| 摘要 |
A transmission wire includes a first interface, a second interface, and a microprocessor. The first interface includes a first pin, a second pin, and a first ground pin. The second interface includes a third pin, a fourth pin, and a second ground pin. The second ground pin is connected to the first ground pin. The microprocessor includes four pins connected to the first, second, third, and the fourth pins correspondingly. The microprocessor reads data from the first and second interfaces, to transmit data from the first pin to the third pin or the fourth pin, and transmit data from the third pin or the fourth pin to the second pin correspondingly.
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