The Vossloh Signalling System is a range of route control interlocking systems. It is these specialist systems that many railway networks have chosen and France in particular are big fans as it is used on their public transport systems as well as many other rail networks across the world. As well as this pioneering signalling systems being used Vossloh safety products for all types of railway transport are also used around the world.

A range of interlocking systems are available including:

· Relay interlocking systems

The relay system consists of non controlled railway safety relays which use dedicated consoles and panels to operate.

· Computer controlled relay interlocking systems

These computerised systems have been installed for manya. The big advantage of these systems is the combination of computer control for the non-safety part and the use of safety relays for interlocking.

· Computerised interlocking systems – PIPC

If you want to centrally control your railway stations then computerised systems are the most suitable

· Computerised interlocking systems – ALISTER

The ALISTER computerised system is an electronic system that is more suited to small or medium sized railway systems. This system implements off the shelf hardware components and software modules that are used in many areas of industrial automation. For the maintenance teams, it incorporates diagnostic tools that can be consulted remotely and interfaces easily with the existing interlocking system environment. It has been specified and developed in conformity with CENELEC standards to ensure the SIL 4 safety level.

Various applications are also available for signalling safety products which optimise track and turnout safety. These include:

· Clamp lock

This particular clamp lock is a positive locking device for turnouts. It is operated by the use of a switch

· Movable point lock

The movable point lock locks the movable point of the swing nose. These locks can be fitted to any type of turnout and incorporate an electrical position detection unit.

· Paulvé point detector

This detector monitors the closing and opening of a turnout at the point, the heel or of the heel of the nose.

· Traffic detector

This electromechanical device, with temperature-compensated hydraulic time delay, detects the passage of a rain, with or without direction selection, enabling control of level crossings or work site announcement systems. All of these systems are developed using a range of electro hydraulic and electromechanical switch mechanisms, locked or trailable, suitable for national rail systems, urban transport systems (metros, LRT, tramways) and industrial networks.

Source by Perry Manku