🌐EnglishEnglishFrançaisPortuguêsفارسی中文日本語EntityQ7098828· pop 5· linked from 12 articlesOptical attenuatordevice used to reduce the power level of an optical signalAvailable in 5 languages中文PortuguêsHebrewفارسیvia Wikidata sitelinks · CC0ConnectionspowerEntityoptical fiberEntityCategoriesFiber opticsMeasuring instrumentsOptical componentsTelecommunications equipment