Vitek vtc-c680 사용자 가이드
B
BL
LA
AC
CK
K
9
EXTERNAL CONTROLS
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 a 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 color to B/W or reverse under specific scene
illumination values, but sometimes iterations occur when switching from/to (Night <-->
Day) under specific external IR light source. VITEK IR mode can give a little margin of
the IR iteration at specific condition by increasing the threshold value (Night to Day)
adjustment.
illumination. This mode was derived from a 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 color to B/W or reverse under specific scene
illumination values, but sometimes iterations occur when switching from/to (Night <-->
Day) under specific external IR light source. VITEK IR mode can give a little margin of
the IR iteration at specific condition by increasing the threshold value (Night to Day)
adjustment.
When 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 iteration under stronger external IR light.
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 iteration under stronger external IR light.
SW 8. N/A (Reserved for future usage)
POWER SUPPLY CONNECTIONS
VTC-C680 / C750 Cameras are dual voltage and can work with either 12VDC or
24VAC power. A polarity-matched connection for 12VDC supply is NOT required.
Primary and secondary grounds are completely isolated to reduce the possibility of
ground-loop problems. An operating voltage range of 9.5V-30V for DC and 12-28.8V
for AC provides extra installation flexibility.
24VAC power. A polarity-matched connection for 12VDC supply is NOT required.
Primary and secondary grounds are completely isolated to reduce the possibility of
ground-loop problems. An operating voltage range of 9.5V-30V for DC and 12-28.8V
for AC provides extra installation flexibility.
Installation Notes:
Before applying voltage, first connect the power supply to the camera, then connect the
power supply to an AC source. Connecting a live power supply directly to the camera
could trigger an improper reset from power jitter and cause damage from surge voltage
when there is no load.
power supply to an AC source. Connecting a live power supply directly to the camera
could trigger an improper reset from power jitter and cause damage from surge voltage
when there is no load.
CLASS 2
AC 24V
DC 12V
+~
-
~