Signalling for the Future
The Unipart Dorman iLS
31 August 2012 13:50:21



Unipart Dorman, the leading LED signal innovator, has received Network Rail acceptance on its revolutionary integrated Lightweight Signal (iLS).  The signal has been developed in close connection with the industry by the design & engineering team at Unipart Dorman, and represents a significant technological advance in the future of railway signalling.

With the integration of our LED and Optical technology into a new signal head and structure, the iLS is now a complete system from the ground up. 

Key to the innovation of iLS are:

• Robust, lightweight post
• Standard mounting arrangement
• ‘Plug & Play’ coupling
• Proven Dorman LEDs and optics
• Multiple signal head configurations
• Integrated Equipment Enclosure or Trunnion base
• Factory tested prior to delivery
• Anti-phantom technology
• Post tilts from base

The integrated signal structure, which has the flexibility of either a ‘trunnion’ or our new Signalling Equipment Enclosure, lowers the whole-life costs through a combination of reducing the time and cost of installation and being virtually maintenance-free, creating significant savings for project and maintenance teams. 

Specialist Knowledge

We have been working with LEDs and optics for decades and our products are market leaders in all the sectors in which we operate.  With over 90,000 signal units currently installed on the UK infrastructure, you know that we have the skills to deliver exceptional new designs.

How did we do it?

Our extensive knowledge of railway signalling technology coupled with our understanding of the industry needs has enabled us to create a single structure in which we can house multiple signal configurations:

• Searchlight Colour Light Signal
• Subsidiary Signals
• Junction Route Indicators
• Miniature Route Indicators

This greatly reduces or eliminates the need for gantries, platforms and removes the risks of working at height.

Using our combination of exact signal colours, electronic control of the light output & proving, and precise optical design, the Unipart Dorman signals are a ‘tried & trusted’ signal with many years of successful operation.

Our approach to redesigning the structure has created a very stable signal that under wind loading exceeds Network Rail’s requirements, and is also very lightweight and easily lifted and handled.

Both base unit options (trunnion or equipment enclosure) are both provided with plug coupling which simplifies the entire installation and means that each project can be designed to local needs.  For large, complex projects with REBs and Location Cases a trunnion base can be used.  For smaller, less complex projects the Equipment Enclosure can contain all the control equipment needed.


For more information on the iLS & to see the plug & play animation visit http://www.unipartdorman.co.uk/iLS/



For more information, please contact us using our Online Enquiry Form here
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Nicola Holt

Infrastructure Marketing Manager
I am the Infrastructure Marketing Manager and have worked at Unipart Rail for almost 10 years, most of my time is spent supporting Unipart Dorman in both the Rail & Traffic sectors, we cover a wide area so I often attend overseas exhibitions. I love cooking & enjoying a nice glass of wine or two with friends.
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