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T24 System Manual Part 2: MOBOTIX Glossary

www.mobotix.com • [email protected]

MOBOTIX GLOSSARY

Bonjour

Also known as Zeroconf networking. Bonjour enables automatic identiﬁcation of computers,

devices and services in IP networks. Bonjour also enables the automatic detection of

devices among one another, without the user having to enter IP addresses or conﬁgure

the DNS server. Bonjour was developed by Apple, Inc.

CCTV

Abbreviation for Closed Circuit Television. A television system in which the analog video

signal is only transmitted to monitors in a speciﬁc environment (for example, within a

building). The term CCTV is often used for video surveillance systems.

CIF, 2CIF, 4CIF (in accordance with PAL TV standard)

Common Intermediate Format: CIF = 1/4 TV image with 288 lines and 352 pixels (0.1

megapixel); 2CIF = 1/2 TV image, also with 288 lines but 704 pixels (0.2 megapixel);

4CIF = quality of a conventional TV image with 576 lines and 704 pixels (0.4 megapixel).

CMOS Sensor

Abbreviation for Complementary Metal Oxide Semiconductor sensor. Sensor for energy-

ecient digitalization of image information. CMOS sensors are used as image sensors

in digital cameras.

DHCP

Abbreviation for Dynamic Host Conﬁguration Protocol. Allows a server to automatically assign

devices in the network with the appropriate conﬁguration (including the IP address, DNS

server and gateway), as opposed to static IP addresses on the individual network devices.

DNS

Abbreviation for Domain Name Service. Allows the domain names of servers on the

Internet (for example, www.mobotix.com) to be linked (“resolved”) to their corresponding

IP addresses (for example, 212.89.150.84).

Door Opener

The door opener (also known as e-opener or electric door opener) is installed as a

counterpart to the door lock. The door opener has a closing latch, which connects with

the door closer and keeps the door locked until contact is made from the interior of the

building. This contact raises the lock of the door opener latch, and the latch is unlocked

electromagnetically. The door at the exterior entrance can now be opened. As soon as

the door is fully closed again, the latch in the door opener is automatically blocked. The

door is locked again.

The approval to open the door can be indicated by various means (e.g., dialing tone).

Door openers are primarily intended for daytime use. At night, the door in question should

be locked using the bolt lock.

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Mobotix T24S Technical Information Page 90