DW/CW SERIES (WIDE DYNAMIC RANGE) ADJUSTMENTS
Refer to Figure 14 to adjust the
SW1 
R7
DEFAULT SWITCH POSITION
Figure 14. Adjusting the IS90-DW/CW Series Camclosure
SWITCH SETTINGS
Locate the DIP switch. Then set the switches for your installation.
Set to ON for NTSC. Set to OFF for PAL. The default is ON.
SW1-2: 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 25 for more information.)
Internal line sync disables line lock and synchronizes cameras internally.
Set to ON to use AC line lock. Set to OFF to use internal line sync. The default is ON.
SW1-3: Interlaced Scanning/Progressive Scanning
Interlaced scanning is the standard for analog recording installations. Each frame contains one odd and one even field, each processed separately.
Progressive scanning is better for digital recording installations. Each frame is processed as a whole, which results in less blurring and cleaner digital conversion. It also saves storage space on digital video recorders.
Set to ON to select interlaced scanning. Set to OFF to select progressive scanning. The default is ON.
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