| 摘要 |
A USB transmission line having switching function comprises a transmission line, a first connector, a second connector, and a circuit unit. The first and second connectors are USB connectors, and are connected at two ends of the transmission line. The circuit unit has switching function of unidirectional transmission and bi-directional transmission, and is disposed on the transmission line between the first and second connectors. The transmission line can thus flexibly select the unidirectional transmission function or the bi-directional transmission function according to practical necessity.
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