Operation Manual
User Manual of Digital Video Recorder 
126 
8.5  Detecting VCA Alarm 
Purpose: 
The DS-7200/7300/8100/9000 series DVR can receive  the VCA alarm sent by analog camera, and the VCA 
detection must be enabled and configured on the camera settings interface first.   
Perform the steps below to set the VCA configuration. The device can provide VCA capability of enabling 
linkage actions when detecting exceptional event, such as people, vehicles and objects cross a virtual line or 
intrude a pre-defined region. 
  The VCA settings and VCA alarm is supported by 1 analog camera for DS-7200/7300/8100HGHI models 
and 2 analog camers for DS-7200/7300/8100/9000HQHI models. 
  DS-7100-SH does not support VCA.   
Steps: 
1.  Enter VCA Alarm interface of Camera Management and select a camera you want to detect VCA alarm. 
Menu> Camera> VCA 
The selected camera must support the VCA function. 
Figure 8. 14 VCA Alarm Setting Interface 
2.  Select the analog camera to configure the VCA. 
3.  Select the detection type to Line Crossing Detection or Intrusion Detection.  
Line Crossing Detection: This function can be used for detecting people, vehicles and objects cross a set 
virtual line. The line crossing direction can be set as bidirectional, from left to right or from right to left. 
And  you  can  set  the  duration  for  the  alarm  response  actions,  such  as  full  screen  monitoring,  audible 
warning, etc. 
Intrusion  Detection:  This  function  can  be  used  for  detecting  whether  there  are  people,  vehicles and 
objects intruding into the pre-defined region longer than the set duration. And you can set the duration for 
the alarm response actions, such as full screen monitoring, audible warning. 
4.  Check the Enable checkbox to enable the selected VCA detection. 
5.  Click the   to configure the trigger channel, arming schedule and linkage actions. 










