Abstract: The present disclosure relates to a method for handling alarms in a surveillance system. The method comprises the steps of: in an alarm control unit receiving an input from a surveillance detector device via a first interface; communicating with an alarm input signal control device via a second interface; controlling a state of the alarm signal (L) having at least a first (L=GREEN) or a second (L=RED) state; setting the alarm signal to the second state; presenting an alarm to an operator thereof if the input signal is in the first state whereby the operator handles the alarm signal and a resulting clear alarm signal (STATUS=CLEAR) is sent back to the alarm evaluation and control unit to reset the alarm signal to the first state (L=GREEN).