IEC 61300-1:2022 provides general information and guidance for the basic test and measurement procedures defined in IEC 61300-2 (all parts) and IEC 61300-3 (all parts) for interconnecting devices, passive components, mechanical splices, fusion splice protectors, fibre management. IEC 61300-1:2022 provides general information and guidance for the basic test and measurement procedures defined in IEC 61300-2 (all parts) and IEC 61300-3 (all parts) for interconnecting devices, passive components, mechanical splices, fusion splice protectors, fibre management. The Passive Optical Network (PON) is the indispensable foundation for delivering ubiquitous, multi-gigabit broadband connectivity, a necessity for modern economies and residential life. However, it is not always easy to find out what has been covered, and where it can be found. 6 Tb/s and beyond, the electrical signaling losses between the ASIC and the optical module consume an increasing fraction of total system power and constrain the practical density of switch systems. Co-Packaged Optics (CPO) addresses this by. GPON replaces the traditional three-tier Ethernet design with a two-tier optic network which eliminates access and distribution Ethernet switches with passive optical devices. Cisco introduces GPON with the Catalyst GPON platform. Optical Distribution Network (ODN) - The physical fibre and optical. This document focuses on decibels (dB), decibels per milliwatt (dBm), attenuation and measurements, and provides an introduction to optical fibers. There are no specific requirements for this document.