If you are using a PTZ camera without a DVR with PTZ controls, then you will need this PTZ control Board.
FEATURES: LCD display, control keys, joystick, can control up to 128 speed domes or decoders, full lens and speed control or comeras, manual or automatic control.
SPECIFICATIONS:
Power: DC 12v
Connection: RS-485
Range: 1500M (0.5MM twisted pair)
Size: 7.9"L x 6.6"W x 1.8"H