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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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Dual SIM Router vs. Dual Radio Router Projects are looking to save their enterprises time and money ask us this very often: “When would I need to use dual SIMs, and in what situations should I consider dual radio dual sim router?” In order to make this clear, let’s take a quick look at the dual SIM and dual SIM dual radio module functionality. Dual...

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工业路由器NBMA网络转化为点到点的链路 当我们使用点到点子接口将NBMA网络转化为点到点的链路时,整个NBMA网络将产生过多的PVC部分互联或全互联的网状结构,但这将产生一定的负面影响,会使网络中产生大量的LSP泛洪流量。我们都知道,运行IS-IS的工业路由器当接收到一个LSP报文后,会将此LSP从除接收接口以外的所有启用了IS-IS协议的接口泛洪出去,以使网络中的其他工业路由器都可以接收到此LSP。但是这种泛洪机制对于存在大量部分互联或全互联的网络将产生过多冗余的LSP扩散。 所谓全互联或全网状网络拓扑,是指所有工业路由器都与其他工业级无线路由器向连接(通常是点到点子接口)。在这样的一个网络中,当一台路由器从某接口收到邻居泛洪过来的LSP后,由于它并不知道这个LSP是否已经被其他邻居工业4g路由器收到,所以会再从其他接口泛洪出去,即使其他工业级4g路由器的链路状态数据库中已经存在这个LSP。如果网络中有n个全网路由器的话,那么网络中的每台工业级LTE路由器都会扩散n-2条冗余的LSP,这样总共被泛洪的多余的LSP将为(n-1)x(n-2),条而这些LSP的扩散是多余。如果每台工业全网通路由器都刷新一条LSP的话,那么这个数量还将会成倍数的增长,导致了大量带宽资源的浪费。 为了解这种在全互联或高度互联的网络中出现的LSP泛洪的冗余现象,IS-IS提供了一种解决方案——IS-IS全通组,也称作Mesh组。IS-IS全通组在RFC2973中进行了定义。所谓全通组,就是假设所有工业3G路由器之间都是完全互联的,每个工业级全网通路由器都会直接收到其他全网通工业级路由器泛洪的原始的LSP的拷贝。 可以将全网工业路由器的接口加入到某个全通组中,一个全网通工业路由器上可以存在多个全通组,全通组内接口之间的LSP泛洪是受限制的,全通组之间的LSP泛洪是正常的操作,未加入全通组的工业级3G路由器接口与全通组之间也是正常的LSP泛洪操作。全网通路由器 ...

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工业路由器使用CSNP来保证链路状态数据库的完整性 在广播网络中,工业路由器使用CSNP来保证链路状态数据库的完整性,并且只有DIS才会发送工业全网通路由器CSNP报文,DIS发送CSNP报文的间隔为10s。CSNP报文中描述了DIS的链路状态数据库中所有工业级3G路由器LSP的摘要信息。当其他工业级路由器收到DIS发送的CSNP后,会使用CSNP中的LSP摘要信息与与本地的链路状态数据库中的LSP进行比较,进行比较的目的是确定本地链路状态数据库中的信息是否已经同步和完整。如果工业级4g路由器发现本地数据库中缺少某个LSP条目,那么它将使用PSNP向DIS请求这个缺少的LSP条目。这个PSNP报文中包含就是请求的LSP条目的摘要信息。当DIS收到其他全网路由器发送的PSNP报文后,将会发送一个完整的LSP报文,这个LSP就是其他工业无线路由器所缺少的LSP条目。在广播网络中,DIS使用周期性的CSNP报文向网络中发送同步链路状态数据库的信号,而其他工业4g路由器使用PSNP报文来请求缺少的LSP条目。 在IS-IS的点到点类型的网络中,链路状态数据库同步的操作与广播网络中略有不同,而且工业级全网通路由器发送CSNP与PSNP报文的方式和其作用也有一些差别。 在点到点网络中不存在DIS,工业3G路由器不会周期性的发送CSNP报文,CSNP报文只在链路链路被激活时发送一次,而且链路两端的工业级4g路由器都会发送CSNP报文以描述本地链路状态数据库中所有LSP的摘要信息。当工业路由器发送对端发送的CSNP中含有本地缺少的LSP信息时,也会使用PSNP报文向对端请求LSP。当对端收到PSNP报文后,将向请求方发送包含完整LSP信息的LSP报文,这点上与广播网络中的操作是相同的。但是在点到点链路上,收到LSP报文的工业4g路由器还会向对方再次发送一个PSNP报文以对之前收到的LSP进行确认。可以说,在点到点网络中的LSP交换是可靠的。这点与广播网络不同,在广播网络中工业级无线路由器不使用PSNP报文对收到的LSP进行确认,而是通过DIS周期性地发送CSNP报文以弥补广播网络中不可靠的LSP交换。 在点到点链路上,工业路由器使用PSNP对收到的LSP报文进行确认,所以在点到点链路上是可靠的泛洪机制。 IS-IS路由协议支持两种网络类型:广播链路和点到点链路。默认情况下,全网通工业级路由器IS-IS将广播网络和NBMA网络看作是广播类型。对于封装了PPP或HDCL等协议的链路看作是点到点类型。对于NBMA网络中的主接口和点到多点子接口,IS-IS将其看作是广播类型;对于NBMA网络中的点到点子接口,将其看作是点到点类型。IS-IS不像OSPF那样,提供了对NBMA网络(例如Frame-Relay、ATM)的专门支持。对于NBMA网络,全网通工业路由器IS-IS认为其网络拓扑是PVC全互联(mesh)的,就是把它看作广播网络。但如果实际网络拓扑中并不是PVC全互联的结构时,例如部分互联的结构和Hub-Spoke结构,推荐使用点到点类型网络,即使用点到点子接口,以免造成NBMA网络中的链路状态数据库同步出现问题。无线路由器

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E-lins Industrial router Offer Safe and Stable Wireless Data Transmission

文章目录 : 产品文章, 伊林思产品FAQ

E-lins H700 Industrial router Offer Safe and Stable Wireless Data Transmission.
Nowadays, 3G internet service has become a basic demand. And the 4G LTE, which offers a faster internet service, is the following mainstream. LTE(Long Term Evolution)is the standard for wireless communication of high-speed data transmission, it’s also the evolution of GSM/EDGE and UMTS/HSPA. LTE can highly enhance the performance of transmission capability and network speed. America now is the leading country of using LTE service, which is available in 486 cities. Providing the high-bandwidth transmission is one of the LTE advantages, it fully meets the requirements of high-speed telecommunication. LTE also benefits in data transmission of the high-speed railway application. Moreover, it can be fully implemented in highway utilization, station side/on-board surveillance, real-time voice and video transmission, mobile internet, aero-applications, etc. Wireless routers are widely applied to the Intelligent City System: electricity distribution system, the wireless data transmission of surveillance system, water treatment plant monitor and control system, highway bridge prier monitor system, bank service, and etc.

For the large requirement in the market,E-lins technology is pleased to release this industrial grade router series with 3G and 4G LTE.two sets of SIM cards, while one SIM card malfunctioned, the other one can immediately turns on its back up function and lower the risk of data lost or fail transmission.

World’s fastest 4g router in E-lins

文章目录 : 产品文章, 技术相关

E-lins 4G LTE router speed: Max. 100Mbps downlink, 50Mbps uplink
E-lins’s latest network upgrade, ‘LTE Advanced’ (built by Sierra FDD and ZTE TDD),‘LTE Advance’ uses a technology called ‘carrier aggregation’ which allows mobile signals to be carried across different spectrum simultaneously. Currently, access to E-lins’s Advanced network, which will be rolled out commercially beyond Tech City early next year.
The new network we’re switching on in Tech City uses the spectrum that we acquired in the Ofcom spectrum auction earlier this year, and is the first part of an infrastructure that can meet the future demands of an increasingly data-hungry nation.

what’s openwrt?

文章目录 : 技术相关

What’s openwrt? in my mind,openwrt is running on the embedded device linux systems.
OpenWrt file system is writable, developers do not need to recompile after each modification,
Make it more like a mini Linux computer systems, but also accelerated the development speed.
You will find both the ARM, PowerPC, or MIPS processor, has a very good support.
And with around 3000 packages, users can easily customize the features to make the firmware.
Can be easily ported to various types of functions under openwrt.

Case:e-lins H860 openwrt router

How to protect your business’ wireless network

文章目录 : 技术相关

Your business’ wireless network is  so important. To keep your wireless network secure, E-lins  have some security tips.follow me:

1.Immediately change the default password,beacause it is widely known.

2.Use only WPA2, which introduces a new AES-based encryption for better security over WPA.

3.Don’t use the default SSID

4.Forget MAC address filtering

5.Disallowing administrative access from the wireless network shout keep any successful hacker from wreaking further havoc by making changes to the configuration of your Wi-Fi router.

Maybe can help u!

What’s HSPA+?

文章目录 : 技术相关

HSPA+ is a network.HSPA+ (High Speed Packet Access Plus) is the name of the set of HSPA enhancements that are defined in 3GPP beyond Release 6 (R6). The enhanced downlink (HSDPA) was defined in R5 and the enhanced uplink (HSUPA) was defined in R6.
HSPA+ is an enhanced version of high-speed 3G wireless networks. Because it is so closely related to 3G and is not a new, built-from-the ground-up technology, HSPA+ has been called a 3.5G network instead of a true 4G network. But HSPA+ networks are capable of delivering 4G speeds, with download speeds between 5 megabits per second and 8 mbps.

This means that when you use an HSPA+ enabled device to access the internet, pages will load even quicker than normal on your phoneor computer – and you can expect faster downloads too.

Key Features of HSPA+:

It increases HSPA capacity as well as reduce latency below 50 milliseconds
It supports voice and data services on the same carrier and across all of the available radio spectrum and offers these services simultaneously to users
HSPA+ with 64 QAM and advanced antenna techniques such as 2X2 MIMO can deliver 42 Mbps theoretical capability and 11.5 Mbps on the uplink and could be ready for deployment in 2010
HSPA+ enhancements are backward-compatible with UMTS Release 99/Release 5/Release 6
HSPA+ could match, and possibly exceed, the potential performance capabilities of IEEE 802.16e-2005 (mobile WiMAX) in the same amount of spectrum, and could match LTE performance when using 5 MHz of spectrum.

The Best Wireless Router for Industrial

文章目录 : 其他

Buying the right wireless router is a real task, sometimes. With the new 802.11ac standard floating around in the wings, and a seeming endless line of variations in routers, which one is best for you? I think it is E-lins H685 Industrial router.
industrial router
As far as security, you’ll find WEP, WPA, WPA2, and WPA2-Enterprise protecting your network with everything backed up by a Qualcomm chipset.Four band,High speed! Support VPN: PPTP, L2TP, IPSec, GRE, Tunnel (PPTP client, L2TP client, IPSec client, IPsec server),Support RS232 or RS485 port.Welcome to our website to know more!

4 reasons why 4G hasn’t scale up in India

文章目录 : 其他

4 reasons why 4G hasn’t scale up in India
One,Challenges for deploying 2300 MHz TD-LTE: The spectrum band licensed for BWA in India (TD-LTE on 2,300 MHz) has only been deployed in around 20 countries including Hong Kong, Australia and South Africa; the band lacks ecosystem support, device choices and network scale. Of the overall 1,000 devices launched by manufacturers for LTE, only 100 are suitable for the mode licensed in India. As a result, Indian operators have had to consider offering LTE services to a Wi-Fi router which in turn connects Wi-Fi-ready devices. The band is also weaker in offering in-building coverage compared to other modes of LTE.
Two, Better backhaul: Backhaul connections currently lack the coverage and quality required to render 4G services effective. Without the backhaul service to carry data at the same speed, the benefit of the 100 mbps connectivity offered by 4G cannot be realised by the end user. Over the last few years, Indian operators have invested heavily in rolling out fibre; we are now beginning to see scale and agreements falling into place.
Three, Combining data with voice: The advantage of offering super-high-speed data connectivity bundled with mobile voice is that the 4G service needn’t have to compete directly with fixed alternatives on price alone. Telecom regulations now allow an entity to hold a universal access licence to offer mobile voice. So, provided the BWA player has access to voice spectrum, it can now bundle high speed data and voice together.

Four,Capital constraints: A number of operators have put priority on deploying 3G first, due to capital and management constraints. And, in general, India’s capex to sales ratio has come down to 12-14 percent, while it is 22-25 percent for other emerging Asian countries such as China.

Industrial Wireless:Beware of COTS

文章目录 : 技术相关

Industrial Wireless:Beware of COTS, This is a tip of  Broken Signal Solutions.

Just because 802.11 is a commercial off-the-shelf (COTS) standard doesn’t mean that COTS products can be used in the industrial environment, warns Advantech’s Lochhaas. Industrially hardened access points “will survive in the industrial environment when exposed to extremes of temperature, dust, humidity, hazardous vapors and other common situations,” he says. “So when selecting your industrial wireless products, be certain to determine their suitability for the service you wish to use them in.”

E-lins notes, “Industrial environments are harder on wireless than any office would ever be,” which can drastically shorten the useful lifespan of wireless equipment. You get what you pay for in this world, and using office-grade networking equipment to save small amounts of money upfront will turn out to be a huge mistake when you have to pay for it later with downtime and repairs.”

E-lins’s comments could serve as a handy maxim to guide your approach not just to COTS components, but to wireless implementation in general.

Enable-Network To A Bus

文章目录 : 技术相关

E-lins H685 and H820 router Application in Sydney’ bus.E-lins Perfect solution when we’re dealing with a constantly moving, rattling bus!

E-lins  Wireless has been dealing with that problem recently. It’s supplying the on-bus 3G Wi-Fi routers for Sydney’s Opal transport smartcard, which is supposed to catch NSW up to the rest of the nation by actually introducing a work on-train smartcard.

As part of a supply contract with Opal’s main developer Cubic Transportation Systems to fit out 5000 Sydney buses, E-lins had to customise one of its existing designs. Many of the features on the router would be recognisable in most networking contexts: it has eight on-board ports, and can switch between using Telstra’s 3G networks when on the road and Wi-Fi signal when in maintenance areas. But it also required some changes.

“We’ve specialised the device so that it copes with vehicles being turned on and off which can cause spikes and currents in the available power,” E-lins Wireless’s Evan zou told us. “It’s also vibration-proof.”

The bus rollout is currently half-completed (though only two routes in Sydney are active), and scheduled to finish by the end of 2014.

E-lins Secure Broadband 4g Router and Gateway for Remote Monitoring

文章目录 : 产品文章, 伊林思产品FAQ

E-lins H685 is built for security, speed, reliability and versatility to meet the ever-changing needs of fixed and mobile enterprise broadband M2M applications. With a high performance, yet low-power, embedded processor, the H685 is an adaptable and economical platform for 3G and 4G broadband routing and cellular gateway functions. The H685 product line features an open Linux operating system, user programmable applications, four power management sleep modes and both high-speed and digital physical interface options.

The H685′s a leading provider of wireless products, services and solutions, announced today its newest enterprise data product, a high-speed broadband router and gateway messaging unit that provides reliable and secure 3G and 4G network connectivity for 24/7 always-on operation of remote-fixed and mobile machine-to-machine (M2M) deployments. Welcome to our website learn more!