Cabling Chronicles
What’s the Difference Between Channel and Component Standards?
When it comes to cabling standards, you’ve probably heard of channel standards and component standards. The two are not one and the same, so we thought it might make sense to explain the difference, why you should care and how they are tested.
November 4, 2020
Extending and Testing Cable Runs Beyond 100 meters
在上一篇关于如何连接超出铜缆以太网100米距离限值的终端设备的文章中，我们探讨了解决需要连接的终端设备距离最近的电信机房(TR)稍远问题以及各种解决方案，包括新建电信机房(TR)、使用扩展器设备、光纤或延长线缆。
虽然从技术层面上讲，使用延长布线的方法不符合标准要求，但它是最便宜、最简单的方法，因此越来越受欢迎。这也是为什么许多供应商推出了新的线缆设计以及/或者提供超过100m部署中的现有线缆的性能信息。
您可能只是想知道这些线缆可以部署的距离如何，我们认为首先要仔细研究一下为什么我们将双绞线铜缆布线距离限制为100m，线缆如何能够实现更远的距离以及如何最好地对其进行测试是非常有意义的。
October 8, 2020
Breaking the 100-Meter Barrier
这是一个常见问题——您需要连接的终端设备距离最近的电信机房(TR)有点远。虽然行业标准将通道长度限制为100米，但连接设备可能需要150米甚至200米的通道长度。
有四种方法可以解决上述问题。让我们来看看这些方法及其优缺点。
September 23, 2020
Physical Infrastructure Management Reduces Network Downtime
Planet IRM and Fluke Networks have integrated LinkWare Live into the Planet Infrastructure Relationship Management software solution, allowing customers to access detailed cable test results from their physical asset network diagrams, providing a view we like to call “from network map to wiremap”. We asked the team at Planet to introduce their solution and the benefits of the integration – their article is below.
September 15, 2020
August 20, 2020
Re-Certified Test Reports: Are They Really Valid?
最近，小福与一位结构化布线业务顾问聊天，发现他对其所负责的一个大型项目的一些测试结果有所顾虑，因为有证据表明这些测量结果使用福禄克网络的LinkWare™PC报告软件进行了重新认证。他担心的是这些结果不是真的有效，他的客户会拒绝接受测试结果，并且安装方将不得不返工并重新测试许多链路，可是客户已经在使用该网络了。返工重测有可能增加额外成本，声誉岌岌可危。
July 23, 2020
An Update on IEC 61280-4-1 Edition 3, Multimode Attenuation Measurement of Installed Cabling Plant
Introduction
IEC and other organizations, such as TIA, routinely reaffirm standards every few years. Reaffirmation is a way for subcommittees to decide if a standard is “dated” or still applicable to current times. Technology and market needs change often which drive standards to change. IEC 61280-4-1 edition 2 was in such a cycle several years ago and it was decided an edition 3 was needed.
June 25, 2020
June 18, 2020
Cable Testing 101: Understanding Near and Far End Crosstalk
If you're at all familiar with copper cable, you've probably heard about crosstalk--the phenomenon by which a signal transmitted on one pair or one channel creates an undesired affect on another pair or channel.
June 10, 2020
