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Track vacancy detection is the safety-critical process that determines whether a track section is occupied or clear for movement. It enables safe train separation, protects work sites and supports functions such as point locking and level crossing control.
Frauscher delivers globally proven systems designed to meet the highest safety standards, with seamless integration into relay and computer-based digital interlockings. This integration is possible through interfaces such as EULYNX, Frauscher Safe Ethernet FSE and customer-specific protocols.
Frauscher axle counters are engineered for reliable performance across diverse architectures and even the most challenging environmental conditions.
Fast and simple installation
Open interface for specific protocols
Lower lifecycle cost and low maintenance requirements
No track interventions needed
No need for insulated joints
Robust performance in harsh environments
Frauscher's proven solutions support a wide range of applications and are the global first choice for fail-safe track vacancy detection. Their flexible design simplifies complex layouts, reduces installation time and life-cycle maintenance needs, while delivering reliable performance even under challenging environmental conditions.
This technology supplies a fail-safe "occupied/clear" indication to relay and computer-based interlockings. Frauscher axle counters integrate easily into existing signalling architectures and support safe operating rules including controlled reset procedures.
Frauscher's track vacancy expertise covers a wide range of operational scenarios. In many cases, axle counters are the most effective choice, delivering fast, low-disruption installation and reliable performance even under challenging conditions. Due to their compatibility with legacy systems, axle counters are well suited to "spot fixes" as an upgrade or replacement to just sections of a line — no need to replace the entire system. They are also an excellent choice in areas with space constraints.
In the past, track circuits have been the cornerstone of railway signalling systems. Today, axle counters are increasingly used worldwide, especially where highly reliable and available train detection is required, and where advanced functionalities beyond standard train detection is needed. If required, Frauscher axle counters can be seamlessly integrated into existing signalling systems. On low-traffic rail routes or depots, axle counters provide dependable detection without relying on a continuous shunt path.
Depending on the application, integration can be achieved through conventional relays or open, standard-based interfaces, ensuring compatibility with customer-specific systems and standardised architectures such as EULYNX. Supervised communications support high availability, while remote diagnostics enable faster fault resolution and condition-based maintenance. Frauscher track vacancy detection solutions are designed to meet SIL 4.
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