52AXIS 207W/AXIS 207MW - Glossary of Terms

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.

Compression - See Image Compression.

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

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

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 who 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.

Duplex - See Full-duplex.

Ethernet - Ethernet is the most widely installed local area network technology. An Ethernet LAN typically uses special grades of twisted pair wires. The most commonly installed Ethernet systems are 10BASE-T and 100BASE-T10, which provide transmission speeds up to 10 Mbps and 100 Mbps respectively.

ETRAX (Ethernet Token Ring AXIS) - Axis' own microprocessor.

Factory default settings - These are the settings that originally applied for a device when it was first delivered from the factory. If it should become necessary to reset a device to its factory default settings, this will, for many devices, completely reset any settings that were changed by the user.

Firewall - A firewall works as a barrier between networks,

e.g. between a Local Area Network and the Internet. The firewall ensures that only authorized users are allowed to access the one network from the other. A firewall can be software running on a computer, or it can be a standalone hardware device.

Focal length - Measured in millimetres, the focal length of a camera lens determines the width of the horizontal field of view, which in turn is measured in degrees.

FTP (File Transfer Protocol) - An application protocol that uses the TCP/IP protocols. It is used to exchange files between computers/devices on networks.

Frame - A frame is a complete video image. In the 2:1 interlaced scanning format of the RS-170 and CCIR formats, a frame is made up of two separate fields of 262.5 or 312.5 lines interlaced at 60 or 50 Hz to form a complete frame, which appears at 30 or 25 Hz. In video cameras with a progressive scan, each frame is scanned line-by-line and not interlaced; most are also displayed at 30 and 25 Hz.

Frame rate - The frame rate used to describe the frequency at which a video stream is updated is measured in frames per second (fps). A higher frame rate is advantageous when there is movement in the video stream, as it maintains image quality throughout.

Full-duplex - Transmission of data in two directions simultaneously. In an audio system this would describe e.g. a telephone systems. Half-duplex also provides bi-directional communication, but only in one direction at a time, as in a walkie-talkie system. See also Simplex.

Gain - Gain is the amplification factor and the extent to which an analog amplifier boosts the strength of a signal. Amplification factors are usually expressed in terms of power. The decibel (dB) is the most common way of quantifying the gain of an amplifier.

Gateway - A gateway is a point in a network that acts as an entry point to another network. In a corporate network for example, a computer server acting as a gateway often also acts as a proxy server and a firewall server. A gateway is often associated with both a router, which knows where to direct a given packet of data that arrives at the gateway, and a switch, which furnishes the actual path in and out of the gateway for a given packet.

GIF (Graphics Interchange Format) - GIF is one of the most common file formats used for images in web pages. There are two versions of the format, 87a and 89a. Version 89a supports animations, i.e. a short sequence of images within a single GIF file. A GIF89a can also be specified for interlaced presentation.

GOV (Group Of VOPs) - A group of VOP's is the basic unit of an MPEG-4 video stream. The GOV contains different types and numbers of VOP's (I-VOP's, P-VOP's, etc) as determined by the GOV length and GOV structure. See also VOP.

GOV length - The GOV length determines the number of

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Axis Communications 207W user manual Compression See Image Compression

207W specifications

The Axis Communications 207W is a versatile and compact network camera designed to offer high-quality video surveillance along with ease of installation and use. A part of Axis’s extensive range of cameras, the 207W brings features you would expect from a professional-grade security camera while ensuring flexibility for small to medium-sized installations.

One of the standout features of the Axis 207W is its wireless connectivity. This allows users to place the camera in locations where running cables would be challenging or impractical. The camera supports Wi-Fi connectivity, which simplifies the installation process significantly and offers greater freedom in positioning the device for optimal field of view.

Equipped with a 1/4-inch progressive scan CMOS sensor, the Axis 207W captures high-resolution video at a resolution of 640x480 pixels. The camera's frame rate supports up to 30 frames per second in standard quality, ensuring smooth video playback and reliable motion detection. This is particularly beneficial for environments where detail is crucial, such as retail stores and office spaces.

The camera also leverages Axis’s renowned Color and Day/Night technology, allowing it to automatically switch between color mode during the day and black-and-white mode at night. The infrared capability enhances nighttime surveillance, ensuring that users receive clear images even in low-light conditions, significantly improving security around the clock.

In terms of durability, the Axis 207W is designed with a solid construction, making it suitable for both indoor and outdoor deployment. The camera includes a tamper-resistant feature, adding an additional layer of security.

Easy integration is another vital characteristic of the 207W. It supports various streaming protocols, including RTSP and RTP, facilitating seamless integration with existing surveillance systems or third-party applications. This versatility allows for flexible use in different environments without locking users into a specific ecosystem.

The user-friendly interface accompanying the camera enhances its accessibility for users of all experience levels, making it easy to manage and configure settings via a web-based interface. Overall, the Axis Communications 207W stands out as a powerful and flexible solution for those seeking reliable security surveillance technology. With its robust feature set, it caters to a wide range of applications, ensuring peace of mind for users.