Axis Communications AXIS Q1755 VOP See VOP, MAC address Media Access Control address a MAC

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Interlacing was developed many years ago for the analog TV world and is still used widely today. It provides good results when viewing motion in standard TV pictures, although there is always some degree of distortion in the image.

To view interlaced video on e.g. a computer monitor, the video must first be de-interlaced, to produce progressive video, which consists of complete images, one after the other, at 25 frames per second. See also Progressive scan.

IP (Internet Protocol) - The Internet Protocol is a method transmitting data over a network. Data to be sent is divided into individual and completely independent "packets." Each computer (or host) on the Internet has at least one address that uniquely identifies it from all others, and each data packet contains both the sender's address and the receiver's address.

The Internet Protocol ensures that the data packets all arrive at the intended address. As IP is a connectionless protocol, which means that there is no established connection between the communication end-points, packets can be sent via different routes and do not need to arrive at the destination in the correct order.

Once the data packets have arrived at the correct destination, another protocol - Transmission Control Protocol (TCP) - puts them in the right order. See also TCP.

IP Address - An IP address is simply an address on an IP network used by a computer/device connected to that network. IP addresses allow all the connected computers/devices to find each other and to pass data back and forth.

To avoid conflicts, each IP address on any given network must be unique. An IP address can be assigned as fixed, so that it does not change, or it can be assigned dynamically (and automatically) by DHCP.

An IP address consists of four groups (or quads) of decimal digits separated by periods, e.g. 130.5.5.25. Different parts of the address represent different things. Some part will represent the network number or address, and some other part will represent the local machine address.

See also IP (Internet Protocol).

I-VOP - See VOP.

JPEG (Joint Photographic Experts Group) - Together with the GIF file format, JPEG is an image file type commonly used on the web. A JPEG image is a bitmap, and usually has the file suffix '.jpg' or ".jpeg." When creating a JPEG image, it is possible to configure the level of compression to use. As the lowest compression (i.e. the highest quality) results in the largest file, there is a trade-off between image quality and file size.

kbit/s (kilobits per second) - A measure of the bit rate, i.e. the rate at which bits are passing a given point. See also Bit rate.

LAN (Local Area Network) - A LAN is a group of computers and associated devices that typically share common resources within a limited geographical area.

Linux - Linux is an open source operating system within the UNIX family. Because of its robustness and availability, Linux has won popularity in the open source community and among commercial application developers.

MAC address (Media Access Control address) - A MAC

AXIS Q1755/-E - Glossary of Terms

address is a unique identifier associated with a piece of networking equipment, or more specifically, its interface with the network. For example, the network card in a computer has its own MAC address.

Manual iris - This is the opposite to an autoiris, i.e. the camera iris must be adjusted manually to regulate the amount of light allowed to reach the image sensor.

Mbit/s (Megabits per second) - A measure of the bit rate, i.e. the rate at 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 Bit rate.

Monitor - A monitor is very similar to a standard television set, but lacks the electronics to pick up regular television signals.

Motion JPEG - Motion JPEG is a simple compression/decompression technique for networked video. Latency is low and image quality is guaranteed, regardless of movement or complexity of the image. Image quality is controlled by adjusting the compression level, which in turn provides control over the file size, and thereby the bit rate.

High-quality individual images from the Motion JPEG stream are easily extracted. See also JPEG.

Megapixel - See Pixel.

MPEG (Moving Picture Experts Group) - The Moving Picture Experts Group develops standards for digital video and audio compression. It operates under the auspices of the International Organization for Standardization (ISO). The MPEG standards are an evolving series, each designed for a different purpose.

MPEG-2 - MPEG-2 is the designation for a group of audio and video coding standards, and is typically used to encode audio and video for broadcast signals, including digital satellite and Cable TV. MPEG-2, with some modifications, is also the coding format used by standard commercial DVD movies.

Multicast - Bandwidth-conserving technology that reduces bandwidth usage by simultaneously delivering a single stream of information to multiple network recipients.

Network connectivity - The physical (wired or wireless) and logical (protocol) connection of a computer network or an individual device to a network, such as the Internet or a LAN.

NTSC (National Television System Committee) - NTSC is the television and video standard in the United States. NTSC delivers 525 lines at 60 half-frames/second.

NWay - A network protocol that automatically negotiates the highest possible common transmission speed between two devices.

PAL (Phase Alternating Line) - PAL is the dominant television standard in Europe. PAL delivers 625 lines at 50 half-frames/second.

Ping - Ping is a basic network program used diagnostically to check the status of a network host or device. Ping can be used to see if a particular network address (IP address or host name) is occupied or not, or if the host at that address is responding normally. Ping can be run from e.g. the Windows Command

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Contents USER’S Manual Axis Q1755/-E User’s Manual Axis Q1755/-E Table of contents Contents Key features Product DescriptionAxis Q1755/-E Product Description Overview Rear view Bottom viewAlarm output connected at delivery Axis Q1755-EAccessing the Camera Access from a browserAxis Q1755/-E Accessing the Camera Setting the root password Access from the internetClick the Create self-signed certificate button General controls Setup Events GatekeeperLive View Axis Media Control toolbarHalf-duplex mode AMC Audio controlsHow to stream H.264 Video StreamsAxis Q1755/-E Video Streams Axis Q1755/-E Video Streams Axis Media Control AMC Alternative methods of accessing the video streamMotion Jpeg Unicast via Rtsp axrtsp//ip/axis-media/media.ampBasic Setup Axis Q1755/-E Basic SetupVideo & Audio Video StreamAudio Axis Q1755/-E Video & Audio Text Overlay Settings264 GOV Settings Bit Rate ControlStream Profiles Camera SettingsExposure Settings White balanceFocus and zoom Overlay ImagePrivacy mask Audio Channels Audio SettingsAudio mode The available audio modes are Audio InputAxis Q1755/-E Video & Audio Audio Output Default Viewer Live View ConfigAxis Q1755/-E Live View Config LayoutUser Defined Links Viewer SettingsAction Buttons Other browsersAxis Q1755/-E Live View Config Output Buttons Advanced Pan/Tilt Preset PositionsPTZ Pan Tilt Zoom DeviceEnable/Disable controls Control Queue SettingsPanel Shortcut Command Buttons ControlsEvent Types EventsEvent Servers Axis Q1755/-E EventsAxis Q1755/-E Events Triggered Event How to set up a triggered eventFollowing example describes how to set up a triggered event Save streamGatekeeper How to set up a scheduled eventSettings Camera tamperingMotion Detection Set up a motion detection include windowAfter you define these settings, click Save Go to Events Motion DetectionPort Status ExamplesRecording List Axis Q1755/-E Recording ListRemove button is used to delete unlocked recordings Axis Q1755/-E System Options System OptionsSecurity UsersAudio Support Axis Q1755/-E System Options IeeeCertificates IPv4 Address Configuration Basic TCP/IP SettingsNetwork Settings Date & TimeServices Advanced TCP/IP SettingsIPv6 Address Configuration DNS ConfigurationHttp and Https LAN intranetLink-Local IPv4 Address NAT traversal port mapping for IPv4Snmp v1/v2 QoS Quality of ServiceSmtp email As the Internet. See the online help for more informationStorage Ports & DevicesLED Settings MaintenanceSupport Advanced Plain ConfigConfiguration File UploadAbout Resetting to the Factory Default SettingsUsing the Control Button Axis Q1755/-E AboutUnit connectors Axis Q1755/-E Unit connectorsLED indicators Emergency Recovery Procedure TroubleshootingAxis Q1755/-E Troubleshooting Checking the FirmwareAxis Q1755/-E Troubleshooting Axis Support Router to allow access to the camera Installation GuideGuide or the ARP/Ping commands Check the Internet firewall with your system administratorSet to Decode only I frames Existing files to free up space Volume settings are correctServer. This is enabled under System Options Date & Time NanceTechnical Specifications Axis Q1755/-E Technical SpecificationsSystem Application Alarm triggersAlarm events Integration ProgrammingDimensions PowerConnectors WeightGeneral performance considerations Glossary of Terms Axis Q1755/-E Glossary of TermsEtrax Ethernet Token Ring Axis Axis own microprocessor Half-duplex See Full-duplexMAC address Media Access Control address a MAC VOP See VOPAxis Q1755/-E Glossary of Terms URL Uniform Resource Locator An address on the network More secure the encryption Active/Inactive 22 Alarm 28, 41 AMC 7 ARP/Ping 34 Audio Backup Bit Rate Bonjour Buffer SizeAxis Q1755/-E Index Video Stream