Common types of Fiber Optic Connectors

FC / PC Used on single mode fiber (metal, keyed screw type)	ST / PC Used on Multi mode fiber (metal, keyed, bayonet type)
LC Used on Multi & Single mode fiber (plastic, square)	SC Used on Multi & Single mode fiber (plastic, square)
SMA (now Obsolete) used for multimode fiber (metal, non-keyed, screw type)
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