Download Black Box IC109A-R2 Specifications

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Connecting your Controller
Redundant Communication Architecture
If you require redundant communications, you must have two separate network
adapters (NA card) on both the server and the controller which are connected to
separate Ethernet subnets. This architecture is not presently supported in the
controllers.
Figure 8 Redundant Universal Modbus TCP Network Architecture
Server
NA card NA card
LAN/WAN #1
LAN/WAN #2
NA card NA card
Controller
Honeywell Universal Modbus Interface Reference
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