Higher bandwidth (extremely high data transfer rate). Lower transmitter launching power. Less susceptible to electromagnetic interference. Flexible use in mechanical and medical imaging systems. Optical Signal-to-Noise Ratio (OSNR) is a critical performance metric in fiber optic networks, serving as a strong indicator of signal quality. Essentially, OSNR measures the power ratio between the optical signal and the background noise across the communication channel, expressed in decibels. Discover the latest developments in fiber-optic communications with the newest edition of this leading textbook In the newly revised fifth edition of Fiber-Optic Communication Systems, accomplished researcher and author, Dr. Agrawal, delivers brand-new updates and developments in the. Fiber can be deployed all the way to the premises (FTTB – Fiber to the Building, FTTH – Fiber to the Home), where Ethernet or coaxial cables are used for the final connection. 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. Some of the results conformed with the defined whereas others did not because of.