OPTICAL NETWORK ANALYSIS OptoSci's ED-NET kit enables students to investigate the fundamental characteristics of optical time domain reflectometry using a commercial OTDR unit and observe how these principles are applied in practice to examine the response of optical fibre links, fibre optic components and optical fibre networks. The experimental investigation addresses: Fundamental properties and operation of OTDRs (dead zone, distance and spatial resolution, dynamic range etc.) Event identification and location Line and component loss measurements Network components and their characterisation at 1310nm and 1550nm Multi-branch and Wavelength division multiplexed (WDM) networks Fault location and analysis