A connector includes a housing having a contact receiving passageway extending through a mating end of the housing in a longitudinal direction and a contact disposed in the contact receiving passageway. The housing has a window extending through a wall of the housing in a direction perpendicular to the longitudinal direction. The contact has a mating section disposed at the mating end and a contact section extending from the mating section. An exposed portion of the contact section is exposed to an area exterior of the housing through the window.