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The detailed difference between 4G industrial router...   4G industrial router and 4G DTU both realize the wireless network data transmission function, and the differences between them are mainly from the use method, appearance interface and application environment, etc. Today, we will introduce some differences between 4G router and 4G DTU.   Different methods...

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Application analysis of iot sensing technology   The Internet of things (iot) is widely used in the integration of networks through intelligent perception, recognition technology, pervasive computing and other communication perception technologies. The iot is understood as "Internet connected by things". The Internet of things (iot) connects all objects with...

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What is a single/dual frequency wireless 4G router 1. Introduction to "single frequency" router The single-frequency router only works in the 2.4ghz band, which is generally supported by wireless terminals. However, the 2.4ghz band has large interference, which may affect the wireless rate and stability.   2. Introduction to "dual-frequency" router Dual-frequency...

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Wireless communication DTU features Data Transfer unit (DTU) is a wireless terminal device specially used to convert serial Data into IP Data or convert IP Data into serial Data for transmission through wireless communication network.   DTU advantages: Rapid and flexible network, short construction cycle, low cost; Wide network coverage; Good...

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The advantage of using wireless data transmission module... Data transmission can be simply divided into two major types: wired (including the installation of optical cables, cables or leased telecommunication lines) and wireless (including the establishment of dedicated wireless data transmission system or the borrowing of CDPD, GSM, CDMA and other public network information platforms).     In...

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Classification of 4G industrial routers

Category : 技术相关

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 the perspective of performance, 4G industrial routers can be divided into linear router and non-linear router.

The so-called wire speed router can transmit freely according to the transmission medium bandwidth, basically without discontinuity and delay. The specific calculation method is the same as that of the switch line speed backplane bandwidth. A wire-speed router is a high-end router with very high port bandwidth and data forwarding capability that forwards packets at the media rate.

Non-wire-speed routers are mid – to low-end routers, but some new wire-access routers also have wire-speed capabilities. The performance of router is mainly affected by CPU performance. If the CPU performance is high, the 4G industrial router is more likely to be a high-performing wire-speed router.

Speed is generally not a measure of a router, and data throughput is one of the references used to measure a router’s maximum data throughput. The routers with the capacity of the rear plates of 4G industrial routers greater than 40Gbps are called high-grade routers. The routers with the capacity of the rear plates between 25Gbps and 40Gbps are called midrange routers, while those with the capacity lower than 25Gbps are considered as low-grade routers. This kind of dividing way is not so absolute, specific parameter needs to make distinguishing according to each manufacturer specific parameter.

According to the structure of the points

The 4G industrial router can be divided into modular router and non-modular router according to the structure Angle.

Modular routing generally only provides basic routing function when leaving the factory. Its interface type and partial extension function are configured according to the actual needs of users. Users can choose corresponding modules according to the network type they need to connect. Different modules can also provide different connectivity and management capabilities. For example, the vast majority of modular routers allow users to choose network interfaces, VPNS, firewalls and other functions, most of which are modular routers.

Routers H685/H700/H720/H750/H820/H820Q/H820QO  from E-Lins are all modular router, can meet the requirements from all over the world.

Non-modular routers are mostly low-end routers, which are mostly used in civilian environments. Primarily used to connect small business customers within homes or isps, supporting virtual private network protocols such as SLIP, PPP, PPTP, and IPSec. These protocols to run on each port, such as ADSL will increase home broadband availability, which will increase the burden of accessing routers. In the future, such router ports will run multiple protocols while avoiding the telephone switched network.

According to the function points

The 4G industrial router is divided into general router and special router. The common civilian router is the general router, that is, the router that can normally use the routing function under the general environment, and there is no other special requirement scenario.

The special router optimizes the routing interface, hardware and so on to realize a certain function. For example, the foreign trade special router changes the local IP through the special router, which can also quickly access some foreign trade stations in China, which is more convenient.

According to the interface points

4G industrial routers can support SDH stm-1 interface, SDH stm-4 interface and SDH stm-16 interface. At present, the router supporting SDH stm-64 interface is high-end 4G industrial router. However, other interfaces are relatively weak, among which stm-1 has two types of optical interface and electrical interface. Stm-1 electrical interface is suitable for local situations where the interference signal is weak. The light interface is usually used for stm-4, stm-16 and stm-64.

according to the perspective of the object of use

The 4G industrial routers can be divided into core router (core level), distribution router (enterprise level) and access router (home level) according to the perspective of the object of use.

The core router, which is the router that forwards packets to the host computer in the network (but not between networks), is the key device to realize Interner network interconnection with other levels of routers. Often used by telecom operators or isps. The throughput of core router is larger, and the requirement of speed and reliability is higher. In order to obtain high reliability, the network system generally adopts traditional redundant technology such as hot backup, dual power supply and dual data path, so that the reliability of backbone router is not a problem.

Distributed routers are used to connect multiple logically separate networks because there are many connected objects, the system is relatively simple, and the data traffic is relatively small. In addition to connecting different networks, distribution routers also need to choose smooth and rapid short-cuts to improve the communication speed, reduce the network communication load, save system resources while improving the unimpeded rate, and maximize the benefit of the network system.

The access router is mainly used for network interconnection in the small local area network. It is often used in the case of small area and simple network environment such as home, small enterprise or net bar.

Dual SIM Router vs. Dual Radio Router

Category : 技术相关

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 SIM

With two SIM cards inserted into one E-Lins H700/H720/H750/H900 Router, the radio still only connects to one active SIM at a time, the other SIM will work as backup link. Simply speaking, one SIM as main, the other as backup. Two SIMs will not be online at the same time.

Dual-SIM functionality allows you to switch two carriers on the fly at a store location. Let’s say you’ve configured a router and inserted two active SIMs on two different carriers into the router, then sent it into the field for deployment. The IT professional in charge of installation performs site surveys on SIM A and SIM B.

Based on the results, your installer will switch to the carrier that is providing the best network experience at that location. Then he or she can deactivate the other SIM, ensuring the company is only charged for one cellular data plan at a time.

Dual Radio Module

Dual Radio Module — accomplished with dual radio module router— allow you to connect two carriers at the same time, which provides multiple benefits, such as you can choose one carrier work as primary and the other work as secondary; SIM A work and go pass the data first, meanwhile SIM B work standby and it will switch to SIM B when SIM A link failed, which will ensure the whole cellular link always be online.

Failover / WAN Redundancy

The ability to connect to two carriers at the same time is the only way to provide cellular-to-cellular failover — which can be beneficial in many situations and is the only option for WAN link redundancy for M2M&IoT networking. The automatic switch from one carrier to the other occurs in a few seconds. Also, both radio modules can be active at the same time, allowing for more bandwidth.

At locations where wired-line connectivity is available, some end-users use dual radio to further enhance their failover by utilizing three carriers at once. For example, they might use wired-wan via xDSL and two different cellular SIMs to provide “three-nines” connectivity.

Additionally, a router with a dual radio offers additional bandwidth during high-usage times when using load balance or sim bonding feature, which two features are very often seen in dual radio dual sim router.

Let me summary the key points of when to use dual radio dual sim router for you:
1)When you want to connect two different ISP/carrier.
2)When you want to use two ISP/carrier’s cellular failover.
3)When you want to use load balance or SIM bonding to enhance your bandwidth

E-Lins Technology Co., Limited owns H700/H720/H750 3 series excellent dual radio dual sim routers which are on hot-selling worldwide, so when your cases or projects are in need of dual radio dual sim, you can freely contact with E-Lins Technology Co., Limited.

What is 4G?

Category : 技术相关

What is 4G?
Short for “fourth generation,” 4G is the next generation of wireless communications succeeding the 2G (GSM), 2.5G (GPRS or EDGE) and the 3G network technologies. Digicel’s 4G network is now the fastest, most advanced cellular network in T&T.

Our 4G network is designed to provide instant and easy access to the internet via your phone, tablet or computer. On average users will experience speeds of 2Mbps. Actual speeds will vary depending on several factors including network traffic, device type and location.

What can I do with 4G?
With the power of Digicel’s 4G network and a 4G capable smartphone, everything is faster and your phone can do so much more…

1)Faster web browsing
2)Faster downloads (documents, photos, apps, music etc)
3)Faster photo & Video Uploads
4)Stream videos and music
5)Send and receive e-mails with large attachments faster
6)Video chat with friends & family
7) wireless M2M application
8) And so much more!

Does your application require 4G LTE or can you get by with 3G or 4G HSPA+?

Category : 技术相关

Depending on your application you may or may not need to have a device that supports 4G LTE. For example, take most Kiosk, ATM and POS applications, most transactions or data transmissions with be in KB, not MB’s so LTE isn’t as crucial. However, if you’ll be using these for occasional remote surveillance or digital signage applications the additional speed LTE offers could be a big factor to consider upgrading to 3G/4G LTE supported hardware. When you answer this question it will help you narrow down which equipment you should focus on.

What essential features a business router need?

Category : 技术相关

What essential features a business router need?A router is the heart of your network,Any essential features must to be.

1. Wi-Fi access point
2. Guest Wi-Fi access
3. Virtual LANs and multiple SSIDs
4. VPN Server and Client
5. USB port for printers or drives
6. Malware and spam protection
7. Dual or backup WAN port (or 4G support)
8. RADIUS server

Difference Wi-Fi And Wireless

Category : 技术相关

What difference between Wi-Fi, wireless?E-lins tell you detail.

We frequently encounter people who confuse the many possible meanings of “wireless” because they do not understand how the term is applied in different systems.

Wi-Fi is the abbreviated name of systems consisting of servers, routers and switches in various combinations to provide access to the Internet via wireless access points.

Wireless is a more comprehensive term used to describe any system for moving data at high speed over radio circuits instead of wires or cables.

Seven Steps Connecting to a VPN server or router in win7

Category : 技术相关

Seven Steps Connecting to a VPN server or router in win7

Step 1. In the Network and Sharing Centre (under Control Panel, Network and Internet), there is an option to “Set up a new connection or network.” The next step is to click on “Connect to a Workplace” in order to start the connection wizard, and then select “Use my Internet connection (VPN)” option to begin the process. If you have a 3G card installed, first of all you may see a prompt to use the 3G card instead of creating a “new” connection. In this case, you want the “new” connection so that you can use your existing Internet connection (yes, it’s a little confusing).

A far easier way to get to this point is to click on the Start button and type “VPN” in the search box. It will jump straight to the “Set up a virtual private network (VPN) connection” window in the wizard.

Step 2. In the Internet address field, enter the IP address of the VPN server or the network’s domain name. This information will usually be provided by the network administrator. If you are connecting to the home router, then you would put in the IP address of that router.

The destination name field displays the name users would see. If you aren’t going to connect right away, tick the “Don’t connect now; just set it up so I can connect later” box.

Leaving it unchecked means the client will try to make a connection at the end of the wizard. If there are multiple users on the Windows 7 box, you can either tick ”Allow other people to use this connection” to make the VPN connection available to others, or leave it unchecked to ensure no one else has the option.

Step 3. The next screen asks for a username and password. If you leave it blank, you will be prompted to enter the information when making the actual connection.

Step 4. The final window, if you selected “Don’t connect now,” will display a “Connect now” option. You can close the window now, or connect.

When you are ready to connect, just click on the network icon in the system tray (the icon could be for the wireless network or for the wired one) and the connection that was created earlier will show up in the list under “Dial-up and VPN.” You can also get here by clicking on “Connect to a network” under the Network and Sharing Centre.

Step 5. In the VPN connection box, enter the username and password to the VPN network, if it isn’t already pre-populated, along with the domain provided by the administrator. This connection should work for a majority of VPN networks.

Step 6. If the connection fails, click on Properties. The most common issue pertains to the server configuration. Select the “Security” tab in the Properties window. The “Type of VPN” should be set to Automatic. Check with the administrator if it should be set to PPTP, L2TP/IpSec, SSTP, or IKEv2. If it still doesn’t work, it’s possible you should uncheck “Include Windows logon domain” under the Options tab.

Step 7. After saving the properties, select Connect to launch the connection. You are now connected to a VPN server and your connection is safe.

Try A New DNS Server With A Fast Internet Connection

Category : 技术相关

When you type an address such as e-lins.com into your browser, your computers uses DNS to look up and translate that name into a computer-friendly IP address. Sometimes, though, the servers your computer uses to look up that information can have issues, or go down entirely. Check out our guide to finding the fastest DNS servers for more information. If your default DNS servers aren’t having problems, then you probably won’t find too much of an improvement with an alternative server — but it might speed up your browsing by a few milliseconds, at least. One reminder: if your provider offers unmetered browsing for services such as iView, be cautious when changing DNS details, since this can mean those services are metered and will count against your download allowance.

Six steps to make wireless router signal better

Category : 技术相关

E-lins’ll Tell you through six of the most useful fixes for Boosting your wireless router signal.

1.Change Your Wi-Fi routers operate on specific channels

2.Update router firmware

3.Update Adapter firmware.Just like routers, network adapters on PCs and laptops are also subject to firmware updates.

4.Set up a second router as an access point or repeater

5.Upgrade Router’s antennas

6.Stick to a single vendor

Common Use Windows Server Route Command

Category : 技术相关

List the 4 common used Route Command for Windows Server

1) route print    (display the current route table)
2) route add 192.168.8.0 mask 255.255.255.0 10.110.2.0 if 1 (add a static route)
3) route delete 192.168.8.0 (delete a static route)
4) route -p add 192.168.8.0 mask 255.255.255.0 10.110.2.0 (add a persistent/permanent route)