The document discusses 4G industrial routers from E-lins Technology. It describes the routers' industrial-grade design including high-performance processors and modules to ensure stable, long-term operation. It also outlines the routers' powerful functions such as load balancing, global network support, wired/wireless backup, VPN support, and powerful WiFi. Finally, it notes the routers are designed to be stable, reliable, and easy to use through features like hardware WDT, traffic detection, environmental tolerances, and simple operation interfaces.

1. 4G Router Features of E-Lins Technology
With the development of new communication technologies and the continuous
improvement of network efficiency and function of wireless communication, 4G has
been widely used. 4G industrial-grade wireless routers are playing an increasingly
important role in the applications of various industries, and the price is getting
cheaper and cheaper. Currently, there are a lot of optional devices in the market, so
how to choose one that can guarantee long-term use, stability and reliability, and
affordable price is the problem that customers think about the most. The following is
a specific selection reference for the 4G industrial router of E-lins Technology.
I. Industrial-grade design
1. Adopt high-performance industrial-grade 32-bit processor and adopt QUALCOMM
chip, the world's top wireless solution, with high processing speed, low power
consumption, low heat output, strong compatibility and more stable, which can meet
the requirement of 365 days a year, 7*24 hours long and stable operation without
dropping the line.
2. Adopt high-performance industrial-grade communication module and high-quality
communication module of Huawei and other first-tier brands, with strong reception
ability, stable signal and faster transmission.
The operating system uses OpenWRT, a highly modular, highly automated embedded
Linux system, which makes the device more stable, has a large capacity of Flash and
memory, and can support the requirements of customized development. High quality
PCB circuit boards are manufactured with high quality materials and high standard.
Stable industrial components are used for product components. All the machines are
automated to realize patch production, ensuring the stability and reliability of the
products. The power supply adopts wide voltage design to support dc5v-40v, with
built-in anti-phase protection and over-voltage and over-current protection of the
power supply, which can withstand the impact of instantaneous high voltage and
current. Ethernet USES gigabit network port, built-in electromagnetic protection
Ethernet interface built-in 1.5kv electromagnetic isolation protection, gigabit
network port, and faster transmission speed. The shell with strong anti-interference
ability adopts thickened metal shell, shielding electromagnetic interference, and the
equipment protection grade IP34, which is suitable for use in harsh industrial
environment.

2. II. Powerful function
Multi-mode multi-card, load balancing
Expand network equipment and server bandwidth, increase throughput, enhance
network data processing capacity, and improve network flexibility and availability.
Support global network formats
Support 2G, 3G and 4G networks of the three major domestic operators, or support
Europe, Southeast Asia, Africa, Latin America and other countries.
Support wired wireless backup
WAN port and LAN port can be flexibly switched to support wired and wireless
backup of WAN port, with wired priority and wireless backup.
Serial transmission
Support simultaneous RS 232/485 serial port transmission.
Support APN/VPDN special network card, support a variety of VPN support
APN/VPDN special network card use, at the same time support PPTP, L2TP, IPsec,
OpenVPN, GRE and other VPN.
Powerful WIFI function
WIFI supports 802.11b/g/n, WIFI AP, AP Client, repeater, relay bridge, WDS and other
working modes, 802.11ac, or 5.8g (optional).
Support IP penetration function can achieve the IP address of the host IP obtained
for the router, which is equivalent to the host directly plugging in the card to dial up
the Internet to obtain the IP of the base station.
VLAN virtual LAN division through the division of VLAN, enhance the security of the
LAN, VLAN technology, can be different locations, different networks, different users
together, forming a virtual network environment. Support QOS, bandwidth speed
limit support different network port bandwidth speed limit, IP speed limit, total
bandwidth speed limit. Support DHCP, DDNS, firewalls, NAT and the function such as
DMZ host support ICMP, TCP, UDP, Telnet, FTP, HTTP, HTTPS and network protocol
support time to restart, SMS control, GPS/beidou positioning function (optional),
support M2M cloud platform management, mobile monitoring and WEB monitoring,
device data monitoring, traffic limit function, push resources, statistics, the remote
device management (remote restart, WiFi switch), remote parameter modification,
traffic restrictions, GPS tracking trajectory.
III. Stable and Reliable
1. Support hardware WDT watchdog, provide anti-dropping mechanism, and ensure

3. that the data terminal is always online.
2. Support ICMP detection and traffic detection, automatically restart the equipment
if network abnormality is found in time to ensure the stability and reliability of the
system in long-term use.
3. Industrial-grade design, metal shell, anti-interference, anti-radiation, 95% humidity,
no condensation, high temperature and low temperature resistance, minus 30
degrees to 75 degrees high temperature can work normally.
4. Our products have passed CCC certification, European CE certification and other
certifications
Simple operation, easy to use
1. Simple Internet access, push-stick user card interface, insert mobile phone
card/Internet of things card/special network card, and you can use the network port
and WIFI after power on.
2. Support software and hardware to restore factory Settings, software can clear
parameters, hardware RST one-key to restore factory Settings.
3. Product quick operation manual, WEB menu-type page, can quickly set up the
device for use.
4. Diagnostic tools: log download and view, remote log record, ping detection, route
tracking, easy to detect device information.