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What is M2M? As is known to all, besides providing more broadband speed and quality, 5G is characterized by the application of the Internet of things (IoT) from the demand and design stage. In order to adapt to different applications, mobile communication technology with no wiring, high coverage and high reusability has become an important...

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The similarities and differences between industrial... 1. definition of industrial 4G router and industrial switch   Industrial 4G router:   Industrial 4G router is a network device responsible for path finding. It provides users with communication by finding the least communication from multiple paths in the interconnection network. Industrial 4G router...

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4g router features of E-lins Technology With the development of new communication technologies and the continuous improvement of network efficiency and function of wireless communication, 4G has been widely used. 4G industrial-grade wireless routers are playing an increasingly important role in the applications of various industries, and the price is getting...

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E-Lins Industrial router applications Industrial-grade routers as Internet network layer communication equipment application in all walks of life, brought a lot of convenience for our industry. "E-Lins" introduce the application of industrial router scenario analysis.   1 The self-service terminal network   E-lins industrial router networking...

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Classification of 4G industrial routers There are many types of 4G industrial routers, which can be divided into different categories from different perspectives. Different types of 4G industrial routers can be used in different environments. The following sections classify the 4G industrial routers from different perspectives. According to the performance From...

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为什么1200M的覆盖能力和速度不如450M?

Category : 其他

目前路由器大部分都带802.11n的无线WiFi了。但后期也会往802.11ac双频发展。

1200M为无线双频802.11ac,提供的是300M的2.4G和866M的5G两个频段信号。但是目前大部分智能手机、平板电脑、笔记本的无线网卡及其他设备都只工作在2.4G频段,5G频段基本闲置,所以,实际上只使用了300M的速率,效果不如450M!所以,从目前来讲,无线速率快不快,目前关键看路由器在2.4G频段的表现。

从目前伊林思的路由器来看,主要是802.11n的150Mps速率的WLAN与802.11n的300Mbps的速率,均支持MIMO。

H685系列 150Mbps
H820系列 150Mbps
H700系列 300Mbps
H700系列 300Mbps

伊林思的路由器均为工业级,工业设备使用的WiFi目前一般都没有超过300Mbps,所以伊林思的主要产品里面不带450Mbps的WiFi。然后伊林思的H860系列可以由客户自行配置450Mbps的WiFi甚至是802.11ac双频的WiFi.

主流2.4G频段WiFi对比

Category : 技术相关

无线局域网(WLAN)通信标准标准经历了802.11a, 802.11b, 802.11g到如今主流的802.11n以及802.11ac.

802.11b 11Mbps
802.11 Super b 22Mbps
802.11g/802.11a 54Mbps
802.11 Super G 108Mbps
802.11 High Speed-G 125Mbps
802.11n 150Mbps
802.11n 300Mbps
802.11n 450Mbps

450Mbps是目前2.4Ghz频段速度最快的无线LAN。相比300Mbps无线产品,450Mbps传输更高效流畅,可以维持更高的无线带宽,提供更好的无线连接稳定性和更广覆盖范围。

真正的450M无线应该使用三天线。802.11N协议下150M是一个数据流(Stream), 300M为两个数据流,450M为三个数据流。一根天线收发一个数据流,故300M无线实际上2条天线就足够了。