
Chapter 3 Configuring and Managing the IP Camera
Audio/Video Windows
| Table  | Video Window Options (continued) | |
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| Option | 
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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 2611 IP Dome User Guide |