The DS Series is similar in size and appearance to our DA Series annunciators, being offered in sizes ranging from 5 to 20 windows.
Unlike the DA Series, the DS Series is suitable for use as an inexpensive door status panel. This unit is for N.O. circuits only and the inputs are non-latching. The monitored door contact must be open when the door is closed. The contact must close to initiate an alarm when the door has been opened. A door violated alarm is indicated by a red LED lighting behind the respective zone label.