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Reference Manual
00809-0200-4420, Rev HB
Section 5: Host Integration
January 2015
Host Integration
Figure 5-2. Fiber Optic LAN Architecture
RS-485 (serial)
An RS-485 connection supports Modbus RTU protocol. Using this connection type, the Gateway
is wired to an RS-485 bus which typically leads to a serial I/O card or Modbus I/O card (see
Figure 5-3). Up to 31 Gateways can be connected to a single I/O card in this manner.
A. Engineering Station
B. Primary Control Network
C. Secondary Control Network
D.Controller and I/O
E.Fiber Optic Switch
F. Fiber Optic
G. Copper to Fiber Converter
H. Smart Wireless Gateway
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