CCTV Camera Pros Geovision 8.5 Multicam Digital Surveillance System - Manual (Page 654)

Appendix
A. USB Dongle Required for IP Device Applications
Solution Application USB Dongle
GV-Hybrid
DVR
Connection of 3rd party IP devices
to GV-System
NVR Dongle
GV-NVR Connection of 3rd party IP devices to GV-NVR NVR Dongle
GV-Center V2
Connection of GV IP devices
to Center V2
No extra dongle required
GV-Control
Center
Connection of both GV and 3rd party IP devices to
Control Center
No extra dongle required
Note: Currently, GV-Center V2 does not support the connection with 3 rd party IP devices.