Complex sentence: Transceivers are called Medium Attachment Units (MAUs) in IEEE 802.3 documents, which were widely used in 10base2 and 10base5 Ethernet networks.
Split into simpler sentences: Transceivers are called Medium Attachment Units (MAUs) in IEEE 802.3 documents. Transceivers known as Medium Attachment Units were widely used in 10base2 and 10base5 Ethernet networks.