Fiber optic adapter

A fiber optic adapter comprising:

• a main body unit including
• a casing body that defines an insertion channel extending along a front-rear direction,
• two engagement members that extend from said casing body along the front-rear direction, and
• two fastener members that extend from said casing body along the front-rear direction opposite to said engagement members;
• and
• a shielding unit including
• a shielding casing that is removably connected to said casing body and that defines a through channel, said engagement members extending through said through channel, and
• a shielding mechanism that has
• a pivot shaft engaging said shielding casing and facing said through channel,
• a restoring member sleeved on said pivot shaft, and
• a shielding plate pivotally connected to said pivot shaft, said restoring member having opposite ends that abut respectively and resiliently against said shielding casing and said shielding plate, said shielding plate being pivotable about said pivot shaft against a resilient force of said restoring member from a shielding position to an open position relative to said shielding casing;
• wherein, when said shielding plate is in the shielding position, said shielding plate is disposed between said engagement members, is substantially perpendicular to the front-rear direction, and shields said through channel;
• and
• wherein, when said shielding plate is in the open position, said shielding plate is substantially parallel with the front-rear direction and opens said through channel.