AVer SA series - Manual (Page 166)

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4.7 Sensor Setting
The I/O device must be installed to use this function.
1. Click the drop-down list and select the sensor ID number.
2. Enter sensor name.
3. Click External IO to configure external I/O device if it is available(see also
Chapter 4.7.1 )
4. The system automatically detects the sensor and input relates information. In the Content section, enter
sensor description.
5. In the test section, click Test to check the sensor status. Red is high and Green is low.
6. Click OK to exit and accept the setting and Cancel to exit without saving the setting.