Digisol DG-SC2600 User Manual page 114

DG-SC2600/DG-SC2600W User Manual
DDNS (Dynamic DNS): Used to create a fixed domain name for dynamic internet
ip address. A domain name is a meaningful and easy-to-remember name for an
Internet address. Normally used when the ISP has provided you with dynamic internet
ip address to access the camera remotely.
SMTP (Simple Mail Transfer Protocol): SMTP is used for sending and receiving
e-mail. SMTP authentication is an extension of SMTP, whereby the client is required
to log into the mail server before or during the sending of email. It can be used to
allow legitimate users to send email while denying the service to unauthorized users,
such as spammers.
FTP (File Transfer Protocol): FTP is an application protocol that uses the TCP/IP
protocols, used to exchange files between computers/devices on networks. Network
cameras with embedded operating systems use FTP to send camera images to an
authorized user's computer or web site.
UPnP (Uni versal Plu g & Play ): A set of computer network protocols that allow
the automatic peer-to-peer detection of devices on the network. Allows the discovery
of UPnP- enabled devices in a network environment.
RTSP (Real T ime Streaming protocol): RTSP is a control protocol for Internet
streaming of audio and video. Mostly used for remote viewing of live or stored
security camera video over the Internet. RTSP can be considered as a "remote
control" for controlling the media stream delivered by a media server. RTSP servers
typically use RTP as the protocol for the actual transport of audio/video data.
CMOS Sensor (Compliment ary met al-oxide semiconductor ): Is an image
sensor available in many IP network cameras with less circuitry hence consumes less
power, produces higher frame rate & is less costly as compared to CCD sensors.
IR LED (Infrared LED): Infrared radiation is radiation at a longer wavelength than
visible light, which means it cannot be seen by the naked eye. These cameras are well
suited for surveillance of low light areas or areas with no light at all. Infrared LED's
surround the lens and shine infrared light, illuminating the scene.
Pan/Tilt: IP cameras with panning capabilities can move back and forth horizontally
in order to monitor wider areas. In many cases a camera's panning functionality can
be controlled remotely from network PC using video management software. Tilt refers
to an IP camera's ability to be directed up and down in a vertical plane. The camera
lens can be aimed at a specific part of a scene, and in many cases the tilt can be
controlled remotely.
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