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Pelco Manual C581M-B (1/04) 29
ACTIVITY DETECTION MASK SETUP
Activity detection continually monitors selected camera inputs for motion. When motion is
detected, the multiplexer increases the frequency with which that camera(s) is shown and
recorded. Activity detection is most effective when only a few cameras are showing activity.
As the number of cameras with activity increases, the slower the frequency at which they
can be shown and recorded. If all 16 cameras show activity, there will be virtually no
increase.
The activity detection mask selects that portion or portions of the camera’s field of view that
the multiplexer will monitor for motion. The entire grid is active on default.
To program an activity detection mask for a camera:
1. Press the MAIN MONITOR key.
2. Select the camera.
Addressing by Multiplexer (Switch 7 OFF)
a. On the number keypad, enter the address number of the multiplexer (1-16 if the
keyboard is connected to a multiplexer; 1-8 if the keyboard is connected to a
server), then press the UNIT key.
b. On the number keypad, enter the number of the camera, then press and hold the
CAM key until the Camera menu appears.
Addressing Consecutively (Switch 7 ON)
On the number keypad, enter the number of the camera, then press and hold the CAM
key until the Camera menu appears. Refer to Table C for camera numbers.
3. The currently selected menu item blinks. Use the pan/tilt keys to highlight
SET DETECTION MASK.
4. Press the OPEN key. The Activity Detection Mask appears. The currently selected
menu item or activity box blinks.
5. Use the pan/tilt keys to move between menu items and activity boxes on the screen.
6. Highlight the sensitivity menu item. Press the OPEN key to select the sensitivity.
The higher the sensitivity is, the less the amount of motion that will be needed to
detect activity.
Figure 8. Activity Detection Mask
ACTIVITY DETECTION MED SENSITIVITY
SET ALL CLEAR ALL EXIT TEST
ACTIVITY BOX SET
ACTIVITY BOX CLEAR
LOW SENSITIVITY
MED SENSITIVITY
HIGH SENSITIVITY