Teltonika RUT906 4G LTE Industrial Router

Teltonika RUT906 (RUT906000200) – 4G Industrial Router with RS232, RS485 and GNSS

The Teltonika RUT906 (RUT906000200) is a 4G LTE Cat 4 industrial router with dual SIM, RS232, RS485, GNSS, and extended I/O. It is the serial-interface member of the RUT series. The RUT906 connects PLCs, RTUs, meters, and other serial equipment to cellular networks. RutOS brings a full industrial protocol stack on top. UK stock, next day delivery.

Two features set the RUT906 apart from other routers in the RUT range. First, it carries both RS232 (DB9) and RS485 (6-pin industrial socket), giving direct connections to legacy hardware without adapters or converters. Second, it includes a GNSS receiver for GPS location tracking, NTRIP correction data, and geofencing. An analog input (0-24 V, 4-20 mA capable) and SPST relay output add sensor monitoring and local switching in one device.

Key Features

• 4G LTE Cat 4 – 150 Mbps download / 50 Mbps upload via Mediatek modem
• Dual SIM (2x Mini SIM 2FF) with auto-failover across seven configurable trigger conditions
• RS232 – DB9 connector, RTS/CTS flow control, 300 to 115200 baud
• RS485 – full duplex (4-wire) and half-duplex (2-wire), 300 to 230400 baud, 6-pin industrial socket
• GNSS – GPS, NMEA 0183, NTRIP, geofencing, AVL server support (TAVL, RMS)
• 4x Ethernet RJ45 (1x WAN, 3x LAN), 10/100 Mbps with auto MDI/MDIX
• Wi-Fi 4 (802.11b/g/n, 2.4 GHz) – Access Point and Station modes, up to 100 simultaneous clients
• I/O: analog input (0-24 V / 4-20 mA), galvanically isolated digital input (0-30 V), dry contact input, SPST relay output (40 V / 4 A), open collector output
• Industrial protocols: Modbus RTU/TCP, BACnet (RS485/TCP), DNP3, OPC UA, DLMS/COSEM, MQTT Broker/Publisher, Data to Server
• VPN: OpenVPN (27 encryption methods), IPsec IKEv1/IKEv2, WireGuard, ZeroTier, GRE, PPTP, L2TP, Stunnel, DMVPN, SSTP, Tinc
• USB 2.0 host port – Samba share, USB-to-serial, external modem or storage
• Micro SD card slot (internal, up to 2 TB)
• Teltonika RMS remote management and FOTA firmware update
• Operating temperature -40 to +75 °C, IP30, aluminium housing, DIN rail and wall mount ready (kit sold separately)

Applications

Utility Meter Reading over Cellular

The RUT906 supports DLMS/COSEM over RS232, RS485, and TCP, the standard protocol for utility meter data exchange. It connects directly to electricity, gas, and water meters via RS485. Data is then forwarded to a head-end system over 4G LTE using MQTT, HTTP(S), or Azure. The dual SIM provides continuity if the primary carrier fails.

Building Automation and BACnet

BACnet is the primary protocol in HVAC, lighting control, and access control systems. The RUT906 runs as a BACnet router over RS485 and TCP. It bridges legacy BACnet MS/TP devices on RS485 to IP-based building management systems. This is used in energy monitoring for commercial buildings, cold storage facilities, and NHS sites with existing BACnet infrastructure.

SCADA and Modbus RTU Telemetry

The RS232 and RS485 ports support Modbus RTU Master and Slave. The RUT906 polls field devices such as PLCs, inverters, and pump controllers. Data is then forwarded to SCADA platforms via Modbus TCP or MQTT. Custom register mapping covers integration with non-standard equipment. For inbound access to the SCADA interface, a fixed IP SIM removes the carrier-grade NAT barrier.

GPS Tracking and NTRIP Applications

The GNSS module outputs NMEA 0183 sentences and supports NTRIP, the protocol for delivering differential GPS correction data over IP. This is used in precision agriculture machinery, survey equipment, and infrastructure monitoring where standard GPS accuracy is insufficient. The RUT906 forwards location data to TAVL or RMS server software. Geofencing zones can trigger I/O events or SMS alerts.

Remote Infrastructure Monitoring with Analogue Sensors

The analog input accepts 0-24 V signals and supports 4-20 mA current loop sensors directly. This covers pressure transducers, temperature sensors, flow meters, and level sensors common in water treatment, pumping stations, and substations. Input values are forwarded to a cloud platform via MQTT or Data to Server. The SPST relay output can control local equipment based on configurable thresholds.

Cellular Failover with Serial Pass-Through

Sites with fixed-line broadband and serial equipment use the RUT906 to handle both requirements in one device. The WAN port takes the primary broadband connection. On failure, the RUT906 switches automatically to 4G LTE. Serial devices on RS232 or RS485 remain accessible throughout via Serial over IP. This avoids deploying a separate router and serial server in the same cabinet.

Frequently Asked Questions

What serial interfaces does the RUT906 support?

The RUT906 has one RS232 port (DB9 connector, RTS/CTS flow control, 300-115200 baud) and one RS485 port (6-pin industrial socket, full duplex and half-duplex, 300-230400 baud). Both support Modbus RTU, DNP3, DLMS/COSEM, and Serial over IP. The RS485 port also supports BACnet MS/TP. The DB9 connector fits most legacy industrial equipment without a cable adaptor.

What is Teltonika RMS and is the RUT906 compatible?

Teltonika RMS is a cloud platform for remote monitoring, configuration, and firmware updates across Teltonika devices. The RUT906 is fully RMS-compatible. RMS provides remote WebUI access, FOTA, and event-based alerts. See the Teltonika RMS explainer for more detail. RMS credits are sold separately.

Does the RUT906000200 support eSIM?

No. The RUT906000200 is the standard UK PSU variant and uses physical Mini SIM (2FF) cards only. eSIM is available on the RUT906 03***** variant (order code RUT906030200 for UK PSU). Call 0300 124 6181 to confirm eSIM stock. For an overview of eSIM-capable routers, see the eSIM routers guide.

What GNSS systems does the RUT906 support?

GPS is confirmed. GLONASS, BeiDou, Galileo, and QZSS are listed in Teltonika’s documentation as under development. Before specifying the RUT906 for multi-constellation applications, check the firmware release notes on the Teltonika wiki for current status. NMEA 0183 output, NTRIP, geofencing, and AVL forwarding to TAVL or RMS are all available with GPS.

What SIM card do I need for the RUT906?

Both SIM slots take Mini SIM (2FF) format. A SIM adapter kit is included in the box for Micro and Nano SIMs. Sites requiring inbound access for SCADA polling, remote WebUI, or VPN termination need a fixed IP SIM. Standard dynamic IP SIM cards sit behind carrier-grade NAT and block inbound connections. IoT and roaming SIM options are available at routerstore.com/sim-connectivity.

Does the RUT906 support VPN?

Yes. RutOS supports OpenVPN (client and server, 27 encryption methods), IPsec (IKEv1/IKEv2, 14 methods), WireGuard, ZeroTier, GRE, PPTP, L2TP/L2TPv3, Stunnel, DMVPN Phase 2 and 3 with Dual Hub, SSTP, and Tinc. Multiple tunnels run simultaneously. See the VPN on cellular routers guide for protocol selection guidance.

Related Products and Further Reading

The Teltonika RUT901 is the dual SIM 4G alternative for deployments without serial or GNSS requirements. The full range of Teltonika 4G routers is available to compare by specification. For cellular antenna upgrades beyond the included magnetic base antennas, the 4G antenna range includes panel, collinear, and MIMO options. For SIM connectivity, the SIM connectivity hub covers fixed IP, IoT, and roaming SIM options suited to the RUT906.