Bosch DHR-1600A-150A, Глоссарий

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en | Glossary of CCTV Terms Camera, DVR, and VIP products
AR18-08-B000 | | Version 1.0 | 2008.08 Glossary of CCTV Terms Bosch Security Systems
AWB Auto White Balance: A feature that allows a color camera to automatically adjust its output
color to give a natural color, independent of the lighting used.
B
Balun Short for Balance/Unbalanced. A device that converts a balanced video signal (e.g. as used on
twisted pair) line to an unbalanced signal (e.g. as used on coax). In a balanced line both wires
are electrically equal. In an unbalanced line one wire has different electrical properties than
the other.
Baud Unit of measure for the speed of data transmission.
Bilinx A communications protocol that allows remote control, configuration, and updates to be
performed over the video cable (Coax or Passive UTP).
Bilinx address The address may be set locally using the Bilinx Configuration Tool for Imaging Devices (CTFID)
or remotely using the Fast Address function (
see
Fast Address).
Biphase Pan/Tilt/Zoom protocol for Bosch products.
Bit/s Bits per second, the actual data rate.
BLC Back Light Compensation: Selectively amplifies parts of the image to compensate for large
contrast differences when only a portion of the image is brightly lit (e.g. a person in a sunlit
doorway).
C
Cable Category Application and bandwidth rating system for UTP cabling. Categories 1 through 7 are based on
EIA/TIA-568-B standards. Category is typically abbreviated CAT. UTP Category 5, 5e, 6, and 7
are used for Ethernet data cabling applications. Ethernet wiring distances are limited to a
maximum of 100 m (328 ft.) when using UTP wiring.
Cable Compensation A technology that prevents image degradation caused by signal losses when transmitting
video over long cable lengths.
CCD Charged Coupled Device: A type of solid state image sensor used in CCTV cameras. The
sensor converts light energy into electrical signals.
CCD Format Indicates the size of the camera sensor used. In general, the larger the sensor, the more
sensitive the camera and the better the image quality. The format is quoted in inches, for
example 1/4 or 1/3 inch.
CCTV Closed Circuit TeleVision: A video system that transmits television signals over a closed (non-
broadcast) system.
CF CompactFlash: Digital storage media - used in computers, digital cameras, and Personal
Digital Assistants (PDA) in the form of CF cards.
CIF Common Intermediate Format: Video format with 352 × 288/240 pixels.
Color Temperature A measure of the relative color of illumination. Generally used to specify the color balance
correction of a camera to achieve a natural color image.
CTFID Configuration Tool for Imaging Devices: Bosch software used to configure and update
cameras and other remote devices over video cable using Bilinx, and to save them for later
use.