The Backbone of Industry

Reliable Hardware Design in 4G Routers

In the rapidly evolving landscape of industrial technology, 4G routers play a pivotal role in ensuring seamless connectivity and robust data transmission. The reliability of these devices hinges on meticulous hardware design, which incorporates advanced components and protective measures. This article delves into the core components, reliability features, environmental resilience, and certifications that define the backbone of industry-grade 4G routers, with a focus on the WIS901 4G Industrial Router Reliable Hardware Design in 4G Routers.

1. Core Components and Design

Chip Scheme

At the heart of the reliable WIS901 4G Industrial Router is the MTK industrial-grade wireless router chip, MT7628. This main chip is renowned for its efficiency and capability to handle the rigorous demands of industrial applications. Its integration ensures that the WIS901 can manage high data throughput and maintain stable connections, which are critical for industrial operations.

Hardware Circuit Protection

To safeguard against electrical disturbances, the WIS901 incorporates robust hardware circuit protection. The router features surge protection and power reverse connection protection circuits at the power input. Adhering to the IEC 61000-4-5 LEVEL 3 standard, the WIS901 can withstand voltage surges up to 4kV on the power line and up to 2kV on the signal line, protecting against lightning strikes and power line interference.

Additionally, electrostatic protection circuits are embedded in the Ethernet port, RS232/RS485 interface, and SIM card interface of the WIS901. Compliance with the IEC 61000-4-2 standard ensures that this router can endure electrostatic discharges of up to 15kV (air discharge) and 8kV (contact discharge), preventing malfunctions due to ESD events.

2. Reliability Features

Watchdog Protection

Reliability in the WIS901 4G Industrial Router is further enhanced through watchdog protection mechanisms. An external watchdog circuit, SP706, is employed alongside a software-based watchdog process. This dual approach continuously monitors key processes, ensuring that the WIS901 remains operational even in the face of potential system failures.

Timing Restart

To maintain optimal performance, the WIS901 is equipped with the capability for automatic and timed restarts, configurable through the management interface. This feature helps in resetting the system at regular intervals, minimizing downtime and ensuring consistent connectivity.

Antenna Design

Signal strength is crucial for uninterrupted data transmission. The WIS901 uses a 5dbi external waterproof antenna, significantly boosting signal reception. Additionally, the router monitors the 4G network status in real time and can automatically restart the 4G module if a disconnection occurs, thereby maintaining a stable network connection.

3. Environmental Resilience

Durability and Ruggedness

Industrial environments demand devices that can withstand harsh conditions. The WIS901 4G Industrial Router is housed in an aluminum alloy shell and utilizes industrial-grade components with PCB triple protection, ensuring durability and ruggedness.

Environmental Adaptability

Designed to operate in a wide range of conditions, the WIS901 functions effectively at temperatures from -20 to 85℃ and in humidity levels below 80%. It also features industrial-grade electromagnetic interference protection, complying with several ETSI standards, including ETSI EN 301 489-1 and ETSI EN 301 908-1, ensuring resilience against environmental and electromagnetic challenges.

4. Reliability Metrics

A critical measure of reliability is the Mean Time Between Failures (MTBF), which for the WIS901 4G Industrial Router is an impressive 5 years. This metric underscores the long-term dependability of the device in demanding industrial settings.

5. Certifications and Standards

Certifications

The WIS901 is CE certified, attesting to its compliance with European health, safety, and environmental protection standards. This certification is crucial for ensuring product quality and safety in industrial applications.

Carrier Compatibility

Designed for versatility, the WIS901 4G Industrial Router is compatible with major European telecommunications operators, ensuring broad connectivity options and seamless integration into existing networks.

Conclusion

Summary of Key Points

The reliability of the WIS901 4G Industrial Router is anchored in its robust hardware design, which includes advanced chipsets, comprehensive circuit protection, and features like watchdog protection and timing restarts. Its environmental resilience and adherence to rigorous standards further enhance its dependability.

Future Outlook

As technology continues to advance, the future of industrial routers like the WIS901 promises even greater enhancements in connectivity, speed, and security. Innovations such as 5G integration and IoT compatibility are poised to redefine the capabilities of these essential devices, ensuring they remain at the forefront of industrial connectivity solutions.