6
Vista Varifocal Dome Cameras
Installation Instructions
INSTALLATION
Connections
Connect the power to the power connector jack.
Connect the video from the monitor to the Video connector BNC.
Ensure that the power is off before connection.
Check for correct polarity before connection. Improper
polarity may cause damage to the camera.
CONTROLS AND SWITCHES
AGC (Automatic Gain Control)
The Automatic Gain Control facility can improve picture quality when levels of illumination are
low. Select
ON
or
OFF
using the dip switch. For most applications, the AGC facility should be
ON
and is therefore the default setting.
BLC (Back Light Compensation)
The BLC (Back Light Compensation) facility compensates for back-lit scenes be enhancing
objects in the centre of the scene which would previously have been in silhouette. Select
ON
or
OFF
using the BLC switch. Default is
OFF
.
Lens Iris Level
Adjust the lens iris level according to the lighting conditions (to achieve video output level of 1V
peak-to-peak).
1. Turn the Automatic Gain Control
OFF
.
2. Adjust the Lens Level potentiometer. Use care so as not to damage the potentiometer.
3. Turn the Automatic Gain Control switch
ON
.
NOTE: SWITCHES 3 AND
4 HAVE NO FUNCTION
