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of 23 Ver 2.0 File No.: S1200020
A Professional GSM Alarm System designer and manufacturer!
GSM SMS Controller Alarm &GSM House Alarm System&
GSM Telemetry Units & GSM GPRS Logging System
Siren
Will start for 2 minutes when alarm. The siren rated voltage should be <12V DC.
GSM ANT
Connect the GSM Antenna.
Microphone
One sensitive Microphone built inside.
Speaker
For two way voice communication.
Tamper Switch
Zone Attribute is 24-Hour Zone, fixed to the IN20 Input, NC.
Interface 2 Description
+12V
+12VDC@1A power output for wired detectors. When AC power off, the power source will
automatically change to the Backup battery. Normally powered by the external DC Power input.
IN1~19
Digital input 1-19, connect to one wire of the wired Detector.
GND
Ground point, connect to another wire of the wired Detector or -12VDC.
R1+
Link-Output Relay, when the system alarm will close 4minutes. (Rated Voltage: 3A/240VAC), this
relay can be connected to light, soundly Sirends, or as a NO type digital input for DVR system.
R1-
Built in 240VAC@3A rated relay output, connect to the device negative electrode.
R2+
Separate Output Relay, Can switch on or off by SMS Commands. (Rated Voltage: 3A/240VAC),
this relay is very useful to switch on light when you can not come back in the evening. Then some
hours you can switch off it.
R2-
Built in 240VAC@3A rated relay output, connect to the device negative electrode.
4.2 Working Principle Drawing
The S120 works with wireless detectors or Wired detectors. It can switch on or off one appliance by SMS
command and automatically switch on other appliance, equipments for 4 minutes once alarm occurrence. Please
see below:
