The document provides information on 4G routers, including: 1) 4G routers are industrial IoT routers that are compatible with 4G/3.5G/3G/2.5G networks and provide high-speed, stable wireless transmission. 2) They have interfaces that allow connection to serial, Ethernet, and WiFi devices for transparent data transmission and routing. 3) Potential applications of 4G routers include intelligent transportation, vehicle monitoring, security monitoring, industrial monitoring, financial services, power, environmental protection, water conservancy, and other industries.

1. A Comprehensive Guide to Acquire Information on 4G Router
4G router is an industrial IoT high-speed router, compatible with 4G/3.5G/3G/2.5G
network, flagship configuration, VPN link, industrial protection, wide temperature
design, easy to set up high-speed, stable wireless transmission network. The utility
model provides a wireless long-distance data transmission function for the user by
using a public LTE network.
4G router adopts high-performance industrial-grade 32-bit communication processor
and industrial-grade wireless module, with embedded real-time operating system as
software support platform, and provides one RS232 (or RS485/RS422), Ethernet LAN,
Ethernet WAN and One WIFI interface can connect serial devices, Ethernet devices
and WIFI devices at the same time to realize transparent data transmission and
routing functions.
Overview
4G router is an industrial IoT high-speed router, compatible with 4G/3.5G/3G/2.5G
network, flagship configuration, VPN link, industrial protection, wide temperature
design, easy to set up high-speed, stable wireless transmission network. The utility
model provides a wireless long-distance data transmission function for the user by
using a public LTE network.
4G router adopts high-performance industrial-grade 32-bit communication processor
and industrial-grade wireless module, with embedded real-time operating system as
software support platform, and provides one RS232 (or RS485/RS422), Ethernet LAN,
Ethernet WAN and One WIFI interface can connect serial devices, Ethernet devices
and WIFI devices at the same time to realize transparent data transmission and
routing functions.
At present, the industrial grade products have the patented technology of
maintaining the stability of the system, ensuring that the equipment is always online;
the whole machine adopts the metal casing, anti-interference and radiation
protection, and the industrial design is adopted on the hardware; the system has the
watchdog WDT protection, and the system monitoring is additionally loaded. Protect
SWP (System Watch Protect); the whole machine has passed the European CE
certification, passed the test of the inspector, passed the electric power 3000V
electric shock test, all the wireless modules have passed the CGD certification or FCC
certification or CE certification; after strict design, testing and After 10 years of
practical application, the product performance is stable and reliable.

2. This product has been widely used in finance, transportation, monitoring, water
conservancy, environmental protection, electricity, postal, weather, mobile Internet
of Things and telecommunications Internet of Things.
Hardware system
3.1 CPU: Industrial Grade ARM9 CPU, 200MPS, 16K Dcache, 16K Icache
3.2 FLASH: 8MB (expandable to 32MB)
3.3 SDRAM: 64MB (expandable to 256MB)
3.4 Interface:
Ethernet port:
A 10/100Base-T Ethernet port,
Shielded RJ-45 1,5 kV isolation transformer,
Ethernet IEEE 802-3, 802-2
Serial port:
RS232 serial port, (Support RS422/RS485 if needed)
Rate: 110bps~230400bps
Data bits: 7 or 8
Parity: None, Even, Odd
Stop bits: - 1 or 2
Flow control: None or RTS/CTS
Protection – 15 kV ESD and short circuit
Console: RS-232, 115200 bps, 8 data bits, 1 stop bit, no parity (8N1)
Indicator light:
LINK/ACT indicator with power, communication, online and Ethernet ports
Antenna interface:

3. Standard SMA female antenna interface, characteristic impedance 50 ohms
SIM/UIM card interface:
3V/1.8V standard push-pull user card interface
Power interface:
Standard 3-core locomotive power socket
Voice interface:
Standard headphone microphone interface (reserved, optional)
3.5 Power supply:
External power supply: DC 9V 1.5A
Wide voltage supply: DC 5-32V
3.6 Size:
Product dimensions: 155*96*23mm
Product packaging size: 298*226*60mm
3.7 Weight: 0.69kg
3.8 Other parameters:
Working environment temperature: -25~+65º C
Storage temperature: -40~+85º C
Relative humidity: 95% (no condensation)
Software function
4.1 Support VPN security tunneling functions, including PPTP+MPPE+MPPC and
IPSEC+L2TP
4.2 intelligent anti-drop line, support online detection, online maintenance,
automatic redial of dropped calls, ensure that the device is always online
4.3 Support high-speed HSPDA/HSUPA function

4. 4.4 Support IPTABLES firewall, packet filtering
4.5 Support multiple protocols: TCP/IP, UDP, ICMP, SMTP, HTTP, POP3, OICQ, TELNET,
FTP, etc.
4.6 Support for dynamic routing and static routing
4.7 Support DHCPD/DHCP function
4.8 Support NAT functions, such as SNAT, DNAT
4.9 Support for Dynamic DDNS
4.10 supports DMZ host
4.11 supports routing and forwarding, and also supports serial data transmission,
data center management
4.12 Support APN/VPDN Network
4.13 Convenient WEB configuration, support remote WEB management
4.14 support telnet management, easy to use console shell interactive environment
4.15 Support multiple terminals to share router ppp WAN export
4.16 supports multiple wireless dialing modes: automatic allocation, specifying IP,
specifying local peer IP
4.17 Support as a PPP server, multiple authentication methods, support for mutual
authentication
4.18 supports real-time clock sntp, online update time
4.19 Multiple wake-up methods (telephone, SMS, local data)
4.20 support online time period management
4.21 supports DTU function
4.22 Easy to use COM and SYSLOG system diagnostics, debugging functions
4.23 Support log viewing

5. 4.24 support serial port local software upgrade; support TFTP software remote
upgrade; support configuration export import, and web online update firmware
program
4.25 Support Operating System Windows 9x/ME/NT/2000/XP Linux Unix [1]
Folding industrial application design
High performance industrial grade wireless module
High performance industrial grade 32-bit communication processor
Supports low power modes, including sleep mode, timed and offline mode, and
timed on/off mode (only supported by special versions)
With metal casing, protection class IP30. The metal casing and system are safely
isolated, especially suitable for industrial control applications.
Wide power input (DC 5~35V)
Stable and reliable folding
WDT watchdog design to ensure system stability
Adopt a complete anti-drop mechanism to ensure that the data terminal is always
online
Ethernet interface built-in 1.5KV electromagnetic isolation protection
RS232 interface with built-in 15KV ESD protection
SIM/UIM card interface with built-in 15KV ESD protection
Power interface with built-in reverse phase protection and overvoltage protection
Antenna interface lightning protection (optional)
Folding standard easy to use
Provides standard RS232, Ethernet and WIFI interfaces for direct connection to serial
devices, Ethernet devices and WIFI devices.
Provides standard wired WAN port (supports standard PPPOE protocol) for direct

6. connection to ADSL equipment
Intelligent data terminal, can enter data transmission status after power-on
Provide powerful central management software for easy device management
(optional)
Easy to use, flexible, and a variety of work mode options
Convenient system configuration and maintenance interface (including local and
remote WEB mode or CLI mode)
Powerful
Support wireless public network and wired WAN dual link intelligent switching
backup function (optional)
Support VPN client (PPTP, L2TP, IPSEC and GRE) (Note: VPN version only)
Supports mirroring the data of the WIFI interface, and sends the mirrored data to the
LAN port (one port of LAN1, LAN2, LAN3, and LAN4) without affecting the normal
use of the port (optional)
WIFI interface supports WIFI AP, AP Client and WDS functions at the same time
(optional)
Support a variety of online and offline trigger mode, including SMS, phone ringing,
serial data, network data trigger online and offline mode
Support APN/VPDN
Support wireless video surveillance and dynamic image transmission
Support DHCP server and DHCP client, DDNS, firewall, NAT, DMZ host and other
functions
Supports complete network protocols such as TCP/IP, UDP, TELNET, FTP, and HTTP
Application field
4G router actually applied, wifi hotspot, bus wifi, etc., other has not been officially
applied. The following 3G router application case, the theory can be transferred to
4G router.

7. Intelligent Transportation: 1. HD electronic bayonet application 2. HD electronic
police application 3. Road wireless video surveillance
Vehicle monitoring: 1. Bus wireless video surveillance 2. Taxi video surveillance 3. Bus
video surveillance
Security monitoring: 1. Security wireless mobile detection system 2. Security wireless
video surveillance
Industrial monitoring: 1. Site wireless video surveillance 2. Industrial big data
transmission 3 Remote crane monitoring and management 4. Elevator remote
monitoring
Financial industry: 1. Wireless ATM self-service terminal 2. Coal mine tax monitoring
system 3. Wireless POS application
Power industry: 1. Substation 3G video surveillance 2. Transformer remote
monitoring management 3. Power line video surveillance
Environmental protection industry: 1.3G noise monitoring system 2. Wireless
monitoring system for pollution sources 3. Wireless environmental monitoring
system
Water conservancy industry: 1. Reservoir remote monitoring system 2. Water
environment comprehensive monitoring system
Other industries: 1. Municipal engineering 2. Petroleum monitoring 3. Agricultural
applications 4. Wireless WIFI applications