自动化手册-菲尼克斯电气工业以太网关键术语.pdfVIP

Industrial Ethernet Quick and simple explanation of key terms Industrial Ethernet The use of industrial ethernet communication offers many advantages and is becoming more common in the automation of production plants and machinery. Many new technical terms from the iT world are also being used in this context among industrial users. in this glossary, we have listed and explained the main techni- cal terms from the field of industrial ethernet – we make ethernet easy. 2 Phoenix ConTACT Table of contents Glossary Pages 04 – 45 IEEE standards Pages 46 – 47 Phoenix ConTACT 3 Industrial Ethernet 10Base-T Standard for data transmission of 10 Mbps ethernet using unshielded twisted pair cables (Category 3, 4 or 5). 100Base-FX Standard for data transmission of 100 Mbps ethernet using fiber optic cables. 100Base-TX Standard for data transmission of 100 Mbps ethernet using twisted pair cables (Category 5). each connection is established via two wire pairs, one wire pair for “transmit data” and the other for “receive data”. 100Base-T Fast ethernet; 100Base-T has been officially elevated to an ieee standard as iTU 802.3u. This standard is essentially based on technologies for 10Base-T, the ethernet version for twisted pair cables. There are several versions of 100Base-T, which differ with respect to the physical layer and therefore the transmission media: 100Base-Tx, 100Base-T2, 100Base-T4, and 100Base-Fx. With this method, the MAC level and therefore the conventional