... alarm system 1.Support Two-way intercom (built-in speaker) 2,4 wired and 12 wireless defense zones 3.Wireless learning gsm alarm ... Arm, Remote Arm;12.SOS, fire, gas, door, hall, window, balcony, and perimeter places alarm;13.Real-time, delay, 24 ... and GB12663-2001 national standard.Alarm Panel front schematic diagram:Alarm Panel back schematic diagram:Alarm system LCD playerWired terminal block: ...