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Category: Uncategorized> Dahua High Speed Dome > Dahua Standalone DVR > Network Video Server > RS485, RS422 (reserved), USB, RS232 & Network > Three Dimensional Joystick Control of PTZ Functions > Preset Position, Auto Scan, Auto Pan, Auto Tour & Pattern Auxiliary Functions > On-Screen Menu & User Operation Procedure Tips > Connect to SmartPSS or DSS platform via USB