AVer SA series - Manual (Page 266)

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Appendix G Network Service Port
The following table shows the ports that DVR server uses for certain network service.
Port # Variable
Remote Console (CM 3000) 5550 Y
WebCam 80 Y
2-way audio 9999 Y
Remote Control (CM3000) 5555 Y
DVR POS 5150 Y
DVR DDNS (Upload / Download) 53 / 1053 N