Alinking ALC-9451 Manual do Utilizador descarregar pdf (Página 40)

Viewing option is from 0.5 to 4 times the screen size.

Note: When you use zoom in, the screen seems rough because the resolution after digital

zoom exceeds the original resolution.

Digital zoom

17. Streaming: sets the video stream protocol (HTTP is recommended)

This product provides three different video streaming protocols: UDP, TCP, and

HTTP. HTTP is recommended because it allows the video stream to go through

the firewall. (Refer to Setting/Basic Setting/Network/Streaming for more

information).

UDP: provides the fastest but most unreliable transmission service. Video steams

are transmitted through UDP Port (50000~60000 by default) to ensure the

fastest image transmission. However, video fragment or mosaics may occur

due to poor transmission quality.

TCP: provides reliable data transmission. Video steams are transmitted through

RTSP Port (554 by default) to avoid video fragment or mosaics due to poor

transmission quality.

HTTP: Video streams are transmitted through HTTP Port (80 by default) to ensure

passing through firewalls.

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Alinking ALC-9451 Manual do Utilizador Página 40