It connects optical devices, such as transceivers to patch panels, ODFs to switches, or ONTs to FTTH boxes. LC: smaller, higher density, preferred in data centers and modern. This guide will help you quickly understand the main types of fiber patch cords and how to choose the right solution for your project – and how ZION can support you with stable quality, flexible customization and global supply. What Is a Fiber Optic Patch Cord? A fiber optic patch cord (fiber. Fiber optic patch cords, also known as fiber optic patch cables or fiber jumpers, are indispensable components in modern optical networks. They come in various types, each tailored for specific applications and requirements.