Plug-in optical connector with wrong plugging prevention key

摘要

A plug-in optical connector consists of a pair of optical connectors (1, 2) fixed on a pair of boards (3, 4), respectively. At least one (1) of the optical connectors (1, 2) is provided with a wrong plugging prevention key (5a) while the other optical connector (2) is provided with a wrong plugging prevention key (5b).