Datasheet

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T24 System Manual Part 1: MOBOTIX Glossary
© MOBOTIX AG • Security-Vision-Systems • Made in Germany
www.mobotix.com • [e-mail]
Image Compression
Image compression reduces the file size of an image. This is particularly important when
transferring and saving files.
IP Address
The IP address refers to the address of a computer or device in an IP network. Using IP
addresses, all computer/devices connected to the network can be identified, and data can
be transferred in both directions. Every IP address must be unique to the network in question
in order to prevent conflicts. IP addresses can be assigned as fixed addresses so that they
are never changed, or they can be allocated dynamically (and automatically) via DHCP.
Every IP address consists of four groups (or quads) of decimal digits, which are separated
from one another by full points, such as 130.5.5.25. Each quad within the address provides
dierent information. One quad represents the network number or address; another the
address of the local computer.
IP Camera
An IP camera is a special type of video camera. This kind of camera diers from other video
cameras in that it forwards its images via IP networks. Network cameras also include a
computer in addition to the actual camera components. The integrated computer deals
with compressing the image data and ensures that data is sent via the network. It mainly
consists of a CPU, Flash memory and DRAM memory. The network camera software
enables the device to appear in the network as a web server, FTP server, as well as an
FTP client or e-mail client.
IP Network
Data network based on the Internet protocol (TCP/IP).
JPEG
Abbreviation for Joint Photographic Experts Group, responsible for the development of the
JPEG standard method for image compression. JPEG is the most common lossy image
format for photos on the Internet. Loss in image quality is barely noticeable at compression
rates ranging from 60% to 99%.
LAN (Local Area Network)
A LAN consists of a series of computers and associated devices that use the same
communication resources in a restricted geographical area.
LED
Abbreviation for Light Emitting Diode; an electronic semiconductor component built into
MOBOTIX cameras and add-on modules that emits light when a current flows through
the component in the correct direction.
Lux
The unit for measuring the quantity of light.