Grandstream Networks GDS3705 User Manual

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GDS3705 User Manual
Version 1.0.1.16
Alarm IN/OUT
Alarm_In could use any 3rd party Sensors (like IR Motion Sensor).
Alarm_Out device could use 3rd party Siren, Strobe Light, or Electric Door Striker, etc.
The figure below shows illustration of the Circuit for Alarm_In and Alarm_Out.
Figure 15: Alarm_In/Out Circuit for GDS3705
Notes:
 The Alarm_In and Alarm_Out circuit for the GDS3705 should meet the following requirement:
Alarm Input
3V<Vin<15V, PINs (1.02KΩ)
Alarm Output
125VAC/0.5A, 30VDC/2A, Normal Open, PINs
 The Alarm_In circuit, if there is any voltage change between 3V and 15V, as specified in the table
above, the GDS3705 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.

Grandstream Networks GDS3705 Specifications

General

Brand	Grandstream Networks
Model	GDS3705
Category	Intercom System
Language	English