Fiber optic receptacle and plug assemblies with alignment and keying features

A fiber optic receptacle and plug assembly, comprising:

• a fiber optic receptacle adapted to be mounted within an opening formed through a wall of a connection terminal, the receptacle comprising:
• a receptacle housing defining an internal cavity opening through opposed first and second ends, the housing comprising an alignment and keying feature and a shoulder operable for securing the receptacle against an inner surface of the wall of the connection terminal;
• and
• a ferrule retainer for retaining at least one receptacle ferrule within the internal cavity of the housing;
• and
• a fiber optic plug adapted to be mated with the receptacle, the plug comprising;
• a plug inner housing;
• a plug outer housing disposed about the inner housing and defining a first complimentary alignment and keying feature for engaging the alignment and keying feature of the receptacle when the plug is mated with the receptacle;
• and
• an alignment sleeve operable for retaining at least one plug ferrule within the plug outer housing, the alignment sleeve defining a second complimentary alignment and keying feature for engaging the alignment and keying feature of the receptacle when the plug is mated with the receptacle.