Teltonika RUT206 Industrial 4G Router w/ Dual SIM, RS232/RS485

Access the RUT206 web interface via its LAN IP. Navigate to Services > Serial > RS485 and configure the baud rate, data bits, parity, and stop bits to match your Modbus RTU device. Then, enable the 'Modbus TCP Gateway' service under Services > Modbus. This creates a TCP server that bridges Modbus TCP requests from your SCADA software to the RS485-connected RTU devices, allowing remote polling and control over the network.

In the RutOS interface, go to Network > Interfaces > Cellular. For each SIM slot, configure the APN and network settings. Then, navigate to Network > Load Balancing > Rules. Here, you can define failover policies (e.g., use SIM2 only if SIM1 loses connection) or mwan3 load balancing rules to distribute traffic across both cellular connections. You can also set metrics and health check targets to automate switching based on link quality and latency.

Yes, the RUT206 supports both IEEE 802.3af Active PoE and Passive PoE. For Passive PoE, you can inject 24V or 48V DC into the Ethernet cable's data pairs. The router's wide 9–57 VDC input range accommodates this. Ensure your Passive PoE injector's voltage is within this range and that the polarity is correct. The router will automatically detect and utilize the power from the Ethernet port, eliminating the need for a separate DC power connection.

Register each RUT206 on the Teltonika Remote Management System (RMS) platform. On the router, enable RMS under Services > RMS. This establishes a secure TLS connection to the cloud. From the RMS web portal or mobile app, you can centrally view status, cellular signal strength, data usage, connected clients, and system logs. You can also push configuration updates, reboot devices remotely, and set up alerts for events like SIM switch, loss of connectivity, or high temperature.