synchronous optical network References synchronous optical network Ask Anything Homework Help Also known as: SONET Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: telephone/ Optical-fibre cable…transmission rates known as the synchronous optical network (SONET) or optical carrier (OC) in the United States and as the synchronous digital hierarchy (SDH) elsewhere, as shown in the table. Read More…transmission rates known as the synchronous optical network (SONET) or optical carrier (OC) in the United States and as the synchronous digital hierarchy (SDH) elsewhere, as shown in the table. Read More