Coupling for optical-fiber connectors

A coupling arrangement comprising:

• a coupling housing configured to accommodate a first plug-in connector at a first end of the coupling housing and a second plug-in connector at a second, opposite end of the coupling housing, each plug-in connector including a ferrule through which light can be emitted;
• and
• a first connection piece configured to couple to the second end of the coupling housing, the first connection piece having an inner surface from which a first portion of a covering curves upwardly in a first position and along which a second portion of the covering extends from a first distal end to a second distal end to secure the covering to the first connection piece, the second portion of the covering being planar from the first distal end to the second distal end, the first portion of the covering being moveable from the first position, in which the first portion inhibits light emitted from the first plug-in connector from reaching the second end of the coupling housing, to a second position, in which the first portion of the covering does not inhibit light emitted from the first plug-in connector from reaching the second end of the coupling housing, the second portion of the covering including a first reduced width planar section coupling a first tab to the first portion of the covering, and the second portion of the covering including a second reduced width planar section coupling a second tab to the first portion of the covering.

A connection piece for coupling to a coupling housing, the coupling housing configured to accommodate a first plug-in connector at a first end of the coupling housing and to accommodate a second plug-in connector at a second, opposite end of the coupling housing, the connection piece comprising:

• a body including two spaced-apart sides interconnected by a base, the base having an inner surface and an opposite outer surface, the body defining an open front and an open rear, the open rear of the body being configured to couple to a first end of the coupling housing;
• a covering coupled to the body, the covering being configured to inhibit light emitted from the second plug-in connector from exiting the adapter when the covering is arranged in a first position, the covering being configured to enable optical communication between the second plug-in connector and the first plug-in connector when the covering is arranged in a second position;
• and
• first and second wings extending from the covering, the first and second wings being coupled to the inner surface of the body, the first wing extending from the covering along the inner surface of the body to a first of the spaced-apart sides, the second wing extending from the covering along the inner surface of the body to a second of the spaced apart sides, the first and second wings including tabs coupled to the swing by reduced-width extensions, wherein the first and second wings are coplanar with the tabs and reduced-width extensions.