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高效的LAN结构
日期:2008-3-12 13:18:27 来源:本站整理  
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With ‘Fibre to the Office’, more future in the network

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因为“光纤到办公室”,光纤在未来会使用的更多
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The innovation cycles are becoming ever shorter. Whereas active network components can be adapted relatively easily to the changed requirements, building cabling is very static and can only be modified with huge effort. Fibre optic is the only medium that ideally fulfils future requirements.
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创新周期变得越来越短。而动态网络元件能很容易的适应相对的改变要求。楼层布线是静态的,需要花很大功夫才能修改。光纤是唯一最符合未来要求的介质。
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The transmission bandwidths in corporate networks (LANs) are increasing; with the constant spread of Thin Clients, the relevant applications are also being transmitted in addition to data. This is supplemented by current applications such as IP telephony, which places high demands on transmission times (delay) and availability and thus requires future-oriented network structures.
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企业网络(LANs)的传输带宽正在不断增加;随着瘦客户机的不断蔓延,除数据外,相关的应用也在传输。这由当前的应用补充,例如IP电话,它非常依赖传输时间(延迟)和可用性。因此需要有面向未来的网络结构。
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If the volatility of these developments is taken into account, it soon becomes clear that a future-proof approach needs to be found in the planning of local network structures that specifically takes into account the scalability and upgradeability of the network. With the prevailing rate of innovation, a network is already out-of-date after just two to three years.
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如果将这些发展的变化性也考虑到的话。那样,很快就会明确的发现,在规划本地网络结构时,需要找到一个由未来保证的方法,特别是要考虑到网络的可扩展性和可升级性。随着创新速度的加快,一个网络在两三年后就将被淘汰。
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Hardware upgrades of the active network components to new technologies can usually be realised with less effort. Primarily, the trend in which functionality is increasingly determined by software or firmware facilitates the implementation of new innovation advances. The exchange or addition of new components can also be carried out easily.
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将动态网络组件的硬件升级到新技术,通常可以事半功倍的实现。首先,在目前的趋势中,功能越来越取决于软件或固件,从而便于实施新的创新进步。并且还可以很容易的交换或增加新的部件。
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Passive building cabling, however, is subject to entirely different innovation cycles. Unlike with the active technology, a rapid changeover in ongoing operations is not conceivable here. For this reason, the planning of passive cabling needs to be designed in such a way that operation is possible over a much longer period. The efficiency of a passive LAN network still needs to be guaranteed long after it has been installed.
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然而,被动楼层布线是属于一个完全不同的创新周期。不像动态的技术,它的创新速度超乎人的想象。因此,被动布线在规划时,需要设计成一个长时期有效的形式。被动LAN的有效性在安装后,必须保证很长的时间。
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Fibre optic as building infrastructure
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光纤作为楼层的基础结构
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Fibre optic is the only medium that ideally fulfils the aforementioned requirements. The most important feature of the fibre optic is its high bandwidth in combination with great transmission lengths. Problems such as sensitivity to electro-magnetic disruptions, interfering signal transmissions (EMV), potential differences and grounding errors can thus not occur in the first place.
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光纤是符合上述要求的唯一最好介质。光纤最重要的一个特点是在长距离传输时,也有高带宽。像电磁干扰的灵敏度、干扰信号的播送(EMV)、潜在的分歧和接地错误等问题不会出现。
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Particularly with regard to the rapidly growing capacity requirements of modern data networks, the aforementioned features of the fibre optics cannot be reached by any other technology. Consequently, the installation of a continuous fibre optic network means a long-term safeguarding of investment for the operator.

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