... 3. Low insertion loss 4. High repeatability ST optical fiber adaptor Fiber optic adaptor is the mechanical device designed to align ... sleeve, that holds the two ferrules together. There are FC, SC, ST, LC, MU, MTRJ, DIN, D4 and hybrid ... Telecommunication Performance parameter Parameter unitFC, LC, SCFC-SC,FC-LCST, MUFC-ST,SC-ST,FC-MUMTRJSMMMSMMMSMMMPCUPCAPCPCPCUPCPCPCUPCPCInsertion loss (typical)dB≤0.3 ...