无线技术和服务的无情扩展是否在有线网络结束时发出信号？事物互联网的增长，即将到来的5G，更快的Wi-Fi预测铜缆的最终死亡吗？有些人只是预测这一点。这是我的想法。
有线世界
怎样的男人y times have we wired the world? The first wired network was the telegraph, circa 1850. I’m not making this up. Telegraph lines actually came before the telephone and electrical power transmission. These didn’t show up until the late 1870s through the early 1900s. All three—telegraph, telephone and electrical power businesses—eventually created massive networks and grids that remain today. The telephone system grew into a massive enterprise including fiber and DSL wiring.
但那并非全部。在20世纪60年代，我们得到了传动进入巨大有线电视网络的社区电视天线系统。如今，这些混合纤维电缆（HFC）系统涵盖了大部分美国。在20世纪70年代及以后，局域网（LAN）开始将数百万个PC与双绞线连接。
Somewhere along the way, factories, process plants, and other industrial facilities got wired with fieldbuses like HART, Modbus, PROFINET, Ethernet, and others. Office buildings, homes and even complete cities were wired with twisted-pair Ethernet. And let’s certainly not forget the Internet and all the related fiber connecting the world. Now, wired networks have taken hold in cars, SUVs, and trucks. New vehicles have LIN, CAN, MOST, even Ethernet. What have I left out?
鉴于庞大的有线基础设施，你会认为燃烧问题的答案是一个坚实的“不，无线没有杀死有线世界”。
Wireless is Winning
但是，所有最近的网络炒作，开发和应用程序似乎都是无线相关的。无处不在的Wi-Fi。大规模扩展的5G蜂窝网络和数十亿智能手机。随着订阅者仅供蜂窝服务，公共交换电话网络逐渐消失。蓝牙电缆更换，无线耳机和扬声器，以及许多其他电缆。卫星电视分销与有线电视竞争。
Then there’s the Internet of Things that’s mostly wireless with its billions of sensors. Wireless utility-meter reading. And no telling how 5G will affect things. Initially, 5G broadband wireless services will challenge the DSL operators and cable companies.
With all those wireless signals floating around, it’s amazing that the EMI hasn’t compromised at least some of those systems. It’s only going to get worse, so we should all be worried.
The Death of Wired Systems is Premature
马克吐温被誉为称之为“我死亡的报告极大地夸大了”。这可能是这种情况。当您考虑它时，如果不是大多数这些无线系统都没有许多与电缆的其他网络一起绑定？
The cellular system can’t exist without all of those attendant fiber interconnects. Server interconnects in data centers use exotic cabling like Infiniband. And isn’t it wired Ethernet that ties all those Wi-Fi access points together to a server in a closet that is connected to outside fiber. Home wireless still needs that cable or DSL wiring to get internet access. Don’t all wireless networks actually have a wired connection to some other system?
显然，我们采取了可靠的有线网络理所当然。他们被认为是旧技术，没有认可或欣赏。但是，尽管这种疏忽不留，即使是不尊重，有线网络也继续改善。由于最新升级到DOCSIS标准，有线电视HFC系统不会更加速度。它可以轻松处理1 GB / s的数据，甚至在某些情况下更快。
多年来，随着公司发明的技术，DSL还在速度上升了速度，让您在双绞线上放置1 GB / s数据。此多年来，电信公司发现了如何通过使用神秘的感应中和变压器（INT）来最小化60-Hz感应电压和电流干扰和DSLAM。int已经存在了一段时间，但它的有效性尚未充分利用。通过使用最新标准，如VDSL2，G.Fast等，可以通过双绞线实现快速数据。感谢INT。
As for other examples of a healthy wired infrastructure, consider these. Many of the small cells needed for 5G will be fiber. IoT nodes are aggregated in gateways wired to some other wired LAN or internet connection. DSL and cable internet connections to homes and businesses aren’t going away. New 5G broadband wireless may take some business, but not all.
如果您想要深入了解此问题，请获取新书的副本计算机网络突破你一直想要，而无需使用光纤电缆......即使在互联网上的时代。It’s written by an acquaintance of mine, Russ Gundrum, a veteran of the telecommunications and cable businesses. He’s also the guy to thank for promoting and deploying the INT.
My conclusion is that wired networks still serve a real purpose. We actually can’t get along without them. Yes, wireless is getting all of the attention right now, but we should pay some respect to the wired networks we use every day.
