54AXIS 240Q - 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. This is 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.

HTTP-S (HTTPS) - An extension to the HTTP protocol to support sending data securely over 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 AXIS 240Q user manual Glossary
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AXIS 240Q specifications

Axis Communications has long been a leading innovator in the field of network video surveillance, and one of its notable products is the AXIS 240Q. This powerful encoding unit has garnered attention for its versatility and robust feature set, making it an excellent choice for a variety of surveillance applications.

One of the standout features of the AXIS 240Q is its ability to support multiple video formats, making it suitable for both analog and digital cameras. With four channels, this encoding unit allows users to connect and manage up to four cameras simultaneously, significantly enhancing surveillance capabilities in diverse environments. Whether it’s securing a retail space or monitoring a parking lot, the AXIS 240Q ensures seamless integration with existing systems.

The device employs advanced video compression technologies, including Motion JPEG and MPEG-4, enabling efficient use of bandwidth and storage. These compression methods allow for high-quality video streaming while minimizing data usage, which is essential for organizations looking to maintain efficient surveillance operations without overwhelming their network infrastructure.

In terms of security, the AXIS 240Q is equipped with multiple security features to protect video feeds and ensure the integrity of recorded data. It supports secure HTTPS and SSL encryption, safeguarding data as it travels over the network. Additionally, the unit allows for user access control to manage permissions for different operators, further reinforcing the device's security profile.

The AXIS 240Q also comes with an easy-to-use web-based interface, facilitating simple configuration and remote management. This feature is particularly beneficial for organizations that require continuous monitoring and need quick access to settings, regardless of location.

With its compact design and robust build quality, the AXIS 240Q is suitable for a range of indoor and outdoor installations. The unit is also designed with flexibility in mind, allowing for easy integration with various third-party software solutions due to its compliance with industry standards such as ONVIF.

In summary, the AXIS 240Q from Axis Communications showcases a powerful blend of features and technologies tailored for modern surveillance needs. Its multi-channel capability, advanced compression methods, security features, and ease of use make it an essential tool for organizations aiming to enhance their security systems while optimizing operational efficiency. Whether used in small businesses or large enterprises, the AXIS 240Q continues to set the standard for reliability and performance in the surveillance market.
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