Mobotix T24 Technické informace stáhnout pdf (Strana 111)

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DVR

Abbreviation for Digital Video Recorder.

DynDNS

Abbreviation for Dynamic DNS (or DDNS, Dynamic Domain Name Service). Similar to DNS,

this links domain names (e.g., mydomain.com) with IP addresses, whereby the IP addresses

may change at any time. This service provides a convenient method to access your MOBOTIX

cameras from home or work if the camera Internet connection is not through a router that

assigns a ﬁxed IP address, but instead over a DSL connection with a dynamically-assigned

IP address from the provider. A well-known provider of this service is www.dyndns.org.

Ethernet

Ethernet is the most widely-used LAN technology. Ethernet LANs are usually based on

twisted pair cabling with special characteristics. The most widely-used Ethernet systems

are 10BASE-T and 100BASE-T10, which enable data transfer rates of up to 10Mbps and

100Mbps, respectively.

Factory Settings

These are the default settings with which a device leaves the manufacturer’s factory

when it is shipped. If it is necessary to restore a device to its factory default settings, all

the settings changed by the user will usually be lost.

fps

Abbreviation for “frames per second.” See Frame rate.

Frame Rate

The frame rate speciﬁes how many frames per second (fps) are generated and sent by

the camera. 16fps and higher is perceived by the human eye as a ﬂuid video sequence.

G.711

Refers to the process(es) by which analog audio signals are encoded and decoded.

This codec (= enCOder-DECoder) is used in classic telephone systems and IP telephony.

H.264

The process by which the video image is encoded/compressed and decoded.

HDTV

Abbreviation for High Deﬁnition TV.

HiRes

Abbreviation for High Resolution. Refers to high-resolution images (above 1megapixel).

Image Compression

Image compression reduces the ﬁle size of an image. This is particularly important when

transferring and saving ﬁles.

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