技术在快速发展进步。因此，我们建立了易于使用的术语汇编，帮助您更好地了解影响您业务的术语、技术和趋势。
The total calculated power loss in an optical link or span. Calculation is derived from the sum of all losses including fiber attenuation, splices, components and connections plus a margin of error. Measured in total dB.
