Fiber patch cables are primarily classified into two categories based on the type of optical fiber used: Single Mode Fiber (SMF) and Multimode Fiber (MMF). Among them, SMF is typically OS2, while MMF includes OM1, OM2, OM3, OM4, and OM5. It is mainly used in applications such as optical fiber communication systems, optical fiber access networks, optical fiber data transmission networks. Fiber optic patch cord refers to the connecting cables used to connect fiber optic equipment in fiber optic communication systems. This is known as interconnect-style cabling. Understanding the various technical.