... . 3.Wall-mounted, easy to use 4.Sorted data records electrical fire alarm control panelFeatures:1. HBUS bus communication technology, with automatic protection ... . 3. Built-in large capacity data EEPROM, can store fault, alarm, on/off and event information by category. 4. Compact size ... ,XE3112H,XE3122,XE3123, XE3124,XE3125, XE3126 128 point graphic display electrical fire alarm control panel