Pelco IS90 DW/CW SERIES (WIDE DYNAMIC RANGE) ADJUSTMENTS

24 C3425M-E (1/09)

DW/CW SERIES (WIDE DYNAMIC RANGE) ADJUSTMENTS

Refer to Figure15 to adjust the IS90-DW or IS90-CW model.

Figure 15. Adjusting the IS90-DW/CW Series Camclosure

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

Set SW1-1 to ON for NTSC. Set it to OFF for PAL. The default is ON.

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

page27 for more information.)

Internal line sync disables line lock and synchronizes cameras internally.

Set SW1-2 to ON to use AC line lock. Set it to OFF to use internal line sync. The default is ON.

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 SW1-3 to ON to select interlaced scanning. Set it to OFF to select progressive scanning. The default

isON.

DEFAULT SWITCH POSITION

SW1