Axis 212 PTZ-V User Manual

Also see for AXIS 212 PTZ: Specifications Product guide Datasheet Installation guide Product review guide

AXIS 212 PTZ/-V - Glossary of Termsintended address. As IP is a connectionless protocol, which means thatthere is no established connection between the communicationend-points, packets can be sent via different routes and do not need toarrive at the destination in the correct order.Once the data packets have arrived at the correct destination, anotherprotocol - Transmission Control Protocol (TCP) - puts them in the rightorder. See also TCP.IP Address - An IP address is simply an address on an IP network usedby a computer/device connected to that network. IP addresses allow allthe connected computers/devices to find each other and to pass databack and forth.To avoid conflicts, each IP address on any given network must beunique. An IP address can be assigned as fixed, so that it does notchange, or it can be assigned dynamically (and automatically) by DHCP.An IP address consists of four groups (or quads) of decimal digitsseparated by periods, for example, 130.5.5.25. Different parts of theaddress represent different things. Some part will represent the networknumber or address, and some other part will represent the localmachine address.See also IP (Internet Protocol).I-VOP - See VOP.JPEG (Joint Photographic Experts Group) - Together with the GIF fileformat, JPEG is an image file type commonly used on the web. A JPEGimage is a bitmap, and usually has the file suffix '.jpg' or “.jpeg.” Whencreating a JPEG image, it is possible to configure the level ofcompression to use. As the lowest compression (i.e. the highest quality)results in the largest file, there is a trade-off between image quality andfile size.kbit/s (kilobits per second) - A measure of the bit rate, i.e. the rate atwhich bits are passing a given point. See also Bit rate.LAN (Local Area Network) - A LAN is a group of computers andassociated devices that typically share common resources within alimited geographical area.Linux - Linux is an open source operating system within the Unixfamily. Because of its robustness and availability, Linux has wonpopularity in the open source community and among commercialapplication developers.MAC address (Media Access Control address) - A MAC address is aunique identifier associated with a piece of networking equipment, ormore specifically, its interface with the network. For example, thenetwork card in a computer has its own MAC address.Manual iris - This is the opposite to an auto iris, i.e. the camera irismust be adjusted manually to regulate the amount of light allowed toreach the image sensor.Mbit/s (Megabits per second) - A measure of the bit rate, i.e. the rateat which bits are passing a given point. Commonly used to give the“speed” of a network. A LAN might run at 10 or 100 Mbit/s. See also Bitrate.Monitor - A monitor is very similar to a standard television set, butlacks the electronics to pick up regular television signals.Motion JPEG - Motion JPEG is a simple compression/decompressiontechnique for networked video. Latency is low and image quality isguaranteed, regardless of movement or complexity of the image. Imagequality is controlled by adjusting the compression level, which in turnprovides control over the file size, and thereby the bit rate.High-quality individual images from the Motion JPEG stream are easilyextracted. See also JPEG.Megapixel - See Pixel.MPEG (Moving Picture Experts Group) - The Moving Picture ExpertsGroup develops standards for digital video and audio compression. Itoperates under the auspices of the International Organization forStandardization (ISO). The MPEG standards are an evolving series, eachdesigned for a different purpose.MPEG-2 - MPEG-2 is the designation for a group of audio and videocoding standards, and is typically used to encode audio and video forbroadcast signals, including digital satellite and Cable TV. MPEG-2, withsome modifications, is also the coding format used by standardcommercial DVD movies.MPEG-4 - MPEG-4 is a group of audio and video coding standards andrelated technology. The primary uses for the MPEG-4 standard are web(streaming media) and CD distribution, conversational (videophone), andbroadcast television.Most of the features included in MPEG-4 are left to individualdevelopers to decide whether to implement them or not. This means thatthere are probably no complete implementations of the entire MPEG-4set of standards. To deal with this, the standard includes the concept of“profiles” and “levels”, allowing a specific set of capabilities to bedefined in a manner appropriate for a subset of applications.Multicast - Bandwidth-conserving technology that reduces bandwidthusage by simultaneously delivering a single stream of information tomultiple network recipients.Multiplexer - A multiplexer is a high-speed switch that providesfull-screen images from up to 16 analog cameras. Multiplexers canplayback everything that happened on any one camera with nointerference from the other cameras on the system.Network connectivity - The physical (wired or wireless) and logical(protocol) connection of a computer network or an individual device to anetwork, such as the Internet or a LAN.NTSC (National Television System Committee) - NTSC is thetelevision and video standard in the United States. NTSC delivers 525lines at 60 half-frames/second.NWay - is a telecommunications protocol used to automaticallynegotiate the highest available transmission speed between networkdevices. The NWay protocol is also known as auto-negotiation orauto-sensing.OEM (Original Equipment Manufacturer) - This is a designation forcompanies that manufacture equipment which is then marketed andsold to other companies under their own names.PAL (Phase Alternating Line) - PAL is the dominant televisionstandard in Europe. PAL delivers 625 lines at 50 half-frames/second.PEM (Privacy Enhanced Mail) - An early standard for securingelectronic mail. The PEM-format is often used for representing an HTTPScertificate or certificate request.Ping - Ping is a basic network program used diagnostically to check thestatus of a network host or device. Ping can be used to see if a particularnetwork address (IP address or host name) is occupied or not, or if thehost at that address is responding normally. Ping can be run from for