US Patent 7241157 Modular jack with a detective switch

A modular jack (100) includes an insulative housing (1) defining a receiving cavity (151) for receiving a complementary connector, a contact module (2), a detective switch (3) and an outer metal shield (4) enclosing the housing. The detective switch includes an immovable switch (31) and a movable switch (32) abutting against the immovable switch. The immovable and movable switches respectively include an engaging portion (311, 3212) and a soldering portion (313, 323) for electrically connecting with a printed circuit board. The movable switch further includes a projecting portion (3211) for engaging with the complementary connector.