Abstract: A module assembly (1) for fibre-optic distribution, which is mounted along a mounting direction in a slot (11) defined in a carrier unit (2), with a centre region (M) through which a centre axis (A) oriented in the mounting direction (x) runs. Two side regions (S), each of which is positioned opposite the other relative to the centre axis (A) each have a side wall (20.1). At least one of the side walls (20.1) has in certain sections along the centre axis (A), a curvy and/or multi-step profile that changes a distance (d) from the centre axis (A) such that the at least one side wall (20.1) forms at least one protrusion or setback portion (23, 24, SP) for form-fitting mounting a module assembly (1) in the slot (11) defined in the carrier unit (2).

Abstract: An optical assembly comprises a first optical transmission cable comprising first connectors being of a first type, and a second optical transmission cable comprising second connectors being of a second type. The first optical transmission cable comprises ends respectively being terminated with one of said first connectors. The second optical transmission cable comprises ends respectively being terminated with one of said second connectors. Connectors of different types are configured to be connected with each other. The second connectors are respectively configured to be connected to an optical transceiver unit.