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随着电信技术的发展,继五类线缆后,又有许多新的电缆被开发出来。国际标准化委员会ISO/IEC、欧洲标准化委员会CENELEC和北美的工业技术标准化委员会TIA/EIA都介入了新标准的制定,但相应的统一线缆标准仍未出台。因此,业内有关Gat.5,Cat.5+(增强的Cat.5)Cat.6及Cat.7标准的概念存在着一定程度上的混乱。另外,IEEE 802、ATM论坛等网络应用的标准化组织为更高速的网络应用制定了标准,他们也从网络应用的角度影响着布线系统新规范的制定。 千兆位以太网(Gigabit Ethernet)是对布线系统有着深远影响的网络应用。最初,千兆位以太网的开发,是为在现有的五类非屏蔽双绞线(Cat.5 UTP)上运行千
With the development of telecommunication technology, many new cables have been developed following the five types of cables. International Standardization Committee ISO / IEC, European Committee for Standardization CENELEC and North American Industrial Technology Standardization Committee TIA / EIA are involved in the development of new standards, but the corresponding unified cable standard has not been introduced. As a result, there is some confusion in the industry about the concepts of Gat.5, Cat.5 + (Enhanced Cat.5) Cat.6 and Cat.7 standards. In addition, standardization organizations for network applications such as IEEE 802, ATM Forums set the standard for faster networking applications, and they also influence the development of new cabling system specifications from a network application perspective. Gigabit Ethernet is a networking application that has a profound impact on the cabling system. Initially, Gigabit Ethernet was developed to run on the existing Category 5 unshielded twisted pair (Cat. 5 UTP)