... the sequence of connectionPTZ(P/L & Zoom) Control: Control the status of P/L, zoom in/out the camera, adjust the aperture ... /Manual ranging, 0.1mV resolutionAC/DC Current6.6mA, 66mA, 660mA, 10A Manual rangingResistor660, 6.6K, 66K, 660K, 6.6M, 66MΩ auto ...