For Multimode fiber, use Multimode SFPs and patch cables. When troubleshooting fiber installations, it's essential to identify the type of fiber you're working with and ensure compatibility across all. What is a Fiber Patch Cable? A fiber patch cable is a fiber optic cable with connectors on both ends. It is designed for flexible, short-distance connections within networks. They are also called fiber jumpers. Here. SM patch cords are mainly used in telecoms, long-haul networking, and FBTH systems. Typically, fiber cables will also be marked with OM1, OM3, OM4, or OM5, which represent different types of multimode fiber with varying performance characteristics. These connectors allow quick connection between optical equipment such as switches, patch panels, optical transceivers, and distribution boxes.