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Voice Evacuation System
6
circuit cap to the right).
5. Output dry contacts of 2-channel relay
Under normal conditions, the output dry contact 1 is an open circuit. When an EVAC or ALARM plays,
the output dry contact open circuit becomes short-circuited.
Under normal conditions, the output dry contact 2 is a short circuit. When the system fails, the dry
contact will be changed from short circuit to open circuit.
6. 24V output
Under normal conditions, there is no output. When the system is in alarm state, the two 24V output ports
change from no output to 24V output.
7. DC24V power input interface
8. AC 220V-230V power cable