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.
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. Vicon sets the ELC/ALC mode to ELC prior to
shipment.
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. Vicon
sets the mode setting to LL prior to shipment.
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. Vicon sets the AGC ON prior to shipment.
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. Vicon sets the BLC ON prior to shipment.
Figure 3
DIP Switch Settings
Lens Adjustment
The manual iris 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; iris is fixed.
Camera/Lens Positioning
The camera position can be adjusted in three axes, vertically (tilt), vertical height of the camera/lens
assembly and rotation about the lens axis (roll). Swivel the assembly for tilt position. The vertical height of the
camera/lens assembly can be adjusted by loosening the lock nut, changing the vertical position of the camera
mounting bracket within the slot in the mounting bracket and retightening the nut. The picture may be
“squared up” by rotating the camera about its own axis up to 360° (roll adjustment).
Note:
After all adjustments are made, be sure to tighten all bracket screws.
X935-20-00 Rev 1204 V894CSHR-VF/V894WSHR-VF High-Security Cameras
Installation
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