The Window Annunciator Panel WAP provides up to 24 alarms with a window-size of 28x28 mm within an ultra-compact housing. For bigger applications, the WAP can be expanded. Size and colour of the windows can be freely configured and different variants are available for signal and supply voltages from 24 - 220 V AC/DC. In addition to the thousandfold proven annunciator functionality, various options are available, such as redundant power supply, integrated repeat relays or different communication interfaces for connection to superior or inferior systems.