IP67 LC Duplex Fiber Optic Connectors Amphenol CONEC IP67 LC Duplex Fiber Optic Connectors feature a 1/6th turn bayonet coupling for a fast and secure mate/unmate. To optimize chemical resistance, UV resistance, and tolerance to physical abuse, the connectors are offered in two housing materials: black plastic and nickel-plated zinc die-cast. The product line includes panel-mounted receptacles, mating plugs, and protective caps in single-mode, multi-mode, and APC types. Pre-terminated jumper cables, including cables suitable for outdoor use and direct burial, in standard lengths from 1 meter to 300 meters, are also included.