Support MAGNUS PTZ Camera Supporting ONVIF, VISCA, Serial port VISCA, PELCO-D/P protocols and etc. RJ45, RS422, RS232 control interfaces; Control up to 255 Cameras. Unique control code learning function allows customers to modify the control code instructions Any device on the RS485 bus can be individually configured with different protocols and baud rates. All camera parameters can be set through the button operation. Metal shell, silicone key design. LCD display, keypad sound prompt, real-time display decoder and matrix working status. 4D joystick allows variable speed control to cameras Maximum communication distance: 1200M(0.5MM Twisted-Pair Cable)