Bosch DHR-1600A-150A CCTV Glossary - Page 12

12 en | Glossary of CCTV Terms Camera, DVR, and VIP products Tri-streaming TTL UDP URL UTP Virtual Masking VMD WAN XF-Dynamic Zoom A Bosch encoding technology that generates two separate MPEG-4 video streams and one MJPEG stream simultaneously. This advanced streaming capability enables the user to tune live viewing and recording requirements independently to meet specific site and enterprise requirements. Time-To-Live: Life cycle of a data packet in station transfers. U User Datagram Protocol: One of the core protocols of the Internet Protocol suite. Using UDP, programs on networked computers can send short messages, sometimes known as datagrams, (using Datagram Sockets) to one another. UDP is sometimes called the Universal Datagram Protocol. Uniform Resource Locator: Previously Universal Resource Locator. The unique address for a file that is accessible on the Internet. Unshielded Twisted Pair: A variant of twisted pair cabling, UTP cable is not surrounded by any shielding. The wires in a twisted pair cable are twisted around each other to minimize interference from the other twisted pairs in the cable. UTP is the primary wire type for telephone usage and the most commonly used type of networking cable. V A unique Bosch technology that creates invisible motion masking areas. These invisible masks are similar to privacy zones but only the camera's algorithms can see them. This allows the camera to ignore areas of unwanted motion. Video Motion Detection: An algorithm for motion detection in which the camera compares the current image with a reference image and counts the number of pixels (see Pixel) that have changed between the two images. An alarm is generated when the number of pixel changes exceeds a user-configured threshold. W Wide Area Network: A long distance link used to extend or connect remotely-located local area networks. X A highly accurate, 15-bit digital signal processing technology from Bosch that extends the dynamic range of DinionXF cameras. XF-Dynamic optimizes the detail in both the high and low light areas of the scene simultaneously, maximizing the information visible in the picture. Z Changing the effective focal length to allow different fields of view to fill the picture area. Zoom can be optical, where the lens is adjusted, or digital, where a portion of the view selected is magnified electronically. AR18-08-B000 | | Version 1.0 | 2008.08 Glossary of CCTV Terms Bosch Security Systems