The EU311 range of micromodules is designed to be integrated directly inside devices to be controlled, thanks to its extremely compact size. The EU311 module has 1 supervised input and 1 loop-powered output, ideal for controlling pushbuttons, sirens or optical/acoustic beacons.
Variants include:

• EU311C: unsupervised input only, identifies itself on the loop as a call point.
• EU311CV: supervised input only, also identified as call point.
• EU311S: output only for alarm beacon control, identifies as siren on the loop.