Allen-Bradley 1779-KFMR User Manual page 14

In each case, the device is the host for the interface. A host device is a
node on one end of its host/interface link, and its interface to the Data
Highway II link is a node on the other end of the host/interface link.
However, to the other nodes of the Data Highway II link, the host device
and its interface, combined, are accessed as a single node of the Data
Highway II link.
Figure 2.5
A Data Highway II Network with Two Data Highway II Links
Computer
RS 422/449 Link
4,000 Cable Feet Max.
1779 KFM
Interface
Data Highway II Link
Bridge
1779 KP3
Interface
PLC 3
Processor
Chapter 2
Introducing the 1779 KFM Interface
8200
CNC
8200 KDHW
Interface
RS 422 Link
4,000 Cable Feet Max.
1779 KFL
Interface
1779 KP2
Interface
PLC 2/15
Processor
Dumb
Terminal
RS 232 C Link
50 Cable Feet Max.
Data Highway II Link
1779 KP2
Interface
PLC 2/30
Processor
13291
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