... 24AWG cable,DC12V 1A PTZ 3D Control Keyboard HK-K03Function and Character:Control high speed dome camera and PTZ, it is ... Interface in surveillant system, can be used as main keyboard or branch keyboardSpecification:LCD display, as man-machine Interface, ... by joystickKeyboard lock function can prevent unapproved user operating the keyboard, more security.provide RS485 control output signal and standard ...