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Pelco Manual C1961M-B (3/01) 5
Figure 1. Location and Function of Parts
ESC - Electronic Sensitivity Control
This function changes the sensitivity of the camera by varying the electronic
shutter speed according to the amount of incident light. The ESC range is 1:300.
To reset the ESC function switch, move the ON/OFF switch right or left. The ESC
is factory set to the ON position.
11 BLC - Backlight Compensation
The backlight compensation function allows fine picture correction to prevent the
subject from being extremely dark due to strong backlight. The BLC function
switch can be turned ON/OFF by moving the BLC switch right or left. The BLC is
factory set to the OFF position. Set the AGC switch to ON when using the BLC
function.
12 Eclipser Function
The eclipser function is used with an auto iris lens. When using a CCD imager
with an auto iris lens in an area with minimal lighting contrasts, the auto iris lens
closes, resulting in poor picture quality. The eclipser function distorts the signal to
the auto iris lens, causing the lens to open wider and create sufficient lighting
contrasts to prevent the silhouetting of figures. The eclipser function switch can
be turned ON/OFF by moving the ECLP switch right or left. The ECLP is factory
set to the OFF position. When the auto iris lens used is equipped with a response
selector (AVERAGE/PEAK), always set the selector to AVERAGE.
13 Power Input Terminal
24 VAC, 3-pin terminal strip, push-in type.
14 Eclipser Level Controls
a. Threshold - Sets the level for the brightest part of the picture. Anything
brighter than this adjustment will be eclipsed.
b. Eclipse - Sets the brightness of the eclipsed area in the signal that
controls the automatic iris lens.
c. Gray - Sets the brightness of the eclipsed area as viewed on a monitor.
10
24VAC
LEVEL
LENS
AGC
ESC
BLC
ECLP
OFF ON
VIDEO
THRE ECLPGRAY
UPDOWN
DC LL
GRND
VIDEO
5 6
13
14
4
7
8
TOP/FRONT VIEW
12
10
11
9
3
321
BACK VIEW
CAMERA MOUNT
ADAPTOR