More about this below. Industrial grade connectors will be necessary for many applications. Cheap plastic Telephone Connectors don t cut it on the plant floor, and the RJ45 connectors aren t up to the task. An industrial strength connector will be a great benefit. Many users desire 24 Volt power on the Bus.
Some applications require determinism.
However, methods exist for architecting deterministic Ethernet systems. Note that, in reality, most people who think they need determinism really just need speed. Ethernet Doesn t Guarantee Interoperability Ethernet is just a physical layer standard, in much the same way an RS232, or for that matter, a telephone line, is. Having a physical connection means that messages can be transmitted, but it does not assure successful communication. When you download a file from the web, you can see the speed of the transmission speed up and slow down as network traffic levels change.