Glossary Of Cctv Terms - Bosch DHR-1600A-150A Glossary

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Glossary of CCTV Terms

10/100 Base-T IEEE-802.3 specification for 10 or 100 MBit/s Ethernet.
AAC Advanced Alarm Control: A flexible and sophisticated alarm management subsystem that
allows rules to be created that define which input(s) activate one or more outputs. In its most
basic form, a rule could define which input(s) should activate which output(s). In a more
complex form, a rule can be programmed to take a specific keyboard command (pre-existing
or not) and perform a dome function, or any combination of the above.
ARP Address Resolution Protocol: A protocol for mapping MAC and IP addresses.
Address Each unit has a numerical address in the control system in which it is located. This allows the
appropriate unit to be operated.
Advanced Diagnostics
Bosch's combination of built-in On Screen Displays (OSD) and status LEDs that are used to
check critical camera parameters such as internal temperature, input voltage levels, and
network connectivity. This allows a technician to quickly determine the source of problems
and to ensure that the dome is functioning within the correct operating limits.
AGC Automatic Gain Control: The electronics that regulate the gain or amplification of the video
signal.
Aperture The size of the opening in the iris, which controls the amount of light that reaches the CCD
Sensor. The larger the F-Stop numbers, the less light reaches the sensor.
AutoBlack A technique of boosting the video signal level to produce a full amplitude video signal, even
when the scene contrast is less than full range (glare, fog, mist, etc.). The darkest part of the
signal is set to black and the lightest part to white, thus increasing the contrast.
AutoDome Fully integrated, high speed, pan/tilt/zoom camera built into a protective dome housing
allowing full and continuous 360° coverage of the scene.
AutoFocus The lens continuously adjusts to the correct focus automatically for the sharpest picture.
AutoIris The lens iris opening is automatically adjusted to allow the correct illumination of the camera
sensor.
AutoPan The camera pans continuously between right and left limit settings.
AutoPivot As the camera tilts through the vertical position, the camera rotates to maintain the correct
orientation of the image.
AutoPlayback This function records the sequence of movements of the camera's PTZ for later playback
allowing a set pattern to be repeated automatically. This function is often called Guard Tour.
AutoScaling As the camera zooms in to increase the size of objects on the monitor screen, the pan and tilt
speeds are reduced so that the relative speed on the screen remains constant for similar
joystick control positions.
AutoTrack A patented technology that integrates motion detection into the camera allowing tracking of
an object and zooming in to optimize size and perspective.
Bosch Security Systems
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Glossary of CCTV Terms
Glossary of CCTV Terms | en
AR18-08-B000 | | Version 1.0 | 2008.08
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