The short answer is no - RJ45 connectors are designed for electrical Ethernet signals, while fiber optics transmit light pulses through glass or plastic. However, modern networks often combine both technologies. This comprehensive guide will explore the importance and benefits of this integration, provide an understanding of fiber optic cable and Ethernet ports, discuss their compatibility, and offer a step-by-step process for connecting them. Once you understand the basic concepts, you can check out my Recommended Equipment section toward the bottom of the. Sorry to double check this, but am I right in thinking that these can both run in the same conduit, because fiber/fibre doesn't emit an electrical fields Sorry for the simpleness of the question, I'm going to be running the cable soon and would prefer not to have to re-do it! Cheers in advance. Fiber optic cables and Ethernet cables are two of the most important data transfer cable standards there are, but with their use cases often crossing paths, and colloquialisms even meaning each name is used interchangeably at times, it's important to know the differences with Fiber Optic Cables vs. Running electrical and data cables in the same conduit might seem like a tidy, cost-effective idea but it often leads to signal interference, compliance issues, and expensive headaches down the line.