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If the ADC processes two or more video signals, its resources are used in the multiplexing mode. Then the ADC resources are uniformly allocated between the cameras, and part of its resources support the multiplexing process. So, in the multiplex mode the total frame rate of video signals, digitized by a single ADC, is much lower than in the Live video mode.

The maximum permissible total frame rate in the multiplexing mode depends on the frame resolution.

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1. Define the numbers of the idle video capture channels (taking into account BNC plug numbering).
2. Go to the Hardware tab in the System settings dialog box (1).
3. Select the In the object tree on the Hardware tab, select the Camera object, created before, with the same channel number as the BNC plug (idle channel) (2). The settings panel for the selected object is displayed on the right of the Hardware tab.Image Removed
4. Make sure that no signal is displayed in the video field (1).
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   The display of the video signal displayed in the video field indicates that the the Camera object is matched to matches another video channel.
5. The video channel number is specified in the Channel number drop-down list in the Basic settings tab (2). Match the Camera object with the channel number, which corresponds to the BNC plug number and the Camera object number, or scan for a Camera object, matched with the desired channel number.
6. Set the Disabled checkbox (3).
7. Click the Apply button (4).

The disabled Camera object is indicated with a cross mark.

Video Configuration of video subsystem with disabled video channels is now configuredcomplete.

Actual frame rate

It is recommended to define the actual frame rate of video signal digitization and then to set up the frame rate for video signals from video surveillance system cameras.

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1. Go to the Hardware tab in the System settings dialog box (1).
2. Select the relevant Video Capture Device object, created before, in the Hardware tab in the objects tree (2). The settings panel for the selected object is displayed in the right part of the Hardware tab.
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3. If it is necessary to increase the total frame rate up to the maximum allowed value, move the Rate slider to the Max position (3).
4. If it is necessary to reduce the total frame rate to the minimum allowed value, move the Rate slider to the Min position. The minimum total frame rate of video signals, digitized and processed by selected ADC, is 3 times lower than the maximum allowed one.
5. If it is necessary to return the default decimation settings, move the Rate slider to the middle position. The default total frame rate is 2 times lower than the maximum allowed one.
6. Click the Apply button (4).
7. Close the System settings dialog box and restart restart Axxon PSIM.

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1. Go to the Hardware tab in the System settings dialog box (1).
2. Select the Camera object, created before, corresponding to the camera, which frame rate is to be increased, in the objects tree in the Hardware tab (2). The settings panel for the selected object is displayed on the right of the Hardware tab.
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3. To increase the frame rate of a camera up to the Real time rate (25 FPS in PAL format and 30 FPS in NTSC format), reallocate other cameras serviced by the same ADC as with the camera above, to other ADCs.

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Initial data. The card has 4 ADCs. They are matched to 4 Video capture device objects in the objects tree. The video capture card may have up to 16 cameras connected to it. 8 cameras are actually connected to the video capture card. The objects matched to the remaining 8 cameras are disabled. Each of two ADCs, matched to the Video capture device 1 and Video capture device 2 objects, is configured to digitize the signals from 4 cameras. The ADCs matched to the Video capture device 3 and Video capture device 4 objects are not aren't configured to digitize signals from any cameras. An example of the objects tree is given in figure A:

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1. Select the Camera 1 object in the objects tree. The settings panel for the selected object is displayed.
2. Select Video capture device 3 in the Video capture device list.
3. Click the Apply button.
4. The Camera 1 object moves to the subdirectory of the Video capture device 3 object (see B).
5. Repeat 1-4 steps for the Camera 3 and Camera 4 objects.
6. Select the Video capture device 1 object in the objects tree.
7. Make sure that the Speed slider is in the max position.
   If the Speed slider is in the max position, then setup is completed.
   If the Speed slider is in another position, move it to the max position and do 8-10 steps.
8. Click the Apply button.
9. Close the System settings dialog box and restart restart Axxon PSIM.
10. The frame rate of the selected camera increases up to the Real time rate (for information on testing the frame rate change, see Actual frame rate).
11. If the number of connected cameras prevents the configuration of video signal digitization from one of the cameras with the Real time rate (for example, when 15 of 16 allowed cameras are connected), or if the frame rate on several cameras is to be increased simultaneously to the rate, lower than the Real time one, then the cameras, the frame rate of which is to be increased, are allocated between ADCs and they do not exceed the maximum allowable number. The frame rate is increased by as many times, as the number of cameras on ADC is reduced.

Video Allocation of video capture card’s resources are now allocatedis complete.

Example 2. Configuring video signal digitization from 2 cameras with increased frame rate

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1. Select the Camera 1 object in the objects tree. The settings panel for the selected object is displayed.
2. Select Video capture device 3 in the Video capture device list.
3. Click the Apply button.
4. The Camera 1 object moves to a subdirectory of the Video capture device 3 object (B).
5. Repeat 1-4 steps for the Camera 5 object.
6. The frame rate on Camera 1 and Camera 5 increases twofold (for information on testing the frame rate change see the Actual frame rate section).
7. Click the Apply button.

Video Allocation of video capture card’s resources are now allocatedis complete.

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So, the frame rate of Camera 1 is increased by 1.33 times and becomes equal one third of total frame rate of the considered ADC. The frame rate of each of the remaining cameras becomes 1.5 times less and makes up 1/6 of total frame rate of the considered ADC.Note1.

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Reallocation of resources of 1 ADC between the cameras is possible in two modes:

1. in In the processing mode, i.e. that is with video signal digitization and processing before it is displayed;prior to its display on the screen.
2. In in the recording mode, i.e. that is with video signal digitization and processing before it is recorded prior to its recording into the Server server archive. When cameras are switched to the recording mode, video signals are displayed with the rate, corresponding to the given ADC resources allocation.

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1. Go to the Hardware tab in the System settings dialog box (1).
2. Select the Camera object, created before, corresponding to the camera, ADC video processing queue of which is to be changed, in the Hardware tab in the objects tree (2). The settings panel for the selected object is displayed on the right of the Hardware tab.
3. Go to the Advanced settings tab on the settings panel of the Camera object (3).
   Image RemovedIf it is necessary
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4. Set the Processing slider in the Priority group to the position:
   
   1. 1/2 to queue the camera with 1/2 priority for ADC video processing
, move the Processing slider in the Priority group to the 1/2 position (4).
5. 1. .
      
   2. 1/3
If it is necessary
6. 1. to queue the camera with 1/3 priority for ADC video processing
, move the Processing slider in the Priority group to the 1/3 position.If
7. 2. Normal (default), if it is necessary to return the camera into the normal queue for ADC video processing
(set by default), move the Processing slider in the Priority group to the Normal position
8. 1. .
9. Click the Apply button (5).

Video Setting video processing priority is now setcomplete.

Setting video recording priority

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1. Go to the Hardware tab in the System settings dialog box (1).
2. Select the Camera object, created before, corresponding to the camera, ADC video processing queue of which is to be changed, in the objects tree of the Hardware tab (2). The settings panel for the selected object is displayed on the right of the Hardware tab.
3. Go to the Advanced settings tab on the settings panel of the Camera object (3).
   
4. If it is necessary to queue the camera with 1/2 priority for ADC video processing in the recording mode, move the Recording slider in the Priority group to the 1/2 position (4).
5. If it is necessary to queue the camera with 1/3 priority for ADC video processing in the recording mode, move the Recording slider in the Priority group to the 1/3 position.
6. If it is necessary to queue the camera with the Real time priority for ADC video processing in the recording mode, move the Recording slider in the Priority group to the Real time position.
7. If it is necessary to return the camera into the normal queue for ADC video processing in the recording mode (set by default), move the Recording slider in the Priority group to the Normal position.
8. Click the Apply button (5).

Video Setting video recording priority is now setcomplete.