The optical Ethernet extends Ethernet technologies from LAN to metropolitan area network(MAN).
光纤以太网把以太网技术扩展到LAN之外，进入城域网（MAN） 。
In line with the profound knowledge based economy the optical communications and LAN products have rapidly put information flow in control ;
岳丰科技公司简介 光通讯产品结合了知识经济时代广泛知识；
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