Pelco IS150 User Manual download pdf (Page 16)

16 C3427M-C (10/07)

DN/CH SERIES ADJUSTMENTS

Refer to Figure 9 to adjust the IS150-DN or IS150-CH model.

Figure 9. Adjusting the IS150-DN/CH Series Camclosure

SWITCH SETTINGS

Locate the DIP switch. Then set the switches for your installation.

SW4-1: AGC (Auto Gain Control)

The AGC (automatic gain control) adjusts the image automatically to compensate for changes in light levels.

Set to ON to enable AGC. Set to OFF to disable AGC. The default is ON.

SW4-2: BLC (Backlight Compensation)

The BLC (backlight compensation) feature compensates for backlit scenes by enhancing objects in the center

of the scene.

Set 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 to OFF to disable backlight compensation. This is the default.

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 18 for

more information.)

Internal line sync disables line lock and synchronizes cameras internally.

Set to OFF to use AC line lock. Set to ON to use internal line sync. The default is OFF.

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Pelco IS150 User Manual Page 16