected to an input end of the first switch circuit, and a first fault detection point is set on an output end of the first switch circuit; the second detecting module includes a second resistor connected in series between the second pin and the ground, and a second fault detection point is set on the output end of the second detecting module; and the control module sends an alarm signal according to change of the level state of the first fault detection point and the second fault detection point. The present invention detects the voltage change of the first pin and the second pin, and controls the level state of the first fault detection point and the second fault detection point according to the voltage change, thereby detecting the faulty parallel cable quickly and accurately.</p> |
