This product standard for EMC requirements applies to road traffic signal systems. The range of products
included within the scope of this European Standard are road traffic signal systems and devices including
for example signal heads, signalling devices and traffic signs, controller and housing, supports,
interconnections, traffic detectors, monitoring equipment, electrical supply. Road traffic signal systems
operating in conjunction with other systems e.g. public lighting, railway systems should also comply with
the respective standard and should not reduce the safety of all the equipment. Central Office equipment is
excluded from this standard. Items with a radio-communication function should also refer to the European
ETSI standards.