92AXIS 241Q/241S - Glossary

Glossary

ActiveX - A control (or set of rules) used by a browser. ActiveX controls are often downloaded and installed automatically as required.

API - Application Programming Interface. The Axis API can be used for integrating Axis products into other applications.

ARP - Address Resolution Protocol. Used to associate an IP address to a hardware MAC address. A request is broadcast on the local network to find out what the MAC address is for the IP address.

ARTPEC - Axis Real Time Picture Encoder - used for image compression.

BOOTP - A protocol that can automatically configure a network device (give it an IP address).

CGI - Common Gateway Interface. A set of rules (or a program) that allows a Web Server to communicate with other programs.

Client/Server - Describes the network relationship between two computer programs, in which one, the client, makes a service request from another - the server.

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

DSL - Digital Subscriber Line. A means of transferring data via standard phone lines.

Ethernet - A widely used networking standard. ETRAX - Axis' own microprocessor.

Firewall - A virtual barrier between a LAN (Local Area Network) and other networks, e.g. the Internet.

FTP - File Transfer Protocol. Used for the simple transfer of files to and from an FTP-server.

Full-duplex- Transmission of data, e.g. audio, in two directions simultaneously.

Half-duplex- A half-duplex link communicates in one direction at a time only, much like a walkie-talkie. Two way communication is possible, but not simultaneously.

HTTP - Hypertext Transfer Protocol. The set of rules for exchanging files (text, images, sound, video, and other files) on the World Wide Web.

Intranet - A private network limited to an organization or corporation. Usually closed to external traffic.

IP - Internet Protocol. See TCP/IP.

IP address - A unique number used by a computer on the network to allow it to be identified and found.

ISMA - Internet Streaming Media Alliance. JPEG - A standard image format, used widely for

photographs. Also known as JPG.

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

Linux - A popular operating system that is “open source” and practically free of charge.

Lux - A standard unit for light measurement.

Mbit/s - Megabits per second. A unit for measuring speeds in networks. A LAN might run at 10 or 100 Mbit/s.

MPEG-4- A video compression standard that makes good use of bandwidth, and which can provide DVD-quality video streams at less than 1 Mbit/s.

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

PEM - Privacy Enhanced Mail. An early standard for securing electronic mail. The PEM-format is often used for representing an HTTPS certificate or certificate request.

Ping - A small utility used for sending data packets to network resources to check that they are working and that the network is intact.

Pre/post alarm image - The images from immediately before and after an alarm.

Protocol - A special set of rules governing how two entities will communicate. Protocols are found at many levels of communication, and there are hardware protocols and software protocols.

Router - A device that determines the next network point to which a packet should be forwarded on its way to its final destination. A router is often included as part of a network switch (see below).

RTP- Real-Time Transfer Protocol. A transfer protocol designed for the delivery of live content, e.g. MPEG-4.

Simplex - In simplex operation, a network cable or communications channel can only send information in one direction; it's a “one-way street”.

Subnet Mask - An IP address consists of two components: the network address and the host address. “Subnetting’ enables a network administrator to further divide the host part of the address into two or more subnets. The subnet mask identifies the subnet to which an IP address belongs.

Switch - Whilst a simple hub transmits all data to all devices connected to it, a switch only transmits the data to the device it is specifically intended for.

SMTP - A common e-mail protocol.

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Axis Communications 241S, 241Q user manual Glossary, Photographs. Also known as JPG

241Q, 241S 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.