Sentric unites Castell, Kirk, Salvo, STI & Zonegreen

Points Converter System

Designed to increase railway depot and workshop safety, the Zonegreen Points Converter allows the automation and remote operation of manual hand points, switches, and railroad crossings. 


The Zonegreen Converter system comprises two parts

Specialist depot equipment can be interlocked with DPPS to ensure that vehicle movements are only permitted when all equipment is in a safe condition. Trapped key or electronic solutions are implemented to monitor the position of third-party equipment and to inhibit its use when a vehicle movement has been initiated on DPPS. 

Points Converter System

A point machine conversion device which is attached to an existing manually operated switch without compromising the integrity of the existing mechanism. It does not require any civil works or changes in the operating procedures to be installed. Each converter can be used as a stand-alone machine or multiple units can be installed operating together with routing options. 

Zonegreen converter system installed on a railway

Operator Control System

Operation of the Point Converter device is possible either through the use of a key switch control panel, a radio remote, or alternatively through a computer operating system. 

A simple key switch can be mounted on a post in the local vicinity to allow the operation of the points from a position of safety. 

The intuitive handset allows the operator to remotely control the points system. It can be either hand- portable, cab-mounted or mounted within the depot. 

A centralised control system is also available via a Microsoft Windows PC interface that offers route planning and visualisation, as well as the remote control of the points converter device. The remote handset and the centralised PC interface can both be used in route selection mode, whereby one command can operate several points and crossings simultaneously. Both the handset radio signals and the hard-wired PC control system employ half-duplex communication, allowing feedback to be provided to the operating device, confirming to the user once the point has been set correctly, or the reason behind why it has not been able to set.

Key Benefits

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Enhanced safety by reducing the potential for slips, trips, and falls

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Elimination of unnecessary exposure to live third rail

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Removal of excessive manual handling requirements

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Expandable. Routes can be pre-set, re-configured and upgraded at any time

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Traceability. Includes an event logging system that allows the depot manager to keep a record of the points operation

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Independently EMC-assessed to meet EMC standard EN50121-4:2006

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Low cost

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Simple to use


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