The DSC LCD-4501 connects up to 16 keypads. It has a large, backlit, 2-line, 32-character display, and uses a plain-language display of zone status, system status, trouble conditions, event buffer, system instructions, date and time. It includes a ready, armed and trouble LEDs, and has 5 programmable function keys. It features 4 keypad-activated alarms: Panic, Auxiliary, Fire and Duress.