Surge protection on ports

Integrated surge protection: The foundation of exceptional reliability

Surge voltages caused by thunderstorms, static electricity or switching events can cause irreparable damage to sensitive electronics.
That is why the ports on the devices we develop come as standard with robust, integrated protection designed for real-world applications:

• Outdoor Fast Ethernet ports: resistance up to 1,000 A (8/20 µs waveform) for the most demanding conditions.

• Indoor Fast Ethernet and Gigabit ports: protection up to 30 A (8/20 µs waveform).

• Power inputs (10–60 VDC): protection in the range of 30–100 A (8/20 µs wave).

We verify the reliability of the protection by testing in accordance with strict international standards.
We primarily use the railway standard EN 50121-4 for immunity testing, which is more stringent than the base standard EN 61000-6-2.

Real-world data rather than theoretical tables

Thanks to effective integrated surge protection, our products achieve an extremely high level of reliability.
In accordance with the requirements of ISO 9001, we continuously evaluate the real mean time between failures (rMTBF) based on real operational data.

rMTBF = Total number of operating hours of all devices sold / Actual number of faults

This objective approach takes real-world operational factors into account and helps us to continuously improve quality in accordance with the ISO 9001 standard.

The mean time between failures (MTBF) can also be predicted analytically based on the reliability tables for individual electronic components (e.g. in accordance with MIL-HDBK-217 or IEC 61709). The calculation involves summing the failure rates of all components under standard conditions. However, the informative value of the MTBF determined in this way is limited, as it assumes a constant specific temperature and fails to account for external random influences, such as the risk of thunderstorms and power surges.

What are the benefits of integrated surge protection?

• Significant savings on servicecosts and technician call-outs.

• A 5-year warranty as proof of uncompromising quality.

• Maximum stability and security for your system, regardless of weather conditions.