What Is Its Function - Allen-Bradley 1779-KFMR User Manual

What Is Its Function?

Figure 2.2
Rear View of the Removable Frame Assembly
Power
Supply
Board
The 1779-KFM interface functions as a communication interface between
a synchronous RS-422/449 compatible intelligent device (host device) and
other nodes of a Data Highway II link (Figure 2.3).
The power-supply board converts AC power to DC power which the host
board and the MAC board use. The power-supply board accepts either
115V AC or 230V AC. The host board communicates with the host
device. The MAC board communicates with the other nodes of the Data
Highway II link through the coaxial cable medium.
Chapter 2
Introducing the 1779 KFM Interface
Shield
MAC Host
Board Board
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