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What's the difference between an industrial wireless... Terminal devices have different data access interfaces Wireless router provides one network interface of data access, terminal equipment need only with the network IP address as a gateway to the IP address of the terminal device must use specified or specify the IP address in the address period, and specify the IP address...

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VRRP function on industrial grade router VRRP is a selection protocol that dynamically assigns the responsibilities of a virtual router to one of the VRRP routers on the LAN. The VRRP router, which controls the virtual router's IP address, is called the master router and it forwards packets to these virtual IP addresses. Once the primary router is unavailable,...

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工业网关的功能组成 网关(Gateway)又称网间连接器、协议转换器。网关在网络层以上实现网络互连,是最复杂的网络互连设备,仅用于两个高层协议不同的网络互连。网关既可以用于广域网互连,也可以用于局域网互连。 网关是一种充当转换重任的计算机系统或设备。使用在不同的通信协议、数据格式或语言,甚至体系结构完全不同的两种系统之间,网关是一个翻译器。与网桥只是简单地传达信息不同,网关对收到的信息要重新打包,以适应目的系统的需求。 4G工业网关的基本功能是连接两个异构网络,这在工业物联网场景中尤为常见,因为传感器网络经常使用完全不同于普通网络层(长距离传输网络)的电信号和协议。   4G工业网关功能组成   网络层信号接口 它主要承担网络层信号的对接任务。与感知层信号接口相比,网络层信号接口一般简单得多,因为通常整个系统只需要一个标准的长途网络及其协议,因此相应的硬件接口和数据收发软件相对简单。然而,这并不是说它只能支持一种类型。在实际应用中,工业网关的制造商通常被设计为支持多种形式的长途网络,以实现产品的通用性。特定的表单可以是同时配置多个接口的方式,也可以以配置插件卡的形式设计产品,以便用户可以在离开工厂时选择要配置的不同配置。   传感层信号接口 主要负责传感器网络中各设备信号的对接工作。该模块包括用于不同电信号对接的硬件接口,以及相应的数据采集和指令发送软件。为了解决感知层的复杂性,工业网关厂商将根据各自的目标应用领域,装备感知层信号接口的硬件接口和协议组合。   就地数据库 在一些用于复杂数据处理流程或其他就地业务逻辑处理的场景中,处理后的数据还需要存储在网关本地数据库中。由于工业网关一般属于嵌入式计算设备,所以这类数据库也一般采用嵌入式数据库。嵌入式数据库功能简单,具有内存缓冲,提高了访问速度。   就地的业务逻辑 它主要处理与网关相关的传感器网络部分所连接的设备、传感器和执行器相关的本地系统的业务逻辑。不同网关的本地业务逻辑模块的丰富性和复杂性差异很大。如果工业网关中没有这样的功能模块,它通常被称为数据传输网关、协议转换器或通信管理器。有关就地业务逻辑的详细描述,请参见边缘计算。   数据处理 设备端数据处理主要解决数据不匹配问题。也就是说,服务器所需数据的范围、频率、完整性等等。数据处理的目的是对输入接口中的数据进行排序,将其转换为适合输出的数据形式,并将其推送到输出接口。输入端和输出端可以由设备端或服务器端播放,因此数据流是双向的,并且根据数据类型的不同而不同。   其他功能 除了上面的主要模块之外,网关还常常配置它的功能用户界面,要么使用按钮、命令行(通过Telnet或串口),要么使用图形界面(例如内置的WEB服务器,甚至面板)。如果网关具有适当的业务逻辑,它可能还需要工具来加载脚本文件、配置文件,等等,这些都是本地业务逻辑所需要的。 作为一种远程设备,4G工业网关的自我维护也非常重要。一般情况下,需要利用自己与服务器连接的优势,从服务器上自动下载自己的软件更新包并完成更新。还应通过远程登录完成部分设置和配置工作,以降低外派人员的现场维护成本,提高对用户需求的响应速度。

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Functional composition of 4G industrial gateway The basic function of the 4G industrial gateway is to connect the two heterogeneous networks, which is particularly common in the industrial Internet of things scenario, because the sensor network often USES completely different electrical signals and protocols from the common network layer (long distance transmission network).   4G...

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网关和路由器之间的区别 网关是充当转换代理的计算机系统或设备。网关是两个系统之间的转换器,它们使用不同的通信协议,数据格式或语言,甚至是完全不同的体系结构。与简单传达信息的网桥不同,网关重新打包它们收到的信息以满足预期系统的需要。那么网关和路由器之间的区别是什么? 网关和路由器之间的区别如下: 路由器的作用是连接不同的网络并传输信息。根据用途,可分为:接入,企业级,骨干级,太比特,多WAN和3G无线等。 网关 网关可以是路由器,交换机或PC。对于同一网段内的通信,不必涉及网关。只有当主机和非本地网段设备通信时,才需要将所有数据包发送到网关设备,然后通过网关设备转发或路由它们。 路由器是一个网络层系统。一般来说,市场上的路由器分为两类,一类是单协议路由器,另一类是多协议路由器。路由器可以转换数据格式,成为与协议不同的网络互连的必要设备。 网关与路由的关系可以表示为:网关是网络连接的基础,路由是网络连接的桥梁。 路由器使用静态或动态路由来确定网络之间的最短路径。静态路由需要管理员手动设置,动态路由USES协议以动态发现网络之间的路径并确定最短路径。通常,静态路由用于小型网络,动态路由用于大型复杂网络。 现在,路由器集成了网关功能,因此路由器也具有网关功能。 网关和路由器之间的区别 从网关和路由器的定义来看,如果只连接两个网络,则只需要一个网关。 假设只有两个网络:网络A和网络B. 为了使网络A和网络B能够通信,只使用网关连接两个网络,因为只有两个网络,并且不需要确定网络之间的最短路径。 如果需要连接多个网络,为了确保网络的可靠性,需要将网络结构设计为完整网络或部分网络。通过这种方式,网络之间的通信需要两个设备,网关和路由器。由于当前路由器集成了网关的功能,因此只能使用一个设备路由器。

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What’s the difference between an industrial wireless router and a DTU

Category : 技术相关

Terminal devices have different data access interfaces

Wireless router provides one network interface of data access, terminal equipment need only with the network IP address as a gateway to the IP address of the terminal device must use specified or specify the IP address in the address period, and specify the IP address of the server host or IP address of the server host for data exchange, and all the other is not set between the address of the can’t communicate.

DTU data access generally also provides a serial port or network interface, but their use is used to dial, not used to do in the true sense of the gateway, such as serial interface DTU after completion of the access terminal dial-up, as a new network and terminal devices, terminal device address using the new network equipment binding address; And the network interface of DTU is similar to ADSL telecom Internet access, generally also need a device to complete a dial-up action.

 

Security of wireless access

Data exchange using wireless router is using a wireless router and the communication between the server to establish the safety of the tunnel, all of the data exchange can be to end (terminal) to end (server), and any other middle to end data are cannot communicate effectively, that is to say, at the ends of the wireless network provider will not be able to enter in any system.

DTU data exchange USES the internal data exchange process of the wireless network provider, which enables the wireless network provider to easily access any system at both ends of the communication.

 

Transmission security of terminal equipment

The terminal device using the wireless router must use the specified IP address. After the data of the terminal device passes through the wireless router, the wireless network is used to transmit the encrypted content. Generally, the data transmitted in the intercepted wireless network cannot be decrypted, and the encrypted data can only be decrypted correctly by the designated communication server. At the same time, all data has a unique corresponding serial number and other key processing to ensure that the terminal device data will not be replay or retransmission.

Use DTU the IP address of the terminal equipment use would not have such restrictions, so just can assign IP addresses can and to communicate with the server system, terminal equipment data after DTU, use the wireless network to transmit the contents of the general only through IP head processing, intercept wireless network transmission of data simply remove header information can speak transmission data display; At the same time, the data is not processed accordingly, which may lead to the replay or retransmission of wireless data, which will lead to the abnormality of the system, thus causing potential security risks.

 

Anti-interference of terminal equipment

Core system USES the wireless router is an embedded operating system, only can use very little data port, and the relationship between the terminal equipment is only a routing, so terminal equipment cannot reach the other end, even not be able to access other terminal equipment of the same type, even if there is a terminal device is controlled by a virus or by an outsider, is only affect the a terminal device, the other is not affected.

Terminal devices using DTU are related to DTU and can easily access other terminal devices. If a terminal device is controlled by a virus or an outsider, all terminal devices and the central server system will be seriously threatened.

 

Exchange data processing

Communication server is the core of wireless router, so the central server must be installed with a host for wireless router to communicate, and all data exchanged between devices must be encrypted, decrypted, verified and routed by it.

With DTU, there are no other intermediate servers, but direct connections to the central server.

VRRP function on industrial grade router

Category : 技术相关

VRRP is a selection protocol that dynamically assigns the responsibilities of a virtual router to one of the VRRP routers on the LAN. The VRRP router, which controls the virtual router’s IP address, is called the master router and it forwards packets to these virtual IP addresses. Once the primary router is unavailable, this selection process provides a dynamic failover mechanism, which allows the IP address of the virtual router to act as the default first-hop router for the terminal host. Is a LAN access device backup protocol. All hosts in a LAN set default gateway, so that messages sent by the host whose destination address is not in the local network segment will be sent to the three-layer switch through the default gateway, thus realizing the communication between the host and the external network.

VRRP is a fault tolerant routing protocol, which can also be called backup routing protocol. All hosts in a local area network set default routing. When the destination address sent by the host in the network is not in the local network segment, the message will be sent to the external router through default routing, thus realizing the communication between the host and the external network. When the default router is down (that is, the port is closed), the internal host will not be able to communicate with the external. If the router is set with VRRP, then the virtual router will enable the backup router to realize the whole network communication.

VRRP (Virtual Router Redundancy Protocol), Virtual routing Redundancy Protocol

Is a fault-tolerant protocol. Generally, all hosts in a network set a default route, so that messages sent by the host whose destination address is not in the local network segment will be sent to the router RouterA through the default route, thus realizing the communication between the host and the external network. When the router RouterA fails, all hosts in the segment with the default route of RouterA as the next hop will break the communication with the outside and cause a single point of failure. VRRP is proposed to solve the above problems. It is designed for local area networks (such as Ethernet) with multicast or multicast capabilities.

 

The working process of VRRP is as follows:

 

When the router turns on VRRP, it determines its role in the backup group based on priority. High-priority routers become primary routers and low-priority ones become standby routers. The host router sends VRRP notice messages regularly to inform other routers in the backup group that they are working normally. The standby router starts the timer to wait for the notification message to arrive.

 

In different preemptive modes, VRRP has different substitutions for the dominant role:

 

In preemption mode, when the standby router receives the VRRP notification message, it will compare its priority with the priority in the notification message. If it is greater than the priority in the notification message, it becomes the primary router. Otherwise, it will remain in a standby state.

 

In the non-preemptive mode, as long as the primary router does not fail, the router in the backup group will always remain in the primary or standby state, and the router in the backup group will not become the primary router even if it is later configured with higher priority.

 

If the standby router still does not receive the VRRP notification message sent by the host router after the timer timeout, the host router is deemed to have failed to work properly. At this time, the standby router will consider itself as the host router and send the VRRP notification message. The router in the backup group elects the primary router according to its priority and assumes the forwarding function of the message.

 

E-Lins H685 series 4G router with Ethernet is a compact, ruggedized 3G/4G/LTE cellular networking solution designed for mission-critical connectivity in the most challenging environments. It is qualified for M2M (Machine to Machine), IoT (Internet of Things) and In-Vehicle applications. Super mini size suitable for embedding applications.

 

The difference between a gateway and a router

Category : 产品文章, 技术相关

A gateway is a computer system or device that ACTS as a transformation agent. A gateway is a translator between two systems that use different communication protocols, data formats, or languages, or even completely different architectures. Unlike Bridges that simply convey information, gateways repackage the information they receive to suit the needs of the intended system. So what’s the difference between a gateway and a router?

 

The differences between a gateway and a router are as follows:

 

The role of a router is to connect different networks and transmit information. According to usage, it can be divided into: access, enterprise level, backbone level, terabit, multi-WAN and 3G wireless, etc.

 

The gateway

 

A gateway can be a router, switch, or PC. For communication within the same network segment, it is not necessary to involve the gateway. Only when the host and non-local network segment devices communicate, it is necessary to send all the data packets to the gateway device, and then forward or route them through the gateway device.

 

Router is a network layer system. Generally speaking, routers in the market are divided into two categories, one is single-protocol router, and the other is multi-protocol router. The router can transform the data format and become a necessary device for network interconnection different from protocols.

 

The relationship between gateway and route can be expressed as: gateway is the foundation of network connection, and route is the bridge of network connection.

 

Routers use static or dynamic routing to determine the shortest path between networks. While static routing requires an administrator to set it manually, dynamic routing USES protocols to dynamically discover paths between networks and determine shortest paths. Typically, static routing is used for small networks and dynamic routing is used for large complex networks.

 

Now, routers integrate gateway functionality, so routers also have gateway functionality.

 

The difference between a gateway and a router

From the definition of gateway and router, if you simply connect two networks, you only need a gateway.

Suppose there are only two networks: network A and network B

To enable network A and network B to communicate, only use the gateway to connect the two networks, because there are only two networks, and do not need to determine the shortest path between the networks.

 

If multiple networks need to be connected, in order to ensure the reliability of the network, the network structure needs to be designed as a full network or a partial network. In this way, two devices, gateway and router, are needed for the communication between networks. Because the current router integrates the functions of the gateway, only one device, router, can be used.

The E-Lins H685 series 4G router with Ethernet is a compact, ruggedized 3G/4G/LTE cellular networking solution designed for mission-critical connectivity in the most challenging environments. It is qualified for M2M (Machine to Machine), IoT (Internet of Things) and In-Vehicle applications. Super mini size suitable for embedding applications.

In addition to the robustness, reliability, security, friendly-using, the H685 4G router with Ethernet is competent to be engineered to protect against extreme temperatures, humidity, shocks, vibrations, dust, reverse polarity, and transient voltage, which is widely used in more than twenty industrial fields, such as CCTV security surveillance, AMR, vehicle, retails, vending machines, power control, water schedule, traffic, oil field, weather forecast, environmental protection, street lamp control, post, bank and many other fields.

工业路由器的VPN

Category : 技术相关

VPN通常是指虚拟专用网络,它只是在公共网络上建立的专用网络,用于加密通信。 VPN功能是在加密数据包时实现目标地址转换和远程访问。因此,工业VPN路由器非常适合项目的数据传输安全要求。工业路由器是在普通路由器的基础上增加的工业要求,而工业VPN路由器是在工业路由器的基础上增加的VPN功能。为什么工业路由器会设置VPN功能?那么VPN功能的好处是什么?

VPN工业路由器

VPNS允许您在复杂的公共网络中工作而无需担心安全性。当然,这也是工业VPN路由器的基本功能;

2.可以解决多台设备同时组网,随时使用VPN功能的问题。登录后不再需要繁琐的操作,并且需要连接每个设备。只要你切换网络,就可以选择使用或不使用VPN功能来达到开箱即用的效果;

3,一些连接设备联网,一些需要使用本地网络,一些使用VPN网络,这样可以错开使用;

4.工业VPN路由器可以连接多个终端和一个账号,不再担心VPN账号会限制连接终端的数量;

工业路由器

5.市场上大多数工业路由器已经支持VPN中的PPTP连接模式,而万无一失的操作设置不再是专家的专利。

VPN在工业,商业和民用领域非常受欢迎。它们可以使网络传输更安全,更专业,更自由。工业VPN路由器的分类工业VPN路由器的常见分类是PPTP,L2TP,IPSEC。最常见的是PPTP协议。如上所述,市场上的大多数工业路由器都具有PPTP安全协议,即点对点隧道协议。使远程用户能够通过拨入ISP,直接连接到Internet或通过其他网络安全地访问企业网络。 L2TP是一种行业标准的VPN网络传输隧道协议,在功能上类似于PPTP协议。例如,它还可以加密网络数据流。

区别在于PPTP使用单个隧道,L2TP使用多个隧道。 L2TP提供数据包头压缩和隧道验证,而PPTP则不提供。 IPSEC安全协议通过端到端安全提供主动保护和防止攻击,端到端安全是安全网络的长期方向。在通信中,只有发送方和接收方是唯一知道IPSEC保护的计算机。 IPSec安全服务需要支持共享密钥以进行身份​​验证和机密性,并且需要手动输入密钥。如何设置工业VPN路由器不同品牌的工业VPN路由器有不同的设置,因为设置和内置网页设置都是由厂家制作的。但功能相同,设置大致相同。

配备以太网的伊林思 H685系列4G全网通路由器是一款紧凑,坚固的3G / 4G / LTE蜂窝网络解决方案,专为在最具挑战性的环境中的关键任务连接而设计。它适用于M2M(机器到机器),物联网(物联网)和车载应用。超迷你尺寸适合嵌入应用。

除了坚固性,可靠性,安全性,友好​​使用外,带有以太网的H685 4G全网通路由器能够设计用于防止极端温度,湿度,冲击,振动,灰尘,反极性和瞬态电压,这是广泛使用的在中央电视台安防监控,AMR,车辆,零售,自动售货机,电力控制,水上计划,交通,油田,天气预报,环境保护,路灯控制,邮政,银行等许多领域的二十多个工业领域。

Why would industrial routers set up VPN capabilities

Category : 产品文章

Industrial router is the industrial version added on the basis of ordinary router, while industrial VPN router is the VPN function added on the basis of industrial router. VPN generally refers to a virtual private network, which is simply a private network established on a public network for encrypted communication. VPN function is to achieve the target address conversion and remote access while encrypting the packet. Therefore, the industrial VPN router is very suitable for the data transmission security requirements of the project. Why would an industrial router set up a VPN function? So what are the benefits of the VPN feature?

VPN industrial router

VPNS allow you to work in a complex public network without worrying about security. Of course, this is also the basic function of industrial VPN routers;

2. It can solve the problem of networking with multiple devices at the same time and using the VPN function at any time. No more tedious operation after login and connection of each device is needed. As long as you switch a network, you can choose to use or not to use VPN function to achieve the effect of out-of-the-box;

3, a number of connected devices networking, some need to use local network, some use VPN network, so you can stagger the use of;

4. The industrial VPN router can connect multiple terminals with one account, no longer having to worry that the VPN account will limit the number of connected terminals;

Industrial router

5. Most of the industrial routers on the market have already supported the PPTP connection mode in the VPN, and the foolproof operation Settings are no longer the patent of the experts.

VPNS are very popular in industrial, commercial and civil applications. They can make network transmission more secure, professional and free. Classification of industrial VPN routers common classification of industrial VPN routers are PPTP, L2TP, IPSEC. The most common one is PPTP protocol. As mentioned above, most industrial routers on the market have PPTP security protocol, namely point-to-point tunnel protocol. Enables remote users to safely access the enterprise network through dialing into an ISP, through a direct connection to the Internet, or over other networks. L2TP is an industry standard VPN network transmission tunnel protocol, which is similar to the PPTP protocol in function. For example, it can also encrypt network data streams.

The difference is that PPTP USES a single tunnel and L2TP USES multiple tunnels. L2TP provides packet head compression and tunnel validation, while PPTP does not. IPSEC security protocol provides active protection and prevention of attacks through end-to-end security, which is the long-term direction of secure networking. In communications, only the sender and receiver are the only computers that are aware of IPSEC protection. IPSec security services require support for Shared keys for authentication and confidentiality, and require manual key entry. How to set up an industrial VPN router different brands of industrial VPN routers have different Settings, because the Settings and built-in web page Settings are made by the manufacturer. But the functionality is the same, and the setup is much the same.

The E-Lins H685 series 4G router with Ethernet is a compact, ruggedized 3G/4G/LTE cellular networking solution designed for mission-critical connectivity in the most challenging environments. It is qualified for M2M (Machine to Machine), IoT (Internet of Things) and In-Vehicle applications. Super mini size suitable for embedding applications.

In addition to the robustness, reliability, security, friendly-using, the H685 4G router with Ethernet is competent to be engineered to protect against extreme temperatures, humidity, shocks, vibrations, dust, reverse polarity, and transient voltage, which is widely used in more than twenty industrial fields, such as CCTV security surveillance, AMR, vehicle, retails, vending machines, power control, water schedule, traffic, oil field, weather forecast, environmental protection, street lamp control, post, bank and many other fields.

Why are industrial routers so popular

Category : 其他

Industrial-grade wireless routers use high-performance 32-bit industrial-grade processors, which are widely used in finance, electric power, postal service, water conservancy, environmental protection, meteorology and other industries. So what are industrial-grade wireless routers for, and why are they so popular?

 

Industrial-grade wireless routers

 

Industrial router is mainly used in intelligent transportation, environmental monitoring, security monitoring, security, wireless mobile detection, industrial data transmission, the financial industry, power industry, water conservancy industry, etc., support – 30 + 75 temperature, wide application. And civil routing is mainly family indoor use, so the adaptability to environment requirement is not high, the temperature only for 0 ~ 55 .

 

The industrial router adopts rugged industrial appearance design, IP30 protection, built-in high-performance industrial-grade 32-bit communication processor wireless module, with embedded real-time operating system as the software support platform, and can be connected to serial devices, Ethernet devices or WIFI devices at the same time.

 

Support APN/VPDN private network, at the same time the device has IPSEC, PPTP, L2TP, GRE, OPENVPN VPN connection, with VPN client, server and other functions. Civil route even some do not have firewall, data security is low.

 

Why are industrial-grade routers so popular?

In the industrial environment, due to the increasing demand for transmission speed and data volume, industrial-grade products are widely used to ensure more high-speed and smooth data exchange. After careful analysis of today’s connector supply market, shenzhen E-Lins is an M2M wireless communication backbone enterprise, which mainly provides: industrial wireless router, wireless data terminal,GPRS DTU,CDMA DTU,3G router,4G router, gateway, etc.

 

Industrial-grade wireless routers

As an industrial-grade router, the industrial-grade 4G router is more powerful than the ordinary household router in many aspects. Generally speaking, the well-known industrial-grade 4G router has the following advantages in the use process.

 

1. High stability

One of the major advantages of industrial-grade 4G routers is their high stability in data transmission and reception. It USES high performance industrial-grade wireless modules and industrial-grade high stability and high precision components, so that it can resist outdoor harsh environment without data transmission interruption or loss.

 

 

 

2. Fast data transmission and processing

 

 

Compared with ordinary routers, industrial-grade 4G routers use high-performance CPU processors, so they can transmit and process data several times faster than ordinary routers. They can satisfy more people to connect to the network at the same time, and the transmission distance is longer and the coverage is larger.

 

 

 

3. Powerful functions

 

 

Advanced industrial-grade 4G routers have more powerful functions than ordinary routers. For the average home router, the function is simple as long as it can connect to the network normally. But for industrial control industry, routers need more functions to run normally. Industrial-grade 4G routers have corresponding functions to meet the needs of different fields. If other special functions are needed, you can also choose customized products.

 

 

 

The main advantages of the industrial-grade 4G router are its high stability, fast data processing speed and powerful functions. In addition, the number of ports it provides and the strong wireless signal receiving ability are also its own advantages. Because industrial-grade 4G routers are often used in high-end fields or in complex outdoor conditions, they must have more functions and advantages to meet people’s needs.

Differences between industrial router and modem

Category : 产品文章

Industry level SMS cat is based on mobile GSM/GPRS network platform, embedded with industry level GSM/GPRS wireless module SMS and Internet devices. Modems are essential to computer networking, and because routers are often used with modems, many people confuse them. So, what are the differences between modems and routers?

 

Industrial MODEM is a modular product specially developed for remote control, remote data acquisition system and remote distributed control system. It is similar in shape to the size of business card, and is easy to connect with the user board.

 

 

What are the differences between industrial modems and routers

 

 

1. Different functions

 

Modem is a necessary equipment of computer networking, a dial-up modem computer can, and the router is a way to help multiple computers share a network device, with the help of the router, several computers can be in the same Internet line access to the Internet, however, necessary equipment of the router is not the Internet, no router, the computer can still connected to the Internet through modem.

 

 

2. Different connection modes

 

Due to the different functions, the two are connected in different ways. One end of a modem is connected to a telephone line, and the other end is connected to a computer or a router.

 

 

3. Different appearance

 

The modem has a simple shape, like a flat rectangular box, which is very small, while the router has a variety of shapes, including rectangular shape and oval shape, with a larger volume than the modem on the whole. In addition, the wireless router also has a number of different antenna devices.

 

4. Different ports

 

Modems generally have only two ports, one for the phone line and one for the Internet, while routers have more ports. Usually, there are five ports, one for the modem, and the rest can be connected to one or more computers at will.

 

Industry modem application:

 

Industrial modem applications are based on cabled data communication, and the industrial RS232 interface (RS232 or TTL level) is suitable for power, oil, telecommunications, military and other unmanned environments. Suitable for various industrial PC, meter reading system, remote control system, SCM remote data communication system;

 

Application: post and telecommunications, finance, power, government, transportation, military, enterprise and other data networks.

 

High-speed line :Internet access, lan-lan connection.

 

The E-Lins H700 series 4G router with Ethernet is a compact, ruggedized 3G/4G/LTE cellular networking solution designed for mission-critical connectivity in the most challenging environments. It is qualified for M2M (Machine to Machine), IoT (Internet of Things) and In-Vehicle applications. Super mini size suitable for embedding applications.

In addition to the robustness, reliability, security, friendly-using, the H685 4G router with Ethernet is competent to be engineered to protect against extreme temperatures, humidity, shocks, vibrations, dust, reverse polarity, and transient voltage, which is widely used in more than twenty industrial fields, such as CCTV security surveillance, AMR, vehicle, retails, vending machines, power control, water schedule, traffic, oil field, weather forecast, environmental protection, street lamp control, post, bank and many other fields.

 

Highlights:

Multi-carrier 2G/3G/4G LTE support with dual SIM card slot

Cellular/WAN RJ45/WiFi client failover and Load Balance (Bandwidth link bonding)

Supports LTE Advanced with SIM-based auto-carrier selection

Cloud-managed (with NMS network management system), TR-069, Web management, SMS, SSH/Telnet/Command, SNMP

WiFi (802.11 a/b/g/n, 2.4Ghz)

Certified 3G/4G/LTE enterprise/industrial grade internal modems

Built-in transient and reverse polarity voltage protection, over-current and over-voltage protection;

5-40V DC voltage input range (5-60V DC option), Dual Power Inputs / Power Failover;

GPS / GNSS support

Serial Port support RS232+RS232 or RS232+RS485

DI/DO port * 4

Supports Ethernet (T1, DSL, Cable, MetroE), WiFi as WAN, and Metro WiFi

Ruggedized to ensure always-on connectivity

Create real-time alerts to monitor uptime

Offer secure, guest WiFi to passengers

Advanced security, VPN, and stateful firewall to protect sensitive data

Robust Metal Case is ruggedized for vibration, shock

Desktop, Wall-mount and Din-rail mount of installation

External antenna connectors for high gain antennas replacement

MIMO supported

 

All E-Lins communication terminals can be connected to the E-Lins remote managing and controlling platform (NMS), which brings the generous devices scattering in different areas to carry out concentrate monitor, configuration, updated, diagnose, maintenance, manage and control. Highly reduce the maintenance costing in the operator, integrator, devise supplier etc, increase the managing efficiency.

The detailed difference between 4G industrial router and 4G DTU

Category : 产品文章, 技术相关

 

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 of use:

 

4G industrial router:

 

The 4G router can convert Ethernet and fieldbus communication protocols. It only needs to set the IP address specified by the 4G router in the terminal device as the gateway. If the specified IP address (or the specified IP address segment) is not set, the communication function cannot be realized.

 

4 g DTU:

 

The main purpose of 4G DTU is to realize dial-up rather than a real gateway. For example, 4G DTU can be used as a new network device after the dialing process of the access terminal device is completed, and the terminal device address can be used as the binding address of 4G DTU.

 

Different application environments:

 

4G router: usually with VPN/APN function, with private network encryption, in addition, the industrial 4G router with WIFI function is suitable for outdoor WIFI wireless signal coverage projects and similar public transport WIFI and shopping mall WIFI sharing projects.

 

4G DTU: the transmission distance of field terminals is relatively scattered and the data communication rate is relatively high, so the real-time performance of 4G DTU can meet the requirements of most industrial fields and is usually used for data acquisition and monitoring system. For example, the charging pile remote monitoring system, environmental monitoring system, real-time monitoring of energy consumption, monitoring and application of dam water conservancy projects, etc.

 

Different network interfaces:

 

4 g router: provides one network interface of data access, terminal equipment needs only the IP address of the mouth to the 4 g router in the network as a gateway to the IP address of the terminal device must use specified or specify the IP address in the address period, 4 g router to and specify the IP address of the server host or server host IP address sections for data exchange, and all the other 4 g router is not set between the address of the can’t communicate.

 

4 g DTU

 

4 g DTU: DTU data access in general also provides a serial port or network interface, but their use is used to dial, not used to do in the true sense of the gateway, such as serial interface 4 g DTU after completion of the access terminal dial-up, 4 g DTU as terminal equipment of a new network equipment, terminal equipment address using the new network equipment binding address; However, 4G DTU of network interface is similar to ADSL of telecommunication to connect to the Internet, which generally requires the device to complete a dial-up action.

 

Different anti-interference of server network:

 

When using 4G router, the data transmission must comply with the preset regulations, otherwise, the correct communication can not be carried out, reducing the possibility of unnecessary network traffic; At the same time, according to the sent serial number and other key processing, to ensure that the server data will not be replay or retransmission.

 

4G DTU does not carry out relevant filtering during data transmission, so other machines can directly send some illegal information to the device terminal through the network. Meanwhile, 4G DTU increases unnecessary network traffic. At the same time, the data is not processed accordingly, which may lead to the replay or retransmission of wireless data, which will lead to the abnormity of the system, thus causing potential security risks.

 

The E-Lins H685 series 4G router with Ethernet is a compact, ruggedized 3G/4G/LTE cellular networking solution designed for mission-critical connectivity in the most challenging environments. It is qualified for M2M (Machine to Machine), IoT (Internet of Things) and In-Vehicle applications. Super mini size suitable for embedding applications.

In addition to the robustness, reliability, security, friendly-using, the H685 4G router with Ethernet is competent to be engineered to protect against extreme temperatures, humidity, shocks, vibrations, dust, reverse polarity, and transient voltage, which is widely used in more than twenty industrial fields, such as CCTV security surveillance, AMR, vehicle, retails, vending machines, power control, water schedule, traffic, oil field, weather forecast, environmental protection, street lamp control, post, bank and many other fields.

 

Highlights:

Multi-carrier 2G/3G/4G LTE support with SIM card slot

Cellular/WAN RJ45/WiFi client failover and Load Balance (Bandwidth link bonding)

Supports LTE Advanced with SIM-based auto-carrier selection

Cloud-managed (with NMS network management system), TR-069, Web management, SMS, SSH/Telnet/Command, SNMP

WiFi (802.11 a/b/g/n, 2.4Ghz)

Certified 3G/4G/LTE enterprise/industrial grade internal modems

Built-in transient and reverse polarity voltage protection, over-current and over-voltage protection;

5-40V DC voltage input range (5-60V DC option), Dual Power Inputs / Power Failover;

POE (Power over Ethernet)

GPS / GNSS support

Serial Port

DI/DO port * 4

Supports Ethernet (T1, DSL, Cable, MetroE), WiFi as WAN, and Metro WiFi

Ruggedized to ensure always-on connectivity

Create real-time alerts to monitor uptime

Offer secure, guest WiFi to passengers

Advanced security, VPN, and stateful firewall to protect sensitive data

Robust Metal Case is ruggedized for vibration, shock

Desktop, Wall-mount and Din-rail mount of installation

External antenna connectors for high gain antennas replacement

MIMO supported

 

All E-Lins communication terminals can be connected to the E-Lins remote managing and controlling platform (NMS), which brings the generous devices scattering in different areas to carry out concentrate monitor, configuration, updated, diagnose, maintenance, manage and control. Highly reduce the maintenance costing in the operator, integrator, devise supplier etc, increase the managing efficiency.

What is a single/dual frequency wireless 4G router

Category : 产品文章

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 router works in two frequency bands of 2.4ghz and 5GHz, with less interference in 5GHz band. Currently, more and more mobile phones, laptops and other terminals in the market support 5GHz band (if all terminals at home do not support 5GHz band, it is recommended to choose single-frequency router; If you have a terminal that supports 5GHz band, it is recommended to choose a dual-frequency router for better wireless network speed experience.

 

Second. The difference between single/dual frequency wireless routers

The differences between single and dual frequency wireless routers mainly focus on signal range, transmission power, stability and anti-interference.

1. Compared with single frequency, dual frequency has a wider signal coverage. Dual-band wireless routers are more suitable for the complex structure of the house.

2. Dual-frequency wireless routers are more stable than single-frequency wireless devices.

3. Dual frequency wireless router has strong anti-interference performance.

 

Third. Choose “single frequency” or “dual frequency” for wireless router

As the name suggests, dual-band mainly refers to two types of wireless frequency bands: 2.4GHZ and 5GHZ, respectively. Compared with our ordinary router, 5G frequency band is added. Why do we need to add 5G frequency band?

 

In the 2.4ghz band, there are wireless buttons and mice, wireless earphones, bluetooth devices, etc., which also make this band very crowded. Moreover, it is equivalent to a good road, but there are too many cars, which start to cause serious congestion. Therefore, when using the wireless router working in the 2.4ghz band, we will often find that there are problems such as poor wireless signal, network congestion and frequent dropping of the line. There are a lot of household appliances in use will produce 2.4G interference, refrigerator, computer, microwave oven, electric cooker and so on, microwave oven is undoubtedly the most serious interference to wireless signal electrical appliances, so in the layout of the router, we should try to avoid all kinds of home appliances.

 

 

 

There will be interference within the same region, and in general, it will be difficult to get a perfect experience at 2.4g. . At that time if you choose 5 GHZ band patterns will be effective to avoid the spectrum signal interference, a corresponding transmission of wireless signal further, besides dual-band router in the family, almost no other things have a 5 g signals, and in the 5 GHZ frequency band, the mutual interference of channel working 22, considerably more than the mutual interference of 2.4 GHZ channel number. Like a 3-lane highway or a 22-lane highway, which is more accessible is self-evident.

 

 

 

In a word, dual-band routers, although usually more expensive, are definitely better than single-band (2.4ghz) routers. In terms of performance, dual-band routers are much stronger, with more stable signals, wider coverage and stronger penetration.

 

E-Lins has dual band routers H700&H820Q:

 

Among them, H700 is a more comprehensive product. The H700 series Cellular Router is designed for establish a 2G/3G/4G cellular wireless network and share a cellular broadband internet connection. The H700 series Cellular Router enables users to quickly create a secure Wi-Fi (802.11 b/g/n) network and provide access to the internet using a cellular network. By connect to cellular broadband network; an internet connection can be accessed and shared virtually anywhere within a wireless broadband network.

 

E-Linsmobile data products are widely used in more than twenty industrial fields, such as power control, water schedule, traffic, oil field, weather forecast, environmental protection, street lamp control, post, bank and many other areas.

 

H700 series support single module dual sim cards or dual module dual sim cards

A1) work with one sim card.

A2) work with two sim card. Two sim card backup each other (cold standby for failure backup).

 

 

Main:

Built-in 2G/3G/4G industrial cellular module, insert SIM/UIM card to work directly;

Built-in two sim card slots;

RJ45 LAN *4;

RJ45 WAN *1;

DB9*1

USB3.0*1

Terminal socket GPIO*1

SD card slot*1

 

Option feature:

1.WiFi

2.GPS

3.Serial to cellular gateway (RS232 or RS485 port)

4.DIO

 

Redundancy backup: cellular1+ cellular 2+ WAN RJ45

Industrial Application:

lRemote Data Monitor and Control

lCCTV, security surveillance

lWater, gas and oil flow metering and schedule

lAMR (automatic meter reading)

lPower station monitoring and control

lRemote POS (point of sale) terminals, ATM

lTraffic signals monitor and control, Traffic info guidance

lOil field, weather forecast, environmental protection, street lamp monitoring and control

lEarly Warning of Mountain Torrent

lFleet management

lPower distribution network supervision

lCentral heating system supervision

lWeather station data transmission

lHydrologic data acquisition

lVending machine

lTelemetry, SCADA

lVehicle logistics and diagnostics controlling

lParking meter and Taxi Monitor

lTelecom equipment supervision (Mobile base station, microwave or optical relay station)

Wireless communication DTU features

Category : 产品文章

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 security and confidentiality;

 

 

Functional features:

 

1. Internal integration of TCP/IP protocol stack

 

GPRS DTU internally encapsulates PPP dial-up protocol and TCP/IP protocol stack and has an embedded operating system. From the perspective of hardware, it can be seen as the combination of embedded PC and wireless GPRSMODEM. It has the function of GPRS dial-up Internet and TCP/IP data communication.

 

2. Provide bidirectional conversion of serial data

 

GPRS DTU provides serial communication interface, including RS232 and RS485, RS422, etc are the commonly used serial communication mode, and GPRS DTU serial data into mostly on the design “transparent conversion” approach, that is to say, GPRS DTU can transform a serial port on the original data into TCP/IP packet transmission, and don’t need to change the original data communication content. As a result, GPRS DTU can be connected to a variety of user devices that use serial communication, and no changes are required to the user devices.

 

3, support automatic heartbeat, keep online forever

 

Is one of the advantages of GPRS communication network support GPRS terminal equipment permanently online, so typical of GPRS DTU are designed to support the permanent online function, which requires the DTU contains the heartbeat packets on electric automatic dialing, use to maintain permanent online (when long time data communication, mobile gateway connect DTU disconnected from center, heartbeat packets is DTU with data center to send a small data before the connection is disconnected, to keep connection is disconnected don’t), automatic reconnection, the bolt support automatic dialing, etc.

 

4, support parameter configuration, permanent save

 

As a kind of communication equipment, GPRS DTU is widely used. In different applications, the data center IP address and port number, serial port baud rate are different. Therefore, GPRS DTU should support parameter configuration and save the configured parameters in internal permanent storage devices (generally FLASH or EEPROM, etc.). Once powered on, it will automatically work according to the set parameters.

 

5. Support setting of user serial port parameters

 

The serial port parameters of different user devices are different. When DTU connects the serial port of user devices, the DTU terminal should be set according to the actual parameters of the serial port of user devices to ensure the normal communication and reliable data transmission of user devices.

 

Working process:

 

GPRS DTU initiates a TCP or UDP communication request to the data center through parameters such as the IP address of the data center (if the domain name of the data center is used, the IP address of the center will be resolved through the domain name of the center) and port number. Upon receiving the response from the center, GPRS DTU is deemed to have successfully shaken hands with the center, and then the communication connection is maintained. If the communication connection is interrupted, GPRS DTU will immediately shake hands with the center again. Now that the TCP/UDP communication connection has been established, data two-way communication is possible.

 

Application:

Power industry, water conservancy industry, oil industry, municipal industry, environmental protection industry, agricultural application, etc.

 

As Industrial grade router, the E-Lins H685 series 4G router with Ethernet is a compact, ruggedized 3G/4G/LTE cellular networking solution designed for mission-critical connectivity in the most challenging environments. It is qualified for M2M (Machine to Machine), IoT (Internet of Things) and In-Vehicle applications. Super mini size suitable for embedding applications.

In addition to the robustness, reliability, security, friendly-using, the H685 4G router with Ethernet is competent to be engineered to protect against extreme temperatures, humidity, shocks, vibrations, dust, reverse polarity, and transient voltage, which is widely used in more than twenty industrial fields, such as CCTV security surveillance, AMR, vehicle, retails, vending machines, power control, water schedule, traffic, oil field, weather forecast, environmental protection, street lamp control, post, bank and many other fields.