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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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Industrial-grade 4G router TCP/IP network architecture 1. Layering of TCP/IP network system   TCP/IP (TransmissionControlProtocol/InternetProtocol), transmission control protocol/Internet protocol. It was developed by the defense advanced research projects agency in the 1970s, and was later integrated into UNIX and popularized. It emerged in the 1980s as the Internet's...

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The structure of 4G DTU The main function of DTU is to transmit data from remote devices back to the background center via wired/wireless. Different data transmission modes of DTU include all-network-connected DTU, GPRS DTU, WIFI DTU, CAN DTU and 4G DTU. Today, we will have a look at the structure and work flow of DTU.   To complete...

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What are the wireless connection technologies of the... Internet of things (iot) applications have been deeply rooted in our lives. The E-Lins H685 industrial-grade router is a small industrial-grade wireless router with single or double LAN ports. TDD/ fdd-lte, 4G, 3G, GPRS network optional. Besides, what are the wireless connectivity technologies for the Internet of things?   1....

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The use of industrial wireless routers Industrial-grade wireless router adopts high performance 32-bit industrial-grade ARM9 communication processor, which is widely used in finance, electric power, postal, water conservancy, environmental protection, meteorology and other industries.   Industrial router is mainly used in intelligent transportation,...

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Radio module ME909u-523 mini PCIe for Wireless M2M

Category : 技术相关

Specification

ME909u-523 Mini PCIe is a variant of ME909u-523 with standard Mini PCIe form factor, which is from ME909u family. It is high-quality designed LTE module which specially for industrial-grade M2M applications such as vehicle telematics, tracking, mobile payment, industrial router, safety monitor and industrial PDAs.
ME909u-523 Mini PCIe supports 100Mbps downlink and 50Mbps uplink data rate, includes enhanced features like FOTA, USSD and Huawei enhanced AT commands.

 

Size and Weight

Height:30.4mm
Width:51mm
Depth:3.4mm
Weight:<15g

Supported Bands

ME909u-523 Mini PCIe:
LTE (FDD) B2/B4/B5/B17
DC-HSPA+/HSPA+/HSPA/UMTS tri-band 850/1900/AWS MHz

Data Transfer Rate
DC-HSPA+ :D ownlink:42 Mbps, Uplink: 5.76 Mbps
LTE FDD: Downlink:100 Mbps, Uplink: 50 Mbps @Bandwidth 20M (CAT3)
Interface
Antenna connector
PCIe interface
USB 2.0 High speed
SIM Card
Reset

Power Supply
3.0 V to 3.6 V (3.3 V recommended)

GPS/Glonass
GPS Standalone
A-GPS

 

ME909u-521 radio module for Wireless M2M

Category : 技术相关

Specification

ME909u-521 (for Asia, Europea, Africa) Mini PCIe is a variant of ME909u-521 with standard Mini PCIe form factor, which is from ME909u family. It is high-quality designed LTE module which specially for industrial-grade M2M applications such as vehicle telematics, tracking, mobile payment, industrial router, safety monitor and industrial PDAs.
ME909u-521 Mini PCIe supports 100Mbps downlink and 50Mbps uplink data rate, includes enhanced features like FOTA, USSD and Huawei enhanced AT commands.

 

Size and Weight

Height:30.4mm
Width:51mm
Depth:3.4mm
Weight:<15g

Supported Bands

ME909u-521 Mini PCIe:
LTE (FDD) B1/B2/B3/B5/B7/B8/B20
DC-HSPA+/HSPA+/HSPA/UMTS dual-band B1/B2/B5/B8
EDGE/ GPRS/ GSM quad-band 850/900/1800/1900 MHz

Data Transfer Rate
DC-HSPA+ :D ownlink:42 Mbps, Uplink: 5.76 Mbps
LTE FDD: Downlink:100 Mbps, Uplink: 50 Mbps @Bandwidth 20M (CAT3)

Interface

Antenna connector
PCIe interface
USB 2.0 High speed
PCM Voice
SIM Card
Reset

Power Supply
3.0 V to 3.6 V (3.3 V recommended)

GPS/Glonass
GPS Standalone
A-GPS

 

Advantages and Disadvantages of 4G LTE TECNOLOGY

Category : 技术相关

Today we talk some advantages and disadvantages of 4G LTE TECNOLOGY.  4G LTE is the 4th generation wireless mobile networks.  With high data speed, the 4G can reach 100Mbps, 150Mbps and 300Mbps, future will update to 1000Mbps.

Advantages
-support for interactive multimedia, voice, streaming video, Internet, and other broadband services -IP based mobile system-High speed, high capacity, and low cost per bit. -global access, service portability, and scalable mobile services -Seamless switching and a variety of Quality of

-Better spectral efficiency. Service driven services.
- Better scheduling and call admission control techniques

Disadvantages
-Expensive and hard to implement
-bettery usage is more
-needs complex hardware

TDD LTE and FDD LTE’s Advantages / disadvantages of for cellular communications

Category : 技术相关

Let’s talk something about TDD LTE and FDD LTE’s Advantages / disadvantages of for cellular communications.

As we know, the LTE mainly covers two types, which are TDD and FDD. There are a number of the advantages and disadvantages of TDD and FDD that are of particular interest to mobile or cellular telecommunications operators. These are naturally reflected into LTE.

COMPARISON OF TDD LTE AND FDD LTE DUPLEX FORMATS
PARAMETER TDD LTE FDD LTE
Channel reciprocity Channel propagation is the same in both directions which enables transmit and receive to use on set of parameters Channel characteristics different in both directions as a result of the use of different frequencies
Paired spectrum Does not require paired spectrum as both transmit and receive occur on the same channel Requires paired spectrum with sufficient frequency separation to allow simultaneous transmission and reception
Hardware cost Lower cost as no diplexer is needed to isolate the transmitter and receiver. As cost of the UEs is of major importance because of the vast numbers that are produced, this is a key aspect. Diplexer is needed and cost is higher.
UL / DL asymmetry It is possible to dynamically change the UL and DL capacity ratio to match demand UL / DL capacity determined by frequency allocation set out by the regulatory authorities. It is therefore not possible to make dynamic changes to match capacity. Regulatory changes would normally be required and capacity is normally allocated so that it is the same in either direction.
Guard period / guard band Guard period required to ensure uplink and downlink transmissions do not clash. Large guard period will limit capacity. Larger guard period normally required if distances are increased to accommodate larger propagation times. Guard band required to provide sufficient isolation between uplink and downlink. Large guard band does not impact capacity.
Cross slot interference Base stations need to be synchronised with respect to the uplink and downlink transmission times. If neighbouring base stations use different uplink and downlink assignments and share the same channel, then interference may occur between cells. Not applicable
Discontinuous transmission Discontinuous transmission is required to allow both uplink and downlink transmissions. This can degrade the performance of the RF power amplifier in the transmitter. Continuous transmission is required.

 

what is 4g lte for wireless M2M

Category : 技术相关

What is LTE?

LTE (Long-Term Evolution, commonly marketed as 4G LTE) is a standard for wireless communication of high-speed data for mobile phones and data terminals. It is based on the GSM/EDGE and UMTS/HSPA network technologies, increasing the capacity and speed using a different radio interface together with core network improvements. The standard is developed by the 3GPP (3rd Generation Partnership Project) and is specified in its Release 8 document series, with minor enhancements described in Release 9.

LTE is the natural upgrade path for carriers with both GSM/UMTS networks and CDMA2000 networks. The different LTE frequencies and bands used in different countries will mean that only multi-band phones will be able to use LTE in all countries where it is supported.

Although marketed as a 4G wireless service, LTE (as specified in the 3GPP Release 8 and 9 document series) does not satisfy the technical requirements the 3GPP consortium has adopted for its new LTE Advanced standard. The requirements were originally set forth by the ITU-R organization in its IMT Advanced specification. However, due to marketing pressures and the significant advancements that WiMAX, Evolved High Speed Packet Access and LTE bring to the original 3G technologies, ITU later decided that LTE together with the aforementioned technologies can be called 4G technologies.The LTE Advanced standard formally satisfies the ITU-R requirements to be considered IMT-Advanced.[4] To differentiate LTE Advanced and WiMAX-Advanced from current 4G technologies, ITU has defined them as “True 4G”

New 3G module MU509-65 for North America

Category : 其他, 技术相关

  • This year, Huawei lanuched a new module for 3G network in North America. Here is the details:
  • Because the 2G network shutdown in the North America ‎gradually. Huawei propose the more competitive solution “MU509-65” to follow the network development trade in North America. The MU509-65 with US region 3G Band support. But remove 2G band and available in LGA form factor. Meanwhile, MU509-65 also certificated with FCC/PTCRB/IC and AT&T TA.The industrial-grade M2M application of MU509-65 is widely. Such as POS, tracking , safety monitor and wearable medical device. And MU509-65 supports 3.6Mbps downlink data rate. Including enhanced features like FOTA,UDP/TCP/FTP/HTTP stack and Huawei enhanced AT commands.
  • All Huawei modules comply with the RoHS directive and Regional certification.
  • The MU509-65 is the HSDPA module based on Qualcomm chipset. Which is high-quality designed HSDPA module in small size and Huawei standard LGA form factor. The standard form factor design provided the easy way to migrate from MU509-c, MU709 or ME909 family.
  • Size
Height

30mm

Width

30mm

Depth

2.57mm

Weight

approx 5.5 g

  • Form Factor
145-pin LGA
  • Bands
MU509-65 LGA

WCDMA dual-band: 850/1900 MHz

  • Data Transfer Rate
HSDPA: DL 3.6 Mbps / UL: 384 kbps

WCDMA CS: DL 64 kbps / UL 64 kbps

WCDMA PS: DL 384 kbps / UL 384 kbps

  • Interface
Antenna interface

USB 2.0 Full Speed

Power supply

Analog Audio

UART

SIM Card (1.8V/3.0V)

Reset

Multiple GPIOs

  • Power Supply
3.2 V to 4.2 V (3.8 V recommended)
  • Temp Range
-40℃ to 85℃
  • Voice
PCM Voice

DTMF

  • Special Features
FOTA

Embedded UDP/TCP/FTP(s)/HTTP(s) stack

  • Operating System
Linux, Android,
  • Approvals
FCC

PTCRB

IC

AT&T Certification

RoHS & WEEE Compliant

H820 Switch MC7710 from DIP to QMI to increase 4G LTE Data Speed

Category : 产品文章, 伊林思产品FAQ, 技术相关

Steps for updating,
1) open H820 case, take out the MC7710 radio module
2) install the MC7710 radio module into the M300 debug board with USB cable.
3) get one PC (called PC1), install MC7710-DIP windows drivers. Download drivers and GUI tool at link http://www.e-lins.com/EN/download/driver/MC7710-DIP.zip

4) get another PC(called PC2), install MC7710-QMI windows drivers. Download drivers and GUI tool at link http://www.e-lins.com/EN/download/driver/QMI_B3449_Watcher.zip   and  http://www.e-lins.com/EN/download/driver/QMI_Driver_B3574.zip

5) Download DIP-QMI switching tool at link http://www.e-lins.com/EN/download/driver/BZ31018_DIP_QMI_ModeSwitch.zip
Unzip it and put in PC1.

6) Put the SIM card into the M300 debug board. Connect M300 debug board with MC7710 radio module to PC1, power on the M300 debug board, the PC1 will find the device and finishing installing the drivers.
Run the sierrawireless GUI tool, check if can get signal and network.
Run the DIP-QMI switching tool “BZ31018_DIP_QMI_ModeSwitch.exe”, try to switch from DIP to QMI mode. Please do not touch the M300 board until the switching is finished.

7) Connect the M300 board with MC7710 radio module to PC2, power on the M300 debug board, the PC2 will find the device and finishing installing the drivers.
Run the sierrawireless GUI tool, check if can get signal and network.

8) Put the MC7710 radio back to H685 router.  Install the connectors and cables well.

9) Download newest firmware at link http://www.e-lins.com/EN/download/firmware/ H820_8M64M_V2.3.52_20130801
And update the H820 with this firmware.

10) At H820 router, please at WAN configuration page, select “AUTO” at “Cell Modem”. Do not forget to click “Apply” button. Then the router will search the radio module, and working with QMI mode, which can reach much faster speed than before.

 

What is VPN

Category : 其他, 技术相关

A virtual private network (VPN) extends a private network across a public network or internet. It enables users to send and receive data across shared or public networks as if their computing devices were directly connected to the private network.

VPNs can provide functionality, security and/or network management benefits to the user. But they can also lead to new issues, and some VPN services, especially “free” ones, can actually violate their users’ privacy by logging their usage and making it available without their consent, or make money by selling the user’s bandwidth to other users.

Some VPNs allow employees to securely access a corporate intranet while located outside the office. Some can securely connect geographically separated offices of an organization, creating one cohesive network. Individual Internet users can use some VPNs to secure their wireless transactions, to circumvent geo-restrictions and censorship, and/or to connect to proxy servers for the purpose of protecting personal identity and location. But some Internet sites block access via known VPNs to prevent the circumvention of their geo-restrictions.

A VPN is created by establishing a virtual point-to-point connection through the use of dedicated connections, virtual tunneling protocols, or traffic encryption. A VPN available from the public Internet can provide some of the benefits of a wide area network (WAN). From a user perspective, the resources available within the private network can be accessed remotely.

Traditional

VPNs are characterized by a point-to-point topology, and they do not tend to support or connect broadcast domains, so services such as Microsoft NetBIOS may not be fully supported or work as they would on a local area network (LAN). Designers have developed VPN variants, such as Virtual Private LAN Service (VPLS), and layer-2 tunneling protocols, to overcome this

limitation.

Talking about Long Distance Wi-Fi

Category : 其他, 技术相关

Introduction
Since the development of the IEEE 802.11 radio standard (marketed under the Wi-Fi brand name), the technology has become markedly less expensive and achieved higher bit rates. Long range Wi-Fi especially in the 2.4 GHz band (as the shorter range higher bit rate 5.8 GHz bands become popular alternatives to wired LAN connections) have proliferated with specialist devices. While Wi-Fi hotspots are ubiquitous in urban areas, some rural areas use more powerful longer range transceivers as alternatives to cell (GSM, CDMA) or fixed wireless (Motorola Canopy and other 900 MHz) applications. The main drawbacks of 2.4 GHz vs. these lower-frequency options are:

poor signal penetration – 2.4 GHz connections are effectively limited to line of sight or soft obstacles
far less range – GSM or CDMA cell phones can connect reliably at > 16 km (9.9 mi) distances. The range of GSM, imposed by the parameters of Time division multiple access, is set at 35 km.
few service providers commercially support long distance Wi-Fi connections
Despite a lack of commercial service providers, applications for long range Wi-Fi have cropped up around the world. It has also been used in experimental trials in the developing world to link communities separated by difficult geography with few or no other connectivity options. Some benefits of using long range Wi-Fi for these applications include:

unlicensed spectrum – avoiding negotiations with incumbent telecom providers, governments or others
smaller, simpler, cheaper antennas – 2.4 GHz antennas are less than half the size of comparable strength 900 MHz antennas and require less lightning protection
availability of proven free software like OpenWrt, DD-WRT, Tomato that works even on old routers (WRT54G for instance) and makes modes like WDS, OLSR, etc., available to anyone. Including revenue sharing models for hotspots.
Nonprofit organizations operating widespread installations, such as forest services, also make extensive use of long-range Wi-Fi to augment or replace older communications technologies such as shortwave or microwave transceivers in licensed bands.

Applications
Business
Provide coverage to a large office or business complex or campus.
Establish point-to-point link between large skyscrapers or other office buildings.
Bring Internet to remote construction sites or research labs.
Simplify networking technologies by coalescing around a small number of Internet related widely used technologies, limiting or eliminating legacy technologies such as shortwave radio so these can be dedicated to uses where they actually are needed.
Bring Internet to a home if regular cable/DSL cannot be hooked up at the location.
Bring Internet to a vacation home or cottage on a remote mountain or on a lake.
Bring Internet to a yacht or large seafaring vessel.
Share a neighborhood Wi-Fi network.
Nonprofit and Government
Connect widespread physical guard posts, e.g. for foresters, that guard a physical area, without any new wiring
In tourist regions, fill in cell dead zones with Wi-Fi coverage, and ensure connectivity for local tourist trade operators
Reduce costs of dedicated network infrastructure and improve security by applying modern encryption and authentication.
Military
Connect critical opinion leaders, infrastructure such as schools and police stations, in a network local authorities can maintain
Build resilient infrastructure with cheaper equipment that an impoverished war-torn region can afford, i.e. using commercial grade, rather than military-class network technology, which may then be left with the developed-world military
Reduce costs and simplify/protect supply chains by using cheaper simpler equipment that draws less fuel and battery power; In general these are high priorities for commercial technologies like Wi-Fi especially as they are used in mobile devices.
Scientific research
See also: Wireless sensor network
A long range seismic sensor network was used during the Andean Seismic Project in Peru. A multi-hop span with a total length of 320 kilometres was crossed with some segments around 30 to 50 kilometers. The goal was to connect to outlying stations to UCLA in order to receive seismic data in real time.
Large-scale deployments
The Technology and Infrastructure for Emerging Regions (TIER) project at University of California at Berkeley in collaboration with Intel, uses a modified Wi-Fi setup to create long-distance point-to-point links for several of its projects in the developing world. This technique, dubbed Wi-Fi over Long Distance (WiLD), is used to connect the Aravind Eye Hospital with several outlying clinics in Tamil Nadu state, India. Distances range from five to over fifteen kilometres (3–10 miles) with stations placed in line of sight of each other. These links allow specialists at the hospital to communicate with nurses and patients at the clinics through video conferencing. If the patient needs further examination or care, a hospital appointment can then be scheduled. Another network in Ghana links the University of Ghana, Legon campus to its remote campuses at the Korle bu Medical School and the City campus; a further extension will feature links up to 80 km (50 mi) apart.

The Tegola project of the University of Edinburgh is developing new technologies to bring high-speed, affordable broadband to rural areas beyond the reach of fibre. A 5-link ring connects Knoydart, the N. shore of Loch Hourne, and a remote community at Kilbeg to backhaul from the Gaelic College on Skye. All links pass over tidal waters; they range in length from 2.5 km to 19 km.

Increasing range in other ways
Further information: 802.11 non-standard equipment and Radio propagation
Specialized Wi-Fi channels
For more details on this topic, see List of WLAN channels.
In most standard Wi-Fi routers, the three standards, a, b and g, are enough. But in long-range Wi-Fi, special technologies are used to get the most out of a Wi-Fi connection. The 802.11-2007 standard adds 10 MHz and 5 MHz OFDM modes to the 802.11a standard, and extend the time of cyclic prefix protection from 0.8 µs to 3.2 µs, quadrupling the multipath distortion protection. Some commonly available 802.11a/g chipsets support the OFDM ‘half-clocking’ and ‘quarter-clocking’ that is in the 2007 standard, and 4.9 GHz and 5.0 GHz products are available with 10 MHz and 5 MHz channel bandwidths. It is likely that some 802.11n D.20 chipsets will also support ‘half-clocking’ for use in 10 MHz channel bandwidths, and at double the range of the 802.11n standard.

802.11n and MIMO
Preliminary 802.11n working became available in many routers in 2008. This technology can use multiple antennas to target one or more sources to increase speed. This is known as MIMO, Multiple Input Multiple Output. In tests, the speed increase was said to only occur over short distances rather than the long range needed for most point to point setups. On the other hand, using dual antennas with orthogonal polarities along with a 2×2 MIMO chipset effectively enable two independent carrier signals to be sent and received along the same long distance path.

Power increase or receiver sensitivity boosting

A rooftop 1 watt Wi-Fi amp, feeding a simple vertical antenna on the left.
Another way of adding range uses a power amplifier. Commonly known as “range extender amplifiers” these small devices usually supply around ½ watt of power to the antenna. Such amplifiers may give more than five times the range to an existing network. Every 6 dB gain doubles range. The alternative techniques of selecting a more sensitive WLAN adapter and more directive antenna should also be considered.

Higher gain antennas and adapter placement
Specially shaped directional antennas can increase the range of a Wi-Fi transmission without a drastic increase in transmission power. High gain antenna may be of many designs, but all allow transmitting a narrow signal beam over greater distance than a non-directional antenna, often nulling out nearby interference sources. A popular low-cost home made approach increases WiFi ranges by just placing standard USB WLAN hardware at the focal point of modified parabolic cookware. Such “WokFi” techniques typically yield gains more than 10 dB over the bare system; enough for line of sight (LOS) ranges of several kilometers and improvements in marginal locations. Although often low power, cheap USB WLAN adapters suit site auditing and location of local signal “sweet spots”. As USB leads incur none of the losses normally associated with costly microwave coax and SMA fittings, just extending a USB adapter (or AP, etc.) up to a window, or away from shielding metal work and vegetation, may dramatically improve the link.

Protocol hacking
The standard IEEE 802.11 protocol implementations can be modified to make them more suitable for long distance, point-to-point usage, at the risk of breaking interoperability with other Wi-Fi devices and suffering interference from transmitters located near the antenna. These approaches are used by the TIER project.

In addition to power levels, it is also important to know how the 802.11 protocol acknowledges each received frame. If the acknowledgement is not received, the frame is re-transmitted. By default, the maximum distance between transmitter and receiver is 1.6 km (1 mi). On longer distances the delay will force retransmissions. On standard firmware for some professional equipment such as the Cisco Aironet 1200, this parameter can be tuned for optimal throughput. OpenWrt, DD-WRT and all derivatives of it also enable such tweaking. In general, open source software is vastly superior to commercial firmware for all purposes involving protocol hacking, as the philosophy is to expose all radio chipset capabilities and let the user modify them. This strategy has been especially effective with low end routers such as the WRT54G which had excellent hardware features the commercial firmware did not support. As of 2011, many vendors still supported only a subset of chipset features that open source firmware unlocked, and most vendors actively encourage the use of open source firmware for protocol hacking, in part to avoid the difficulty of trying to support commercial firmware users attempting this.

Packet fragmentation can also be used to improve throughput in noisy/congested conditions. Although packet fragmentation is often thought of as something bad, and does indeed add a large overhead, reducing throughput, it is sometimes necessary. For example, in a congested situation, ping times of 30 byte packets can be excellent, while ping times of 1450 byte packets can be very poor with high packet loss. Dividing the packet in half, by setting the fragmentation threshold to 750, can vastly improve the throughput. The fragmentation threshold should be a division of the MTU, typically 1500, so should be 750, 500, 375, etc. However, excessive fragmentation can make the problem worse, since the increased overhead will increase congestion.

Obstacles to long-range Wi-Fi
Methods that increase the range of a Wi-Fi connection may also make it fragile and volatile, due to various factors including:

Landscape interference
Obstacles are among the biggest problems when setting up a long-range Wi-Fi. Trees and forests attenuate the microwave signal, and hills make it difficult to establish line-of-sight propagation.

In a city, buildings will impact integrity, speed and connectivity. Steel frames and Sheet metal in walls or roofs may partially or fully reflect radio signals, causing signal loss or multipath problems. Concrete or plaster walls absorb microwave signals significantly, reducing the total signal.

Tidal fading
When point-to-point wireless connections cross tidal estuaries or archipelagos, multipath interference from reflections over tidal water can be considerably destructive. The Tegola project uses a slow frequency-hopping technique to mitigate tidal fading.

2.4 GHz interference
Main article: Electromagnetic interference at 2.4 GHz
Microwave ovens in residences dominate the 2.4 GHz band and will cause “meal time perturbations” of the noise floor. There are many other sources of interference that aggregate into a formidable obstacle to enabling long range use in occupied areas. Residential wireless phones, baby monitors, wireless cameras, remote car starters, and Bluetooth products are all capable of transmitting in the 2.4 GHz band.

Due to the intended nature of the 2.4 GHz band, there are many users of this band, with potentially dozens of devices per household. By its very nature, “long range” connotes an antenna system which can see many of these devices, which when added together produce a very high noise floor, whereby no single signal is usable, but nonetheless are still received. The aim of a long range system is to produce a system which over-powers these signals and/or uses directional antennas to prevent the receiver “seeing” these devices, thereby reducing the noise floor.

Dual SIM industrial router H750 Quick Start

Category : 产品文章, 伊林思产品FAQ, 技术相关

Before Installation and Configuration

  1. H750 router has different version. Study your router version before installation.
  2. For GSM/GPRS/EDGE/HSDPA/HSUPA/HSPA/HSPA+/4G LTE version, please get a SIM card with data business.
  3. For CDMA2000 EVDO/CDMA1x version, please get a UIM card with data business or inform us before order if the network uses non-ruim (nam-flashing).
  4. Make sure the sim card or uim card is with enough data business and balance.
  5. Make sure the signal is good enough where you test or install the router. Weak signal will make the router no work. If you find your signal strength is not good, please contact us for high gain antenna.

Notes: This quick start is for GSM/GPRS/EDGE/HSDPA/HSUPA/HSPA+/TD-SCDMA network only. For EVDO network or CDMA network, please refer to manual or contact us freely.

Step 1) Confirm the sim card if can work with other 2G/3G/4G router or modem. If the sim card can not work, the router will not work correctly.

Step 2) Connect the H750 Router LAN port to a PC via RJ45 cable. Make the PC automatically to get the IP, Submask, DNS.

The PC will get an IP of 192.168.8.xxx.

Step 3) At PC IE browser, please type: http://192.168.8.1

Username: admin      Password: admin

Step 4) Internet Settings – WAN – Cell Modem

Notes:

  • If you don’t replace any cellular module or not do the “Load Default to factory”, please skip this step and jump to Step 5.
  • Please be patient that the router will take some more time to dialup online for first configuration,

At “Cell Modem”, please select “AUTO_DETECT”, and click “Apply” button. The router will automatically detect the module modem.

Step 5) Set Cell SIM1

Setting location: H750 web “Internet Settings – WAN – APN configuration”

Click “Advance Parameter Groups” button, the H750 router will display the configuration page.

Fill in the related parameters. And DO NOT FORGET TO CLICK “Add/Edit” button.

Parameters Groups Name: you can fill in the name freely. But keep No Space between characters.

Dialup: fill in the related parameters. Get this parameter from the Sim Card Provider or Carrier;

APN: fill in the related parameters. Get this parameter from the Sim Card Provider or Carrier;

User: fill in the related parameters. Get this parameter from the Sim Card Provider or Carrier.
Notes: If your SIM card has no user name, please input out default value, otherwise the router may not dialup. Our default value for GSM/WCDMA/LTE is “wap”, and for CDMA/EVDO is “card”.

Password: fill in the related parameters. Get this parameter from the Sim Card Provider or Carrier.
Notes: If your SIM card has no user name, please input out default value, otherwise the router may not dialup. Our default value for GSM/WCDMA/LTE is “wap”, and for CDMA/EVDO is “card”.

 

Step 6) Set Cell SIM2. Follow Step 6 of setting Cell SIM1.

Step 7) Activate the “Cell SIM Switching Trigger” feature

Setting location: H750 web: Internet Settings – WAN — All Cell Option

There are 6 types of Cell Option Mode (Cell Switching Mode),

Mode Description
cell1 only With this mode, only sim1 works
cell2 only With this mode, only sim2 works
fail switch cell1 first With this mode, it works as below,
sim1 on – switch to sim2 on if sim1 failed, and keep working on sim2 – switch to sim1 on if sim2 failed, and keep working on sim1 –switch to sim2 on if sim1 failed, and keep working on sim2 – “cycling”
fail switch cell2 first With this mode, it works as below,
sim2 on – switch to sim1 on if sim2 failed, and keep working on sim1 – switch to sim2 on if sim1 failed, and keep working on sim2 –switch to sim1 on if sim2 failed, and keep working on sim1 – “cycling”
cell1 prefer With this mode, it works as below,
sim1 on – keep working on sim1 – if sim1 failed, switch to sim2 – keep working on sim2 for “Check Time (for Prefer mode)”, then try to check if sim1 is restored, if restored, switch to sim1 – “cycling”
cell2 prefer With this mode, it works as below,
sim2 on – keep working on sim2 – if sim1 failed, switch to sim1 – keep working on sim1 for “Check Time (for Prefer mode)”, then try to check if sim2 is restored, if restored, switch to sim2 – “cycling”
advance data traffic cell1 first With this mode, it works as below,
sim1 and sim2 have data limits. Sim1 on — once sim1 data count reaches the limitation, switch to sim2 — once sim2 data count reaches the limitation, sim1 and sim2 neither works until next day/week/month.With this mode, users need set the “Advance Cell Traffic” configuration
advance data traffic cell2 first With this mode, it works as below,
sim1 and sim2 have data limits. Sim2 on — once sim2 data count reaches the limitation, switch to sim1 — once sim1 data count reaches the limitation, sim1 and sim2 neither works until next day/week/month.With this mode, users need set the “Advance Cell Traffic” configuration. Refer to the detailed manuals from E-Lins.
cell on time traffic Sim1 and sim2 work according the time period schedule settings.

With this mode, users need set the “Advance Cell Traffic” configuration. Refer to the detailed manuals from E-Lins.

Notes: Sometimes it may happen the following,
1) Choosing ” fail switch cell1 first” or “cell1 prefer”, SIM2 is firstly online, this is not problem because sometimes the SIM1 has some problem to be online.

2) Choosing ” fail switch cell2 first” or “cell2 prefer”, SIM1 is firstly online, this is not problem because sometimes the SIM2 has some problem to be online.

Check Time (for Prefer mode): set the time for “cell1 prefer mode” or “cell2 prefer mode”

Description for Check Time (for Prefer mode):
For example1, Cell Option Mode is “cell1 prefer”, and Check Time (for Prefer mode) is “5” minutes. It works as below,
Router works with sim1 firstly — if sim1 failed, switch to sim2 — keep working on sim2 with 5 minutes — after 5 minutes, check if sim1 is ok, if ok, switch back to sim1.

For example2, Cell Option Mode is “cell2 prefer”, and Check Time (for Prefer mode) is “5” minutes. It works as below,
Router works with sim2 firstly — if sim2 failed, switch to sim1 — keep working on sim1 with 5 minutes — after 5 minutes, check if sim2 is ok, if ok, switch back to sim1.

Step 8) Click “View” button to double check if the settings are correct.

Step 9) Click “Apply” button or Re-power the router to reboot. Then H750 router will reboot and dialup online.

Once it’s online, the CELL LED will light on.
Notes: sometimes the router cannot dialup after the APN configuration, please power off the router, and re-power on it. Because some radio modules need reboot after the initial APN configuration.

Step 10) Once H750 router is online, it gets a WAN IP Address and Status Page will show similar info.

Step 11) Activate the “Cell ICMP Check” feature

Setting location: H750 web: Internet Settings – Cell ICMP Check

Notes:

1) For router working with best stability, we highly suggest activate and use this feature.

With this feature, the Router will automatically detect its working status and fix the problem.

2) Please disable the “Ping from WAN Filter” if use ICMP check feature, otherwise it cannot work.

 

  • Active: tick it to enable ICMP check feature
  • Check method: fill in checking domain name or IP. Click HOST/IP check button to verify before using it.
  • Check interval time (sec): set the interval time of every check
  • Check Count: set the checking count number
  • Reboot Count Before Sleep: H750 Router will sleep to stop checking after failed with set times.
  • Sleep Time (min): H750 Router sleep timing before resume check.

 

Example with above picture:

H750 Router check “www.google.com” and “112.134.8.8”, it will check 3 times. After the previous check, it will do next check after 60 seconds. Totally it will check 3 times. If 3 times all failed, H750 Router will reboot. If reboots 3 times continuously, H750 Router goes to sleep to stop checking. The sleep time is 5 minutes. After 5 minutes, H750 Router resumes to cycle the checking.