7.2.2.3 RS485 link configuration for 4 wires connexion

Set the SA2 switches like below:

Set the SA1 switches to select the four wires configuration with no termination:

Network Management Card – User Manual

34003991EN/EB

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Eaton Electrical 34003991EN/EB user manual 2.3 RS485 link configuration for 4 wires connexion