ABB AC 800F

4 Cabling the AC 800F
4-54
4.2.12 Coupling cable segments via repeaters
For some applications more than one cable segment is needed. In these cases, cable
segments can be coupled via repeaters. This is especially required if existing
networks are expanded at a later time.
Figure 4-31 shows how to couple two 10Base5 cable segments via a repeater.
Fig. 4-31 Coupling via a repeater
The repeater is connected via an AUI transceiver and an AUI cable.
Two segment types are distinguished here:
Coax segments: Cable segments with nodes
Link segments: Cable segments without nodes
The maximum transmission path between two nodes is limited to 5 segments. Note
that only three of these can be coax segments. At least two of them must be link
segments.