🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaالعربيةفارسی한국어中文日本語EntityQ51823· pop 22· linked from 241 articlessynchronous optical networkingAlso known as SONETstandardized protocol that transfers multiple digital bit streams synchronously over optical fiberAvailable in 22 languagesEspañolFrançaisDeutsch中文日本語PortuguêsItalianoالعربيةAzerbaijaniBasqueCatalanConnectionsOSI modelEntitypulse-code modulationEntityCategoriesFiber-optic communicationsITU-T G Series RecommendationsITU-T recommendationsNetwork protocolsSynchronous optical networking