Teltonika RUT906

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The Teltonika RUT906 is a 4G LTE Cat 4 industrial router built for deployments that combine cellular connectivity with serial equipment integration. It carries both RS232 and RS485 interfaces alongside four Ethernet ports, dual SIM, onboard GNSS, and a dedicated I/O connector block — making it the right choice where a standard cellular router falls short. Typical applications include remote substations, energy metering, BMS gateways, SCADA outstations, and any site running legacy serial devices alongside IP infrastructure.

The RS232 port of the RUT906 uses a DB9 connector with RTS/CTS flow control and supports 300 to 115200 baud. The RS485 port operates in full-duplex (4-wire) and half-duplex (2-wire) modes at up to 230400 baud. Both ports support Modbus RTU, DNP3, DLMS/COSEM, and Serial over IP. The RS485 port also supports BACnet MS/TP. The I/O block adds an analogue input (0–24 V / 4–20 mA), a galvanically isolated digital input, a dry contact digital input, an SPST relay output, and open collector outputs — all configurable in RutOS for event-triggered actions via SMS, email, or Teltonika RMS. RutOS also covers the full networking and VPN suite: OpenVPN, IPsec IKEv2, WireGuard, ZeroTier, DMVPN, Modbus TCP, OPC UA, MQTT, and TR-069, running on a Mediatek 580 MHz CPU with 128 MB RAM.

Key Features:

• 4G LTE Cat 4 dual SIM — up to 150 Mbps download / 50 Mbps upload; auto-failover between SIM slots on weak signal, data limit, roaming, or network denied; configurable in RutOS
• RS232 (DB9, RTS/CTS, 300–115,200 baud) and RS485 (full and half-duplex, 300–230,400 baud) — both support Modbus RTU, DNP3, DLMS/COSEM, and Serial over IP; RS485 also supports BACnet MS/TP
• Extended I/O block — analogue input (0–24 V / 4–20 mA current loop), galvanically isolated digital input (0–30 V), dry contact digital input, SPST relay output (40 V / 4 A), open collector outputs; events trigger SMS, email, or RMS alerts
• GNSS: GPS, GLONASS, BeiDou, Galileo — NMEA 0183 output, NTRIP support, geofencing, and AVL server integration for asset tracking and GNSS-derived NTP synchronisation
• 4 x Ethernet ports — 1 x WAN, 3 x LAN, 10/100 Mbps, auto MDI/MDIX; WAN configurable as LAN for Wi-Fi WAN or cellular-only deployments
• Wi-Fi 4 (802.11b/g/n, 2.4 GHz) — access point and client modes, WPA3/WPA2, up to 100 simultaneous clients, 2 x RP-SMA connectors
• USB 2.0 — Samba share, USB-to-serial adapter support, external storage (FAT, FAT32, exFAT, ext2/3/4); SD card slot for local data logging
• Industrial protocol support — Modbus RTU/TCP, BACnet MS/TP and TCP, DNP3, OPC UA, DLMS/COSEM, MQTT broker and publisher; Data to Server via HTTP(S), MQTT, Azure IoT Hub
• Full VPN suite — OpenVPN, IPsec IKEv2, WireGuard, ZeroTier, GRE, L2TP, DMVPN Phase 2 and 3, SSTP, Stunnel, Tinc, PPTP
• Teltonika RMS compatible — remote monitoring, FOTA firmware updates, configuration push, I/O event alerts, and RMS Connect tunnelling
• Operating temperature -40 to +75°C, IP30, aluminium housing; DIN rail and wall mount ready (kit sold separately); CE, UKCA, E-mark certified

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