ABB AC 800F

4 Cabling the AC 800F
4-16
Applications:
• Networks within one building or between buildings
• Installations with high EMI
• Network cables close to power cables
• Areas with high potential differences
• Large installations
• Installations where a protective separation by the network is required
• Cables in narrow cable ducts (fiber optic cables are relatively thin)
• Installations with redundant cabling
The appropriate network concentrator modules also provide adapters to other
transmission media e.g. 10BaseT (4-wire twisted pair cable), 10Base5 or 10Base2.
Larger networks can be achieved by coupling several segments via repeaters.
However, the maximum possible number of repeaters is limited, see Sections 4.2.11
and 4.2.12.
For details on the Ethernet refer to:
• DIN ISO 8802, Part 3 corresponding to ISO 8802-3 and
ANSI/IEEE 802.3, Beuth-Verlag Berlin. Mainly describes the bus
access and is not useful as an introduction.