Physical Layer
The original physical layer specified was 100Base-X Fast Ethernet (IEEE 802.3). Since the end of 2006, Ethernet Powerlink with Gigabit Ethernet supported a transmission rate ten times higher (1,000 Mbit/s) using somewhat better cable (Cat6). Higher speeds are possible in theory since with standard modules and FPGAs. Repeating hubs instead of switches within the Real-time domain is recommended to minimise delay and jitter. Ethernet Powerlink uses IAONA's Industrial Ethernet Planning and Installation Guide for clean cabling of industrial networks and both industrial Ethernet connectors 8P8C (commonly known as RJ45) and M1 are accepted.
Read more about this topic: Ethernet Powerlink
Famous quotes containing the words physical and/or layer:
“To survive there, you need the ambition of a Latin-American revolutionary, the ego of a grand opera tenor, and the physical stamina of a cow pony.”
—Billie Burke (1885–1970)
“This world is run by people who know how to do things. They know how things work. They are equipped. Up there, there’s a layer of people who run everything. But we—we’re just peasants. We don’t understand what’s going on, and we can’t do anything.”
—Doris Lessing (b. 1919)