X935-24-00 Rev 108 V894CSH/V894WSH High-Security Cameras
Installation
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7
Camera/Lens Adjustments
After all cabling is complete, the camera and lens can be adjusted.
DIP Switch Settings
Refer to Figures 2 and 3 when making DIP switch settings. (Note that the location of this DIP Switch is model
dependent. Be sure to refer to the correct DIP switch, A or B, when setting.)
The ELC/ALC mode switch is used to select Electronic Light Compensation or Automatic Light
Compensation. The ALC setting is used for external autoiris and the ELC setting is used for internal autoiris.
Pole 1 of the DIP switch is set to ON for ELC and OFF for ALC.
The camera can operate independently, using its internal crystal controlled sync generator, or it may be
synchronized using line locking. To select one or the other of these sync modes, set the DIP switch on the
front camera board to either INT or LL. Pole 2 of the DIP switch is set to ON for INT and OFF for LL.
The AGC switch is used to activate the internal AGC circuit contained in the camera. When set to ON, the
AGC automatically boosts the camera sensitivity if the scene illumination is insufficient. To activate the AGC
circuit, Pole 3 of the DIP switch is set to the ON position.
The BLC switch is used to activate the automatic Backlight Compensation circuit in the camera. The BLC
select is used to automatically compensate for bright backgrounds. To activate the BLC circuit, Pole 4 of the
DIP switch is set to the ON position.
The default settings on all cameras are: ALC, LL, AGC ON and BLC ON.
The day/night camera includes a switch to select having the day/night feature turned ON or OFF. If day/night
is turned ON, at a low light level the camera changes to monochrome mode and the resolution and sensitivity
increase. Refer to Figure 3.
Figure 3
DIP Switch Settings
Lens Adjustment
The lens can be manually adjusted for focus and angle of view. On the lens, focus (near to infinity) is the front
ring and the telephoto/wide adjustment is the end ring. On autoiris lenses, iris adjustment may be required if
the picture appears dark or grainy or has poor color. There is a potentiometer (VR1) on the camera front
board to adjust the autoiris. Refer to Figure 2.
