Specifies the requirements for the design and performance of electrically operated smoke alarms containing detection and alarm facilities. It also allows, but does not require, for the inclusion within the smoke alarm facilities for inter-connection with other units or accessories. Where such facilities are included, the Standard specifies requirements for the connection interface. It is not intended that this interface be used for connection to remote monitoring stations. The Standard applies to smoke alarms for installation within residential accommodation where connection to remote monitoring is not required.