①FC fiber optic jumper: External reinforce way is to use a metal sleeve, fastening means for the turnbuckle. ODF side in general use. (For use on patch panel Up)

②SC fiber optic jumper: connection GBIC optical modules, its shell is rectangular, a plug pin fastening bolt type, do not need to rotate. (Used on most routers switches)

③ST fiber optic jumper: commonly used in fiber optic patch panels, rounded shell, fastening means for the turnbuckle. (For 10Base-F connections, usually ST type connectors commonly used in optical fiber distribution frame)

④LC fiber optic jumper: Connect the SFP module, which uses easy operation made modular jack (RJ) latch mechanism. (Router common)

⑤MT-RJ fiber optic jumper: transceiver square fiber optic connectors, one pair of fiber transceiver.