Axis Communications 243Q Compression See Image compression, De-interlacing See Interlacing

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of buildings. It is used to visually monitor the location for security or industrial purposes. Video from the CCTV system can be recorded and viewed on-site or remotely.

CCTV video camera - A traditional CCTV video camera is an analog camera, available in both monochrome (black and white) and color. Cameras can be set in fixed positions or placed on "Pan/Tilt/Zoom" devices, which allow the camera to be maneuvered. Using a zoom lens provides a closer view of the object being viewed. CCTV analog video cameras can be viewed over a computer network by using a video server.

CGI (Common Gateway Interface) - A specification for communication between a web server and other (CGI) programs. For example, a HTML page that contains a form might use a CGI program to process the form data once it is submitted.

CIF (Common Intermediate Format) - CIF refers to the analog video resolutions 352x288 pixels (PAL) and 352x240 pixels (NTSC). See also Resolution.

Client-server- Client-server describes the relationship between two computer programs in which one program, the client, makes a service request from another program, the server, which fulfils the request. Typically, multiple client programs share the services of a common server program. A web browser is a client program that requests services (the sending of web pages or files) from a web server.

CMOS (Complementary Metal Oxide Semiconductor) - A CMOS is a widely used type of semiconductor that uses both negative and positive circuits. Since only one of the circuit types is on at any given time, CMOS chips require less power than chips using just one type of transistor. CMOS image sensors also allow processing circuits to be included on the same chip, an advantage not possible with CCD sensors, which are also much more expensive to produce.

Coaxial cable - Coaxial cable is the standard means of transmitting analog video in a CCTV system. Coaxial is also used by cable companies to distribute television in residential buildings.

Codec - In communications engineering, a codec is usually a coder/decoder. Codecs are used in integrated circuits or chips that convert e.g. analog video and audio signals into a digital format for transmission. The codec also converts received digital signals back into analog format. A codec uses analog-to-digital conversion and digital-to-analog conversion in the same chip.

Codec can also mean compression/decompression, in which case it is generally taken to mean an algorithm or computer program for reducing the size of large files and programs.

Composite video - A type of video signal in which the red, blue and green signals (sometimes audio signals too)

AXIS 243Q Blade - Glossary 63

are mixed together.

Compression - See Image compression.

Contrast - Defines the degree of difference between the lightest and darkest parts of an image or video stream.

Control unit - If a CCTV system has more than one camera, there must be a way to control the video signals going to recorders and monitors. There are three basic types of Video Control Unit: Multiplexer, Switch and Quad.

dB (Decibels) - A unit to measure sound level changes. A 3dB change is the smallest level change we can hear. A 3dB change is actually twice or half the audio power level. A gain of 0dB will leave the signal level unchanged.

DC-Iris- This special type of iris is electrically controlled by the camera, to automatically regulate the amount of light allowed to enter.

Decoder - See Video decoder.

De-interlacing - See Interlacing.

DHCP (Dynamic Host Configuration Protocol) - DHCP is a protocol that lets network administrators automate and centrally manage the assignment of Internet Protocol (IP) addresses to network devices in a network.

DHCP uses the concept of a "lease" or amount of time that a given IP address will be valid for a computer. The lease time can vary, depending on how long a user is likely to require the network connection at a particular location.

DHCP also supports static addresses for e.g. computers running web servers, which need a permanent IP address.

DNS (Domain Name System) - DNS is used to locate and translate Internet domain names into IP (Internet Protocol) addresses. A domain name is a meaningful and easy-to-remember name for an Internet address. For example the domain name www.example.com is much easier to remember than 192.0.34.166. The translation tables for domain names are contained in Domain name servers.

Domain server - Domains can also be used by organizations that wish to centralize the management of their (Windows) computers. Each user within a domain has an account that usually allows them to log in to and use any computer in the domain, although restrictions may also apply. The domain server is the server that authenticates the users on the network.

Dome network camera - A remotely controllable camera mounted in a special housing, characterized by the dome shaped glass or plastic covering behind which the camera resides. Usually mounted on a ceiling and looking downwards, a dome camera can often rotate up to 360 degrees, thus providing excellent coverage of large areas.

Duplex - See Full-duplex.

DVD (Digital Versatile Disc) - An optic disc with the same

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Contents Axis 243Q Blade Video Server User’s Manual About This Document Page Contents Axis 243Q Blade Overview Product descriptionSwitches & connectors LED indicatorsAxis 243Q Blade Product description Access from a browser Accessing the video serverSetting the root password Live ViewLayout Axis 243Q Blade Accessing the video server Video streams Video stream typesMotion Jpeg MPEG-4 protocols and communication methods How to stream MPEG-4Other methods of accessing the video stream Axis Media Control AMCRTP/RTSP/HTTP or RTP/RTSP/HTTPS Other MPEG-4 clients Accessing the Setup link Configuring the video serverImage settings Video & ImageImage appearance Text overlay settings Video streamTest Advanced MPEG-4 settings Video source settingsBit Rate control Upload and use an overlay image Advanced Mjpeg settingsOverlay/Mask Settings Overlay/MaskOverlay image requirements Overlay image limitationsImage Formats Image Size Viewer Settings Live View ConfigDefault Video Format Default ViewerOutput Buttons Action ButtonsUser-defined Links Check Show custom linkInstalling PTZ devices Authentication keyPan Tilt Zoom Preset positions PTZ configurationPTZ controls Using CGI links to control PTZ devices PTZ control modesControl panel Advanced Guard tourPTZ control queue Using PTZ on video inputs Event configuration Event serversEvent types Enter the minimum time interval between triggers How to set up a triggered eventTriggered Event Click Add triggered... on the Event TypesHow to set up a scheduled event Scheduled eventClick Add scheduled... on the Event Types Camera tampering How to configure Motion Detection Click Motion Detection in the Event Config menuMotion detection Object Size Port statusIP Address Filter System optionsSecurity UsersIeee HttpsRadius Authentication processAxis 243Q Blade System options CA servers Date & timeNetwork Basic TCP/IP settingsIPv4 and IPv6 Address Configuration ServicesDNS configuration NTP configurationHost Name Configuration Link-Local IPv4 address NAT traversal port mapping for IPv4Network traffic QoS Quality of service QoS SettingsSmtp email UPnP BonjourPorts & devices System Overview MaintenanceSupport Support OverviewAbout Access Log The Access Log may be used for various purposesResetting to the factory default settings Non-inverting Terminal connectorPin Function Description RS-485-A11o Schematic diagram I/O terminal connectorAxis 243Q Blade 10oRS-485 COM port Troubleshooting Checking the firmwareUpgrading the firmware Emergency recovery procedure Video Image Problems Axis 243Q Blade cannot be accessed from a web browserAlarms, to a destination outside the local network Server is inaccessibleOnly I frames Snapshot imagesNTSC/PAL Technical specificationsMaintenance Weight Optimizing your system General performance considerationsBandwidth Axis 243Q Blade Glossary GlossaryDe-interlacing See Interlacing Compression See Image compressionFixed iris See Autoiris Encoder See Video encoderAn IP address consists of four groups or quads Megapixel See Pixel Axis 243Q Blade Glossary SSL/TSL An I-VOP is a complete image frame Generic Http Generic TCP/IP Factory default settings 49 firmwareLive view config IndexLive View Video source Video streams 12, 14, 18 Viewer settings
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243Q specifications

Axis Communications is a leading provider of network video solutions, renowned for its innovative products designed for various surveillance applications. Among their range of offerings, the Axis 243Q, 247S, 241S, Q74011, and 241QA stand out for their impressive features, advanced technology, and robust characteristics tailored to enhance security and monitoring.

The Axis 243Q is a high-performance network camera that excels in delivering exceptional video quality. With a resolution of up to 2048x1536 pixels, it supports high-definition video streaming, ensuring that even the smallest details are captured with clarity. This camera is equipped with Axis’ unique Lightfinder technology, which enables superior low-light performance, making it ideal for surveillance in poorly lit environments. Additionally, it features multiple compression formats, including H.264 and Motion JPEG, which help to optimize bandwidth and storage requirements.

The Axis 247S is a compact and versatile network camera that incorporates a seamless design suitable for various interior settings. It boasts a dual stream capability, meaning it can transmit two video streams simultaneously, which can be tailored for different resolutions and frame rates. This feature is particularly beneficial for resource management, allowing users to view lower-resolution streams remotely while saving storage space. Furthermore, the 247S’s built-in audio support allows for two-way communication, enhancing security collaboration.

The Axis 241S network camera is designed for reliable monitoring and high-quality video surveillance in both indoor and outdoor applications. With its weather-resistant housing, it excels in challenging environmental conditions. This camera offers multiple lens options and has infrared illumination capabilities, allowing for night-time surveillance without compromising visibility. The 241S's Power over Ethernet (PoE) support simplifies installation by allowing the camera to receive power and data through a single cable.

For a more advanced solution, the Axis Q74011 Video Encoder facilitates the integration of analog cameras into IP networks seamlessly. It converts analog video signals into digital IP streams, enabling the incorporation of traditional cameras into modern network infrastructures. This versatility allows businesses to upgrade their surveillance systems incrementally without having to replace existing equipment fully.

Lastly, the Axis 241QA camera combines the advantages of image quality with intelligent video analytics. It incorporates advanced algorithms for motion detection, line crossing, and object removal, enhancing monitoring efficiency. The camera’s lens is designed for up to 30 frames per second at full resolution, providing smooth and fluid video for critical surveillance applications.

In summary, the Axis 243Q, 247S, 241S, Q74011, and 241QA collectively represent Axis Communications' dedication to innovation, quality, and user-centric design. With various features such as high-resolution video streaming, adaptability to diverse environments, and advanced analytics, these models cater to a wide range of security needs across various sectors.
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