Accsence VersaLog - Page 36

Accsense VersaLog Data Loggers User’s Manual Page 35
CH1
A2/E
A1
COM
CH7
CH6
COM
CH5
CH4
COM
CH3
CH2
COM
Power Supply
Strobe Light / Siren
+12 VDC
+
GND
GND
Alarm1 is used as switch to turn on/off siren based on alarm state.
If the alarm device needs more power to drive, A1 provides control signal to drive a coil relay as
follows:
+
-
Coil Relay
Power Supply
+12 VDC
GND
CH1
A2/E
A1
COM
CH7
CH6
COM
CH5
CH4
COM
CH3
CH2
COM
Strobe Light / Siren
+GND
Alarm1 is used as switch of the power supply.