DS EN 3733-105:2008 Aerospace Series - Connector, Optical, Circular, Single Channel, Coupled By Self-Locking Ring, Operating Temperature Up To 150 Degrees C Continuous - Part 105: Receptacle Connector Dummy Two Holes Fixing - Product Standard Defines the characteristics of receptacle connector dummy two holes fixing for single channel fibre optic plug connectors, operating temperature up to 150 degrees C.