Configuring EIA-485 User Guide Configuring EIA 485 Common Mistakes Configuring EIA-485 for Modbus and BACnet Monitor. Integrate. Alert. Peace of Mind. EIA-485 (formerly known as RS-485 or RS485) is a specification for the physical layer of a network that uses the difference in voltages between 2 wires. Simply, if one wire is high (digital 1) …
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