An inlet guide for facilitating distribution of optical fibers into at least one duct is provided. The contact lens mold sections include two optical quality surfaces, a flange circumscribing at least a portion of the two optical quality surfaces, and an elongate member extending from the flange. Detector lock arms slide in contact with interfering portions of the male housing and deform if the detector is pushed towards the locking position when the housings are connected. The device can be used to clean the moisture from an instrument without disassembling it.