布线发展史
何为增强型光束光缆连接器？
In the premises and data center infrastructure world, most of us are familiar with typical fiber connectors like duplex LC, SC and ST connectors and multi-fiber MPOs. Perhaps you’ve also heard about expanded beam fiber connectors or have encountered a scenario that requires them.
In case you aren’t familiar with these connectors, their applications and testing considerations, we thought we’d help you “expand” your knowledge.
2021 年 2 月 9 日
光缆认证测试：你需要损失、长度值（有时需要反射率）
As data speeds increase and new fiber applications emerge, there has been some confusion surrounding fiber testing parameters and whether insertion loss testing is enough to guarantee support for high-speed applications.
Other than new short-reach singlemode applications that are more susceptible to reflections and therefore take connector reflectance into consideration, insertion loss testing, length and polarity are really all you need for Tier 1 certification testing.
2021 年 1 月 19 日
混合铜缆光纤使用的考虑要素
In a previous blog, we covered what to do when you need to connect a device that is located beyond the 100-meter distance requirement and described four ways to address the problem—a new TR, the use of an extender device, extended-reach copper cable and fiber.
2021 年 1 月 12 日
年终反射率
When Winston Churchill said that the holiday season is not only one of rejoicing but also of reflection, he didn’t know that 2020 would be the year that family gatherings are kept to a minimum and parties take place over Zoom and FaceTime.
2020 年 12 月 28 日
以太网供电是否安全？
Power over Ethernet (PoE) has been around now for several years, starting with Type 1 PoE (IEEE 802.3af) introduced in 2003 that delivers up to 15.4 W, with 13 W available for the device. That was followed by Type 2 PoE (sometimes referred to as PoE Plus) that delivers up to 30 W, with 25.5 W available for the device.
2020 年 12 月 16 日
2020 年 12 月 2 日
2020 年 11 月 10 日
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.
2020 年 11 月 4 日
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。
2020 年 10 月 8 日
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。
2020 年 9 月 23 日
