The SSD Series display has separate LEDs for Alarm | Supervisory | Trouble and Security events on the Cerberus Pro Modular system. Each LED will flash when unacknowledged events of that type are present on the system. The LED will change to steady, upon acknowledgment of the event. 

Also, there are two (2) LEDs that indicate the state of audible circuits on the system: one (1) LED to indicate that the circuits are active and one (1) LED to indicate the circuits have been silenced. 

The LCD display on the Model SSD-series display has four (4) rows – 40 characters for each row. When the Cerberus Pro Modular system is in its normal supervisory state with no events present, the display will annunciate the system ID information, the date and the time of day. 

When an event occurs on the system, the LCD display will show the event type and address, the time of the event, the custom message for that address, the usage of the device, and whether the event is `acknowledged’ or not.