Reading device for subscriber identity module card has 2 of contact springs projecting through opening in electrical screening respectively connected to earth and used for short-circuiting electrical field

摘要

The reading device has an electrical screening (2) enclosing its inner functional components (1), provided with an opening (4) for passage of the contact springs (3) of the reading device, one contact spring (5) connected to earth and a second contact spring (6) used for short-circuiting the electrical field in the vicinity of the opening in the electrical screening.