Metrics such as SNR, BER, WDM efficiency, latency, OSNR, and dispersion management play critical roles in determining the overall performance of these systems. Fiber optic networks represent a cornerstone of modern communication systems, renowned for their high-speed data transmission capabilities and reliability. Fundamentally, a fiber optic network comprises of strands of glass or plastic fibers, encased within a protective sheath, that transmit light. Signal-to-noise ratio is a critical metric in optical communication systems. It is the measure of signal power to noise power and is expressed in decibels (dB). This note also provides background information on system link configurations, test equipment and system component considerations that influence. This paper presents how different tests of throughput and latency were carried out using Viavi test kit, analyzed and then after compared the obtained results with the standard defined by IEEE and ITU for conformity. In this comprehensive guide, we will explore the definition, importance, and evolution of. While we will work with your team to define and document the right metrics, below are some typical FTTH metrics that we snapshot and journalize for reporting: In addition to high quality data and journalized monthly operating metrics delivered in Excel or other spreadsheets, we generate pdf.