ST Optical Patch Cord 1, Low insertion loss 2, High return loss 3, Easy to operate 4, Good in exchange ST optical patch cord ST fiber ... Medical Specification ParameterUnitStandard & Requirement PC(SM)UPC(SM)APC(SM)PC(MM)Insertion Loss (Typical)dB≤0.3≤0.2≤0.2≤0.3Return ... ” means two cores5, Cable Diameter: 3.0mm, 2.0mm, 0.9mm6, Length:1, 2, 3 meter or customized7, Cable type: PVC, LSZH, OM3, OFNR, OFNP ...