181
Installation Guide
Digital Zoom
Select to activate the Digital Zoom function e.g. the camera will zoom
within the actual image.
Optical Zoom Limit
Select to limit the Oracle Domes optical zoom function. By default
‘100x’ is selected and the camera can zoom to its maximum
capabilities. The optical zoom function can be limited to between 75%
and 100% magnification.
ICR
Oracle Domes with day/night cameras have an Infrared Cut Removal
(ICR) function which can enhance the camera’s sensitivity in low light
conditions as well as allowing infrared illumination to be used (infrared
is blocked by the IR cut filter). When ICR is ON, the camera switches
to monochrome mode, the IR cut filter is removed and the camera is
at its most sensitive. The default setting for the camera is AUTO ICR
where the filter is controlled automatically dependent on the scene
brightness determined by the camera. The camera can be forced to
stay in colour mode by setting ICR to OFF, or can be forced into mono
with maximum low light sensitivity by setting ICR to ON.
Alternatively ICR switching can be triggered in response to an alarm
input. This allows a photocell sensor to be connected to one of the
dome’s alarm inputs to control the ICR. This method can be used
to avoid instability that may occur when the camera controls the ICR
switching in marginally low light conditions. Removing the IR cut filter
due to low light can cause enough of an increase in scene brightness
and video level to make the camera return the IR cut filter and switch
immediately back to colour mode (at which point the video level drops
and the process is repeated).
White Balance
The Oracle Domes White Balance feature enables the camera to
compensate for different lighting scenarios which can effect the
colour quality of the displayed image. Select ‘Auto’ for the camera to
auto-compensate for white balance depending on current view. Select
‘Indoor’ to permanently set for best results in an indoor setting. Select
‘Outdoor’ to permanently set for best results in an outdoor setting.
Exposure
The Oracle Domes Exposure setting can be set to maintain optimum
contrast settings for the viewed image/camera location. Select ‘Full
Auto’ for the camera to auto-compensate for best exposure settings
depending on current view. Select ‘Manual’ to manually configure
exposure settings. Select ‘Shutter Priority’ to manually enter the shutter
speed.
Shutter Speed
If the Exposure feature is to be manually configured, enter the shutter
speed settings.
Coax Gain
If the camera feed to the unit originates from the coax output of the
Oracle Dome camera, the video signal can be boosted by increasing
the coaxial gain setting. The default gain is 0 to increase it select a
value between 1 and 100 until the optimum image quality is reached.
Coax Lift
If the camera feed to the unit originates from the coax output of the
Oracle Dome, the video signal can be boosted by increasing the coaxial
lift setting. Coaxial lift differs from gain as only the high frequency end
of the video signal spectrum is boosted, to compensate for the greater
attenuation of high frequencies in coax cables. The default gain is 0 to
increase it select a value between 1 and 100 until the optimum image
quality is reached.
UTP Boost
If the camera feed to the unit originates from the twisted pair output
of the camera. Two levels of boost can be activated to improve image
quality by compensating for losses in the cables.
Intelligent Security & Fire Ltd
Summary of Contents for DV-IP NV4
Page 1: ...Installation Guide I n t e l l i g e n t S e c u r i t y F i r e L t d ...
Page 239: ...239 Installation Guide I n t e l l i g e n t S e c u r i t y F i r e L t d ...
Page 240: ...240 NV4 I n t e l l i g e n t S e c u r i t y F i r e L t d ...
Page 244: ...www dedicatedmicros com MI I NV4 E1 0 I n t e l l i g e n t S e c u r i t y F i r e L t d ...
