What is established by normalized reference traces taken at a fiber-node test point?

The establishment of baseline sweep responses for balancing amplifiers is crucial in ensuring optimal performance within a fiber-optic communication system. Normalized reference traces taken at a fiber-node test point serve as a benchmark for how signals should behave in an ideal condition. These baseline responses reflect the expected behavior of the system under normal circumstances, allowing technicians to identify any deviations that might indicate issues with the amplifiers, such as improper balancing or potential failures.

Creating these baselines is important because it enables the maintenance team to troubleshoot effectively. If the measured responses deviate significantly from the established baseline, it suggests that there may be problems affecting signal quality. Such deviations can be crucial in maintaining the integrity and reliability of communication systems, ensuring they operate within designated parameters.

While the other options relate to different aspects of signal monitoring and maintenance, they do not specifically address the role of normalized reference traces in establishing baseline performance for balancing amplifiers. The emphasis here is on ensuring that signals maintain the appropriate levels and characteristics required for effective data transmission.