During which phase of a project should a link loss budget be completed for cable plant installation?

Completing a link loss budget during the design phase of a project is critical because this document serves as a guideline that assesses the maximum acceptable loss that a fiber optic link can tolerate while still ensuring optimal performance.

In the design phase, the specifications for the fiber optic system, including the type and length of cables, connectors, splices, as well as the optical powers at both ends of the link, are established. By calculating the link loss budget at this stage, engineers can determine if the chosen components will meet the performance criteria and ensure the system will function effectively after installation.

Addressing potential losses before installation helps in making informed decisions regarding component selection and layout, as well as ensuring the infrastructure is designed to minimize losses from the outset. This proactive approach can significantly reduce the likelihood of problems arising in later phases, such as during testing or maintenance, where unexpected losses could lead to performance issues.