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Our Solutions · Level Crossing Safety

iSiS-LC

Flexible and efficient solutions for the protection of level crossings – certified up to SIL4.
Get in Touch Technical Data
State-of-the-Art Safety Technology

Innovative System for Intelligent Level Crossing Safety.

Our iSiS-LC systems are future-oriented level crossing safety systems, built from high-quality industry-standard components and complemented by field elements specially developed for railway applications – light signal heads, barrier drives and track switching equipment. The use of proven industrial and railway technology components ensures high reliability and long-term availability.

Developed to CENELEC EN 50126, EN 50128 and EN 50129 – approved up to SIL4.
Centrally and decentrally expandable – customer-specific adaptation without costly re-approval.
iSiS-LC – SIL4 Approved

In regular service on Austrian rail lines –
reliable, day in, day out.

Low Investment and Life-Cycle Costs

A main controller that keeps everything under control.

iSiS-LC is designed to reduce both the investment costs and, sustainably, the life-cycle costs of a level crossing system. The core element is the main controller – a safety-oriented programmable logic controller (PLC), configured with two or more channels depending on the required safety level, which handles all control and monitoring tasks: activating and monitoring light signals and barriers, activating the driver indication signals, monitoring the voltage supply, the manual control logic, and evaluating the axle counters.

For signalling, iSiS-LC uses low-power, dual-channel monitored LED signals. The electromechanical barrier drives with durable, low-maintenance motors are controlled via the main controller; redundantly operating sensors continuously monitor the position of the barriers.

iSiS-LC in use at a level crossing
Reliable Detection

Special algorithms for maximum safety.

To safely record train movements and subsequently activate and deactivate the system, iSiS-LC uses wheel sensors for axle counting in combination with specially implemented algorithms.

For connection to other systems – such as interlockings or traffic light signal systems – iSiS-LC supports both safety-oriented IP-based protocols and parallel interfaces. The connection can be made directly at the level crossing or remotely via a remote monitoring controller.

The system records all events, errors and faults, and provides extensive diagnostic functions via a built-in Panel PC with a user-friendly touchscreen.

Protected Against Failure and Overvoltage

Optional fully grid-autonomous.

All components are designed for an extended temperature range and can be installed in outdoor cabinets. A proven lightning protection concept reliably protects against overvoltages – both the SIL4 and SIL2 architectures safely handle all individual faults, consistently following the fail-safe principle of EN 50129.

The low energy consumption not only reduces running costs, but in special design variants also enables the grid-autonomous supply of a level crossing with solar panels and buffer batteries.

Grid-autonomous iSiS-LC system with solar power supply
Technical Data

The key facts at a glance.

Adaptable safety architecture – SIL4 or SIL2
Extended temperature range, suitable for outdoor cabinets
Control of multiple light signals
Control of multiple barrier drives
Multiple strike-in and strike-out points
Connection to different interlocking types
2in1: two level crossings controllable with one indoor system
Digital interfaces, mobile communication
Interested in iSiS-LC for your level crossing?
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The Advantages at a Glance

Why iSiS-LC?

Certified to the highest safety level SIL4
Flexible system concept thanks to high-quality industry standard components
Extensive diagnostics by the railway company and EBE service centre
Low investment and life-cycle costs
Frequently Asked Questions

Questions and answers about iSiS-LC.

What does SIL4 certification mean for iSiS-LC?

SIL4 (Safety Integrity Level 4) is the highest safety level under the European standard EN 50129. iSiS-LC is developed to the CENELEC standards EN 50126, EN 50128 and EN 50129 and approved up to SIL4 – the safety architecture is adaptable and also available in SIL2.

Yes. The low energy consumption of iSiS-LC enables, in special design variants, the grid-autonomous supply of a level crossing with solar panels and buffer batteries – particularly suitable for remote locations without an existing grid connection.

iSiS-LC is suitable for main lines, regional railways, industrial railways, as well as heritage and seasonal railways. The flexible system concept adapts to different operational requirements.

Yes. iSiS-LC supports both safety-oriented IP-based protocols and parallel interfaces, and can be connected either directly at the level crossing or remotely via a remote monitoring controller.

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