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★DA-2300A can achieve real-time communication with ADEMCO 4110 series alarm unit through keyboard interface，can obtain alarm information (all alarm information and partial system information)，User can achieve all operation to ADEMCO 4110 series alarm unit through SMS（double encryption）；
★N.O, N.C, and 12V voltage signal to trigger three expand zones;
★SMS remote relay control, site monitoring, voice or SMS alarm through GSM network；
★Be compatible with ADEMCO 4+2 and ADEMCO Contact ID center monitoring station protocol；
★Easy programming and flexible setting, parameters can be set by SMS or computer-use software serial port；
★Telephone line testing ability; can shift freely between telephone line communication and GSM/CDMA communication.

★Voltage: 12 V (DC)
★Standby current：＜100mA
★Operating current ：＜300mA
★Pronunciation input: The longest time 20 seconds, exempt the power failure to protect
★GSM monitoring: The indicating lamp demonstrated whether in service network
★GSM frequency band ：E-GSM/GPRS 900/1800MHz
★Sending power ：2W/GSM900,1W/GSM1800
★Meet standards : EN 50131-1, EN 50136-2-1, 2-3, 2-4
★Security rating : 2 (Lower than the moderate risk)
★Environment rank: Generally roomⅡLevel (- 10 to 40℃)
★Electrical security ：EN 60950
★Electromagnetic compatibility : EN 301489-1, EN 301489-7, EN 55022, EN 50130-4
★Radio properties : ETSI EN 301419-1, EN 301511