Monitor module for a fiber optic monitoring system

A monitor module that is used to detect optical test signals traveling through optical fibers in an optical fiber network. The monitor module is sized to be received within the monitor shelf of a fiber administration system. The monitor module contains an optical detector that detects an incoming optical signal and converts that signal into a corresponding electronic signal. The electronic signal is then amplified, linearized and read by a microprocessor. The signal is then forwarded to an external shelf controller, wherein the signal is used to determine the optical performance of the optical fibers that are connected to the monitor module.