3
SW 3. Flickerless ON/OFF (Default: ON)
Flickerless mode is useful in areas where AC mains is 50Hz and TV system is NTSC such like Japan or AC is 60Hz
and TV system is PAL to reduce the flicker under the florescent light. Where FL is set to ON, the low light sensitivity is
down about 30%.
SW 4. AGC Turbo ON/ OFF (Default: OFF)
AGC is Automatic Gain Control
SW 5. Sharpness ON/OFF (Default: ON)
SW 6. Day-Night (ICR) ON/OFF (Default: ON)
DAY-NIGHT ON/OFF SW enables or disables the day-night mode. If set to ON, day-night mode is enabled and camera
determines to enter / exit NIGHT mode from / to DAY mode automatically according to the scene illumination. When
the scene illumination is getting darker than a half video level, camera changes its mode to NIGHT and removes its
optical filter to get a higher video level and switches to B/W mode.
In NIGHT mode, camera provides the real time B/W video and can accept the IR light. When the illumination is getting
brighter, camera returns to DAY mode and returns its optical filter and switches to Colour mode.
If set to OFF, camera operates just like a normal camera and does not perform NIGHT mode.
SW 7 IR mode ON/OFF (Default: OFF)
Used to reduce a possibility from Day to Night or reverse under a certain scene illumination. This mode was derived
from simple IR Cut filter mechanism which is switched from day to night or night to day based on scene illumination.
A typical IR cut filter type D&N camera could be switched from Colour to BW or reverse under specific scene illumi-
nation values, but sometimes iterations (switch frequency) occur when switching from/to (Night <--> Day) under
specific external IR light source. IR mode can give a little margin of the IR iteration at specific condition by increasing
the threshold value (Night to Day) adjustment.
IR mode is enabled, it reduces iteration of the filter switch (repeated IN-and-OUT) during varying lighting conditions.
In IR mode, the Night to Day threshold will be around 6.0Lux and around 4.0Lux when off. The Lux is affected by
scene illumination, but has a limit to reduce IR switch frequency under stronger external IR light.
SW 8. N/A (Reserved for future usage)
Summary of Contents for VKC-1370
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