Day: October 14, 2025

What Is a Fiber Loopback Module and How Does It Work?

1. Introduction In modern optical communication systems, ensuring the reliability and stability of network devices is critical. From hyperscale data centers powering cloud services to telecom operators managing nationwide FTTH deployments, every device port must be tested before carrying real user traffic. This is where the fiber loopback module comes in. A fiber loopback module is a compact […]