... 4. High repeatability ST optical fiber adaptor Fiber optic adaptor is the mechanical device designed to align fiber-optic connectors. It contains ... the interconnect sleeve, that holds the two ferrules together. There are FC, SC, ST, LC ... unitFC, LC, SCFC-SC,FC-LCST, MUFC-ST,SC-ST,FC-MUMTRJSMMMSMMMSMMMPCUPCAPCPCPCUPCPCPCUPCPCInsertion loss (typical)dB≤0.3≤0. ...