... function, nonpolarity design, can effectively avoid damage to BUS caused by construction. 2. LCD in Chinese. 3. Built-in ... capacity data EEPROM, can store fault, alarm, on/off and event information by category.4. Reserved RS232 Micro printer interface ... ,XE3112SL,XE3112SWL,XE3112H,XE3122,XE3123, XE3124,XE3125, XE3126Our system diagarm addressable electrical fire alarm system for mostly 512 points