Modular Control System | Airfield Control Systems

Modular Control System (MCS)
Proven Reliability. Trusted Performance.

The Modular Control System (MCS) is a robust, hardwired push-button solution designed for the precise management of airfield lighting systems. With a long-standing history of operational success, MCS has reliably supported both RAF and Naval airfields across the UK and overseas. Its dependable performance has also been proven at several civilian airports, although many of these sites have now transitioned to our advanced SmartControl system.

Throughout its service life, MCS has evolved through several iterations, adapting to changing operational demands and technological standards. atg airports, in close partnership with the Defence Infrastructure Organisation (DIO), has played a key role in this progression—coordinating with individual air stations to ensure that each installation meets the latest MkIV standard.

The MkIV upgrade introduced significant improvements to the system’s efficiency and control capabilities. Notably, one of the most impactful changes is the direct integration of constant current regulators (CCRs) for powering taxiway lighting circuits. This replaced the older method involving D22 contactor units and Transformer Mains Supply Electronics (TMSE), streamlining system operation and reducing maintenance complexity.

As a result, the MCS remains a dependable solution for military airfields seeking simplicity, consistency, and reliability in airfield ground lighting control. With decades of proven performance and ongoing support from atg airports, the Modular Control System continues to serve as a trusted platform where resilience is paramount.

Whether maintaining legacy systems or transitioning to modern control solutions, atg airports delivers expert guidance and dependable service every step of the way.

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Modular Control System (MCS) Associated products

D20 Control Contactor Unit

Flexible PAPI lighting systems used by airports around the world. Our range of PAPI lights is suitable for airports of any size – our team.

Cable Termination Panel

A range of runway approach lights used by airports around the world. We offer a flexible range of systems which meet all relevant standards.

Product Information

There has been an increase in the number of ‘active mimics’ being connected to the system which allows for the operator to clearly see the airfield layout and the lighting pattern selected. From an operator’s perspective this is easier to understand than that of the standard lighting control push button desk.

Control of traffic lights that are on runway / taxiway crossings, along with RHAG markers is also achieved through the same control equipment. True back indication for these critical lighting systems are achieved by the use of a D20, D22, D23 and the TL48 units.

Net Barriers are located at the end of some runways and are used in an emergency for smaller aircraft. The raising and lower of this equipment is once again achieved through various interlocks within the MCS to ensure that an incorrect signal cannot raise the barriers inadvertently.

Communicating around the airfield ring to each of the substations, is generally achieved by the use of telemetry signals being transmitted along a pair of wires. But again, new technologies have crept in and where there is fibre between these substations this can now be utilised as the transmission media.

The control modules and mounting frames that are used within the MCS system are readily available or can be manufactured to order by atg airports engineering team. Information regarding servicing, and urgent response callout, along with control system support and failures is available upon request. For further details on this and any other aspect of the MCS and associated equipment’s contact should be made through the form below.

In the event of urgent response being required to resolve technical matters on the system, contact should be made directly with the head office by phone, and not through this page.

Airfield lighting enquiry

Fill out the form below and a member of the atg team will respond within 48 hours.

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