The optical light source is equipped with 2.5mm FC, SC connector, and the FC connector is installed by default. If you need to connect the LC port, you can realize the connection with the help of a FC male to LC female multimode fiber adapter or FC male to LC female single mode fiber adapter to convert. If you need to realize the connection of SC to LC, you need to change the FC connector to SC connector type; then SC male to LC female fiber adapter is recommended for this connection. by *** on 11/29/2001