TruVision IP PTZ Camera FW 5.1  Configuration Manual  39 
 
2.  Check Enable for Audio Input Exception.  
3.  Check Enable for Sudden Change of Sound Intensity and set the sensitivity and 
sound intensity levels. 
4.  Click Edit to set the arming schedule for the alarm input. See “To set up motion 
detection” on page 33 on page for more information. 
5.  Select the linkage method to be used. The options are: 
Normal Linkage: Notify Alarm Recipient, Send Email, Trigger Channel  
Other Linkage: Trigger Alarm Output: Select All, A->1, A->2 
6.  Click Save to save changes. 
Recording schedule 
You can define a recording schedule for the camera in the “Record Schedule” window. 
The recording is saved on to the SD card or NAS in the camera. The camera’s SD card 
provides a backup in case of network failure. 
The selected recording schedule applies to all alarm types. 
Pre-event time 
The pre- event time is set to start recording before the scheduled time or the event. For 
example, if an alarm triggers recording at 10:00, and the pre- event time is set as 5