Alphatech IPDPS-01C Manual do Utilizador descarregar pdf (Página 29)

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4 TECHNICAL PARAMETERS

4.1 Electric Parameters

4.2 Mechanical Measurements

The covers of all the Door Entry System covers are IP44 to protect against water intrusion.

4.3 Video Parameters

Video for WEB

Internet Explorer - (series of JPEG pictures-Port 80) uses constantly repeated http request

address/video.jpg.

Mozilla, Opera, Firefox (a program PopUp, UDVguard) – (MJPEG stream – Port80) uses

http request address/video.mjpg (sometimes it is necessary to reload before it starts running

properly). These browsers are preferable to Internet Explorer because the video viewing is

smoother and has less impact on the network load.

Streaming video for IP phones

 H.263 formatting is set automatically between the Door Entry System and the

videophone via a SIP/SDP protocol on a standard SIP port and video (and sound)

which then runs via RTP protocol on ports agreed via SIP (usually 9078).

Video parameters

 JPG pictures are created in the camera and for all transmitting protocols are the

same.

 The size (resolution) of video is selected in “Video setting” on the WEB.

 Maximum size depends on the USB camera type but is usually 640x480.

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Alphatech IPDPS-01C Manual do Utilizador Página 29