802.3 - 10Base5
課程影片
2B 講IEEE 802.3 乙太網路 (Ethernet) L02
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Bus Topology
最早期的拓樸是使用一種稱為 bus topology 的連接方式:
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當有裝置準備傳送訊息時,會藉由收發器往左右兩端廣播。而這個同軸電纜區段有距離限制,最遠 500 公尺。