Abstract: A passive optical network (“PON”) integrated tool may be a single device with which to (i) test and measure optical power levels on active fiber links that transfer signaling between PON devices without interfering with the signaling, (ii) test and measure reflectance and signal loss on inactive fiber links on which there is no signaling, (iii) illuminate fiber with visible light for visual integrity verification, and/or (iv) inspect fiber optic cable connectors for minute abnormalities. The PON integrated tool may include pass-through connection adapters with a tap to provide signaling from connected fiber to one or more detectors that measure signaling characteristics at different wavelengths for different PON channels. The PON integrated tool may include other connection adapters for fiber inspection, emission of visible laser light, and/or emission of pulses of light to the connected fiber in order to measure reflectance and signal loss.