I-Box (side-by-side) consisting of 2 areas separated from each other, left compartment prepared for installing structured wiring components on a microperforated mounting plate, right compartment prepared for installing modular installation devices on a DIN-rail, incl. pre-installed two-gang socket outlet with enhanced protection against contact (tamper-resistant), both areas can be accessed separately, sheet steel doors with and without plastic insert for improved signal transmission (radio link)