Wire Type Unshielded Twisted Pair: 24-16 AWG Category Type : 5or better Impedance: 100 ohms DC Loop Resistance : 52 ohms per 1,000 ft Differential Capacitance : 19pF/ft max 闭路电视专用 (产品规格与参数定期维护,如有改变恕不另行通知) 图片只供参考.