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20 C3426M-D (3/08)
DN/CH SERIES ADJUSTMENTS
Refer to Figure 10 to adjust the IS110-DN or IS110-CH model.
Figure 10. Adjusting the IS110-DN/CH Series Camclosure
SWITCH SETTINGS
Locate the DIP switch. Then set the switches for your installation.
SW4-1: Auto Gain Control
The auto gain control (AGC) adjusts the image automatically to compensate for changes in light levels.
Set SW4-1 to ON to enable AGC. Set it to OFF to disable AGC. The default setting is ON.
SW4-2: Backlight Compensation
The backlight compensation (BLC) feature compensates for backlit scenes by enhancing objects in the center
of the scene.
Set SW4-2 to ON to enable BLC. Use this setting if a bright backlight is present and the subject in the
center of the picture appears dark or as a silhouette.
Set it to OFF to disable backlight compensation. This is the default setting.
SW4-3: Line Sync
When multiple cameras are connected to the same switching device, vertical roll may occur on the monitor.
AC line lock eliminates vertical roll by locking the frame rate to the power supply frequency. Each camera
output is synchronized to the power supply frequency. (Refer to Vertical Phase Adjustment on page 22 for
more information.)
Internal line sync disables line lock and synchronizes cameras internally.
Set SW4-3 to OFF to use AC line lock. Set it to ON to use internal line sync. The default setting is OFF.