In today's era of accelerated digital transformation, enterprises have placed higher demands on the stability, security, and flexibility of network connections. Whether it is industrial monitoring in remote areas, real-time data transmission from moving vehicles, or global data synchronization for multinational corporations, a router capable of adapting to complex environments and providing reliable connections is essential.

PUSR's cellular network router, the USR-G806s-G, is precisely such a router designed for industrial-grade applications. It integrates core functions such as the Global Navigation Satellite System (GNSS), WAN failover, VPN encryption, enhanced OpenVPN design, EMC protection, and hardware watchdog, making it a trustworthy network hub for users across various industries.

1. What is a cellular network router?

A cellular network router is a routing device that enables data transmission through cellular mobile networks (such as 4G/5G). Unlike traditional wired routers that rely on fixed broadband, it directly accesses mobile networks through built-in cellular modules, providing internet connectivity for devices. This characteristic makes it particularly suitable for the following scenarios:

Areas without wired network coverage: such as remote mountains, oceans, deserts, etc.

Mobile scenarios: such as in-vehicle systems, drones, ships, etc.

Temporary network needs: such as exhibitions, emergency communications, field operations, etc.
As an industrial-grade cellular network router, the USR-G806s-G not only supports global mainstream frequency bands (such as LTE-FDD, LTE-TDD, WCDMA, GSM, etc.) but also features high reliability, strong stability, and rich expansion interfaces (such as serial ports, Ethernet ports, DI/DO, etc.). Its design(original intention) is to provide uninterrupted network support for industrial automation, intelligent transportation, environmental monitoring, and other fields, ensuring real-time data transmission and remote device management.

2. Global Navigation Satellite System (GNSS): Precise Positioning, Empowering Intelligent Projects

The cellular network router USR-G806s-G incorporates a multi-mode GNSS module that supports satellite systems such as GPS, Beidou, and GLONASS, providing positioning accuracy at the meter or even centimeter level. This function enables it to excel in projects requiring real-time positioning and trajectory tracking. The USR-G806s-G, also known as a "cellular internet router," connects networks globally.

Intelligent Transportation:

Internet of Vehicles: By utilizing GNSS positioning, it can upload vehicle location, speed, and driving status in real-time, providing precise data support for dispatch centers.

Shared bicycles/electric vehicles: It tracks vehicle locations, optimizing dispatch and anti-theft management.

Logistics Tracking:

Cold chain transportation: Combined with temperature sensors and GNSS positioning, it monitors cargo transportation trajectories and environmental parameters.

Hazardous materials transportation: It tracks vehicle locations in real-time, ensuring transportation safety.

Environmental Monitoring:

Field meteorological stations: It marks sampling point locations, enabling spatial analysis in conjunction with meteorological data.

Geological disaster monitoring: By analyzing positioning data, it tracks the movement of landslides, mudslides, and other disasters.
Application Details:

Signal Obstruction: GNSS signals are susceptible to interference from buildings, trees, or weather conditions. Ensure the device is installed in an open location.

Calibration Cycle: Regularly calibrate the positioning module to improve accuracy (especially for the Beidou system in dynamic scenarios).

Power Consumption Optimization: In battery-powered scenarios, adjust the positioning frequency to extend battery life.

3. WAN Failover: Dual-Link Backup, Ensuring Network Continuity

WAN failover is one of the core functions of the USR-G806s-G. When the primary link (such as wired broadband or the primary cellular network) fails, the cellular network router can automatically switch to a backup link (such as another cellular network or 4G/5G), ensuring uninterrupted network connectivity. This function is particularly crucial for environments requiring high availability.

Financial Industry:

Bank ATMs and securities trading systems need to be online 24/7. WAN failover can prevent business losses caused by network interruptions.

Medical Field:

In scenarios such as telemedicine and emergency vehicle networking, network stability is directly related to patient safety.

Industrial Control:

Automated production lines rely on network instructions, and any interruption could lead to production accidents.
Application Details:

Link Priority: Configure the primary and backup link order in advance (e.g., wired priority, cellular backup).

Switching Time: Test the failover switching time (usually less than 1 second) to ensure critical business operations are unaffected.

Traffic Costs: Cellular networks may incur additional traffic fees. Set reasonable traffic thresholds or choose directional traffic packages.

4. Cellular Network Router VPN Encryption: Secure Communication, Protecting Data Privacy

The USR-G806s-G supports multiple VPN protocols (such as IPSec, L2TP, PPTP, OpenVPN), enabling the establishment of encrypted tunnels to ensure data security during transmission. This is crucial for projects requiring remote access to internal networks or the transmission of sensitive data.

Enterprise Branch Interconnection:

Multinational corporations can connect offices worldwide via VPN, enabling data sharing and resource integration.

Smart Home:

Users can remotely control home devices (such as cameras, door locks), with VPN preventing hacker intrusions.

Government and Public Utilities:

Departments such as public security and transportation need to securely transmit surveillance data, with VPN meeting compliance requirements.
Target Users:

IT Administrators: Need to configure and manage VPN connections to ensure network security.

Remote Workers: Access the company intranet securely via VPN.

Security-Conscious Individual Users: Protect personal privacy data (such as online banking, health records).

5. Enhanced OpenVPN Design: Flexible Expansion, Meeting Customized Needs

The enhanced OpenVPN function of the USR-G806s-G supports custom configurations and script extensions, making it suitable for projects requiring a high degree of customization. For example, users can write scripts to implement dynamic IP allocation, traffic monitoring, or automatic restarts.

Internet of Things Platform:

Connect a large number of devices (such as sensors, smart meters) via OpenVPN for centralized management.

Scientific Research Experiments:

In field experiment stations, routers need to adapt to complex network environments. The flexibility of OpenVPN can meet customized needs.

Temporary Networks:

In scenarios such as exhibitions and concerts, quickly set up secure networks and automate management through scripts.
Target Users:

Developers: Need to write scripts to implement advanced functions (such as log analysis, fault warnings).

System Integrators: Provide customized solutions for clients.

Tech Enthusiasts: Explore the router's (ultimate performance).

6. EMC Protection and Hardware Watchdog: Stable Operation, Reducing Maintenance Costs

The USR-G806s-G features electromagnetic compatibility (EMC) protection to withstand interference from static electricity, lightning strikes, and power fluctuations. Its built-in hardware watchdog can automatically restart the system in case of a crash, ensuring continuous device operation.
Benefits for Enterprises:

Reduced Downtime:

The hardware watchdog prevents network interruptions caused by software failures, improving business continuity.

Extended Device Lifespan:

EMC protection reduces hardware damage from external interference, lowering replacement frequency.

Lower Maintenance Costs:

Automatic recovery reduces the need for manual intervention, saving IT support resources.

7. Cellular Network Connection: No Wiring Required, Rapid Deployment

Question: Can the cellular network router USR-G806s-G be connected to a cellular network?
Answer: The USR-G806s-G directly accesses mobile networks through its built-in cellular module. Users only need to insert a SIM card to use it. This characteristic makes it an ideal choice for temporary networks, moving vehicles, or remote areas.
Application Examples:

Emergency Communications: In natural disasters, quickly restore network connectivity to coordinate rescue efforts.

Agricultural Monitoring: Deploy sensors in farmland to transmit soil moisture, temperature, and other data via cellular networks.

Shipping: Provide maritime network coverage for ships, enabling remote navigation and cargo monitoring.

8. Cellular Network Router G806s-G Pass-Through: Flexible Networking, Optimizing Resources

The USR-G806s-G supports a "pass-through" mode, allowing the cellular modem function to be passed through to other network devices. For example, users can share the router's cellular connection with nearby devices without network access, enabling flexible networking.
Advantages:

Cost Savings: No need to equip each device with an independent cellular module.

Simplified Management: Centralize control over network access for all devices, avoiding the complexity of managing multiple SIM cards.

9. Global Mainstream Frequency Bands and Routing Protocols: Strong Compatibility, Seamless Connectivity

The cellular network router USR-G806s-G covers global mainstream frequency bands (such as LTE-FDD B1/B3/B5, LTE-TDD B38/B39/B40/B41, etc.) and supports multiple routing protocols, ensuring stable operation in different countries and regions.
Routing Protocol Functions:

Static Routing:

Manually configure paths, suitable for simple networks or fixed topologies.

Dynamic Routing (RIP/OSPF):

Automatically select the optimal path, adapting to complex network topologies (such as enterprise branch interconnection).

Policy Routing:

Allocate priorities based on data types (such as video, voice) or sources, optimizing bandwidth usage.
Protocol Selection Recommendations:

Small Networks: Static routing is sufficient.

Medium and Large Enterprises: OSPF dynamic routing is more efficient.

Multinational Networks: Combine BGP protocols to achieve cross-operator routing.

10.  Cellular Network Router USR-G806s-G: The Ideal Choice for Industrial-Grade Networks

PUSR's USR-G806s-G, with its advanced functions such as the Global Navigation Satellite System, WAN failover, VPN encryption, enhanced OpenVPN design, EMC protection, and hardware watchdog, has become the preferred cellular network router for industrial automation, intelligent transportation, environmental monitoring, and other fields. Whether for enterprise users requiring high reliability or tech enthusiasts pursuing flexibility, the USR-G806s-G delivers an exceptional network experience. Choosing the cellular network router USR-G806s-G means choosing a stable, secure, and efficient future.