Security systems are changing at an ever-increasing pace and are making more use of standard Information Technology (IT) products running over a Local Area Network (LAN) or Wide Area Network (WAN)

The EN50136 family: Alarm systems – Alarm transmission systems and equipment - has been in force for some years.

This guide explains what the CE Mark is, why it is important and how installers and distributors can take steps to ensure that they are using genuine CE-marked equipment from manufacturers.

This document has been prepared to give guidance on the interpretation of some of the clauses in the standards that have been open to misinterpretation, in need of further clarification or which do not interface correctly with other standards in the EN50131 family

This guideline allows the industry to use DD CLC/TS50131-3, in conjunction 
with pr EN50131-1:2004.