What is the longest fiber optic cable in a parent-child router

OM1 fiber optic is the basic version of multi-mode cable, being able to maintain 1GB data speeds for up to 300 meters. In the design of any network—whether a home Wi-Fi setup, an office backbone, or a global telecom infrastructure—the maximum length of network cables is a make-or-break factor. Exceeding a cable's length limit leads to signal attenuation (loss), reduced bandwidth, and unreliable connectivity. They can connect routers, switches, firewalls and more network devices. The network cable is transmitting network signals. For most enterprise or data center applications using multimode fiber, the practical limit sits between 300 m and 550 m.