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100 en | Glossary of CCTV Terms VG4 AutoDome Modular Camera System
F.01U.089.433 | 4.0 | 2008.09 User’s Manual Bosch Security Systems, Inc.
N
National Pipe Thread
A U.S. standard for tapered threads. NPT sizes measure the nominal inside diameter of the
pipe. NPT threads form a seal as the threads compress against each other.
NEMA Rating Specification standards in reference to the operating environment for a variety of electrical
devices.
NightSense A method of boosting the sensitivity of high-resolution Bosch color cameras by 9db (a factor
of 3) by combining the signal of the color image in a single monochrome picture.
NPT See National Pipe Thread.
O
On-screen Display Menus are shown on the display monitor.
OSD See On-screen Display.
P
Pan Camera movement in the horizontal direction.
Pixel The smallest addressable unit on a display screen or bitmapped image.
Pre-Position A pre-selected and stored combination of pan, tilt and zoom positions that allow a set view to
be recalled. Also known as Preset Shot.
Preset Tour A sequence of preset shots combined to provide a pre-programmed tour of the area covered
by an AutoDome camera.
Pressurized Dry Nitrogen Housing
A housing for outdoor applications that protects against smog, humidity, dirt and dust.
Privacy Masking The ability to mask out a specific area to prevent it being viewed.
R
Region of Interest The defining of a specific area within a field of view to be used by the motion detection
algorithm to only look for motion within this region.
Resolution The measure of the fine detail that can be seen in an image. For analog systems this is
typically measured in Television Lines or TVL. The higher the TVL rating, the higher the
resolution.
RS232/485 A communication interface for third party control and firmware upgrades to the AutoDome
products.
Rule AutoDome’s alarm management subsystem that uses “if this, do that” rules to perform
specific actions when an event occurs.