A conventional electrical signal in a copper cable is disrupted by electromagnetic interference. In contrast, optical fiber cables provide better protection against disturbances and are also more secure against eavesdropping. Additionally, the low attenuation of optical cables allows for long-distance transmission. The LC connector is a high-performance fiber optic connector for singlemode and multimode applications, featuring an insertion loss of only 0.1 dB and a return loss of 55 dB. The design of the LC connector is based on a single-fiber ceramic ferrule with a diameter of 1.25 millimeters for a fiber optic cable. The OS designation for a fiber optic cable defines the quality class of a singlemode fiber optic cable. The classification distinguishes between two classes (OS1 and OS2), based on the level of optical attenuation and the possible transmission rate and distance.