ABB AC 800F

4 Cabling the AC 800F
4-53
4.2.11 Mixed networks
In some cases, mixed networks are an economical alternative to pure fiber optics
networks. Modules for the connection of 10Base2 and 10Base5 segments are
available for the network concentrator. Direct connection of AUI cables is also
possible. Figure 4-30 shows an example for a mixed network:
Fig. 4-30 Mixed network
Two 10BaseFL cables (fiber optic cables) link the AC 800F with the network
concentrator. The fiber optic cables can be used for long distances and in
environments with high EMI.
The network concentrator is installed near the two operator stations, which are
connected via a 10Base2 segment, as this is only a short distance link in a low-EMI
environment. Make sure that the AUI and 10Base2 cable shields are grounded
properly.
Both the 10Base5 and the 10Base2 segments can be connected via a 10Base5
module in the network concentrator using adapter.