The Media Access Control method treats the link as point-to-point.Since separate fibers are used for transmitting (Tx) and receiving (Rx) the connection is inherently full duplex.

• 媒体存取控制方法将传输链结视为点对点的连接方式，因为传送与接收线路采用分离的光纤，因此该链结本质上就是传双工的。