
Chapter 3 Configuring and Managing the IP Camera
Audio/Video Windows
Table   | Video Window Options (continued)  | |
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Option | 
  | Description | 
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Validation Time  | If the Switch Mode option is set to Auto, specify the time that the camera  | |
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  | waits before switching Day/Night modes. The light level must continually  | 
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  | exceed the threshold for the duration of the validation time to trigger a  | 
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  | transition between the modes.  | 
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  | For example, if the Validation Time is set to 5 seconds and the current light  | 
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  | level exceeds the Night/Day Threshold for 5 seconds, the camera switches  | 
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  | mode. However, if the light level falls below the threshold during the  | 
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  | Validation Time, the timer resets and the camera remains in the same mode.  | 
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  | The default value for Validation Time is 2 seconds.  | 
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  | Note If a camera experiences lighting conditions that cause it to switch  | 
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  | continuously between Day and Night modes three times within 20  | 
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  | minutes (as the result of a low light scene with excessive IR  | 
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  | illumination or the thresholds being configured too close together),  | 
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  | the camera locks in to its last state for 20 minutes.  | 
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  | For example, if the first transition is from Day to Night, the camera  | 
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  | will switch from Day to Night to Day to Night and then remain in  | 
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  | Night mode for 20 minutes. If the first transition is from Night to  | 
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  | Day, the camera will switch from Night to Day to Night to Day and  | 
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  | then remain in Day mode for 20 minutes.  | 
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  | To unlock the 20 minute hold period, manually configure the camera  | 
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  | to Day mode, then Night mode, then Day mode, and then Auto mode.  | 
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Day to Night Threshold  | If the Switch Mode option is set to Auto, choose the value that specifies the  | |
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  | relative light threshold at which the IP camera switches from day to night  | 
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  | mode. A lower value designates that the IP camera switches from day to  | 
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  | night mode in brighter conditions. A higher value designated that the IP  | 
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  | camera switches modes in darker conditions. The default value is 24 for all  | 
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  | presets.  | 
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Night to Day Threshold  | If the Switch Mode option is set to Auto, choose the value that specifies the  | |
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  | relative light threshold at which the IP camera switches from night to day  | 
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  | mode. A lower value designates that the IP camera switches from night to  | 
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  | day mode in darker conditions. A higher value designated that the IP camera  | 
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  | switches modes in lighter conditions. The default value is 6 for Outdoor  | 
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  | preset and 16 for Normal, Indoor, Fluorescent and Metal Halide.  | 
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Start Time  | 
  | If the Switch Mode option is set to Night Schedule, enter the time (in 24 hour  | 
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  | format) when the camera enters Night mode.  | 
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End Time  | 
  | If the Switch Mode option is set to Night Schedule, enter the time (in 24 hour  | 
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  | format) when camera exits Night mode.  | 
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  | Cisco Video Surveillance System 2621 IP Dome User Guide | 
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