In summary, PON architectures raise the need for PON-specific test methods
that differ from conventional optical test methods, to characterize the param-
eters of their subsystems and modules.
7.3 METHODS FOR CHARACTERIZATION,
DIAGNOSIS, AND MONITORING
In this section, we will discuss the required testing and characterization
during the PON installation, equipment testing, troubleshooting, and diagnosis
guidelines in case of any traffic problems, and a few examples of in-service
performance monitoring to ensure the quality of service (QoS) to end users.
The readers can find more in-depth discussions in related literatures such as
[6, 7].
7.3.1 Required Physical-Layer Measurement
The three main optical tests to be performed during a PON installation are: ...