Grandstream Networks GXV3500 User Manual page 28

Notes:
•
The Alarm_In and Alarm_Out circuit connection has to be similar to above circuit diagram and
meet following requirement:
Alarm Input
Alarm Output
•
The Alarm_In circuit (like above photo coupler), if there is any voltage change smaller than
15V, as specification listed), the GXV3500 Alarm_In port will detect it and trigger the action and
event.
•
Higher voltage and wrong polarity connection are prohibited because this will damage the
devices.
1, PIN, Voltage < 45V, Current (DC) < 50mA, Normal Open (Low)
1, PIN, Voltage < 80V, Current < 50mA, Normal Open (Low)
GXV3500 User Manual
Version 1.0.3.6
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