COP-USA USBDVR04SP - Manual (Page 81)

MAXDVR & DR Series Cards 81
Fig7.11 WebCam surveillance state
Alarm state monitor and PTZ control are all same as MAXDVR, we
would not need to give detail explanation here.
7.2 Remote Playback
Remote Playback server Configuration
For using our powerful remote playback function, users should first
enable Web Cam service and Remote Playback Service in Basic Configuration
(refer to Fig4.1 and Fig7.12).
Fig7.12 Remote playback service configuration
[RPB Port]: the default value is 13551