Teltonika RUT906 | 4G LTE Industrial Router with RS232/RS485 | Dual SIM & GNSS | MQTT, BACnet, OPC UA | Serial-to-Cellular Gateway

The Teltonika RUT906 is a versatile 4G LTE industrial router designed for IoT applications that require serial connectivity. Teltonika RUT906 comes with RS232 and RS485 interfaces, it bridges legacy serial devices to modern IP networks, making it ideal for SCADA systems, utility metering, building automation, and industrial IoT deployments.

Serial-to-Cellular Connectivity
The Teltonika RUT906 features a DB9 RS232 port (with RTS/CTS flow control) and a 6-pin industrial RS485 connector supporting both full-duplex (4-wire) and half-duplex (2-wire) modes. Serial functions include console access, serial-over-IP, and modem emulation. Industrial protocol support includes Modbus RTU/TCP, BACnet (IP/RTU), OPC UA, DNP3 (RS232/RS485/TCP), DLMS/COSEM, and MQTT.

Reliable Cellular Connectivity
4G LTE Cat 4 provides speeds up to 150 Mbps download and 50 Mbps upload with fallback to 3G and 2G. Dual SIM slots plus optional eSIM (up to 7 profiles) ensure network redundancy with auto-switch scenarios including weak signal, data limit, roaming, and network failure. SIM idle protection prevents SIM cards from being blocked.

GNSS Location Tracking
Built-in GNSS supports GPS with GLONASS, BeiDou, Galileo, and QZSS (under development). NTRIP support enables RTK corrections for high-precision positioning. GNSS coordinates are accessible via WebUI, SMS, TAVL, and RMS. Geofencing allows configurable multiple zones for location-based alerts.

Comprehensive I/O & Connectivity
Teltonika RUT906 router includes 4x Ethernet ports (1 WAN + 3 LAN), Wi-Fi 802.11b/g/n (up to 100 clients), digital I/O (2 inputs, 2 outputs including relay), USB 2.0 port, and internal microSD slot (up to 2TB). The I/O juggler allows setting conditions to trigger events via email, RMS, or SMS.

Industrial Protocol Support

• Modbus: Server/Client over RTU (RS232/RS485), TCP, USB; custom register blocks

• BACnet: Router mode over IP, RTU (RS485, USB); BBMD support

• OPC UA: Client/Server over TCP

• DNP3: Station/Outstation over RS232, RS485, TCP, USB

• DLMS/COSEM: Client over RS232, RS485, TCP

• MQTT: Broker and publisher; Modbus MQTT Gateway

Security & VPN
Teltonika RUT906 has advanced security includes preconfigured firewall, attack prevention (DDOS, SYN flood, SSH/HTTP attacks), VLAN support, and access control. VPN support includes OpenVPN (27 encryption methods), IPsec (IKEv1/v2, 14 methods), WireGuard, PPTP, L2TP, GRE, DMVPN, SSTP, and ZeroTier.

Management & Monitoring
Manage via WEB UI, SMS, SSH, TR-069, SNMP (v1/v2/v3), and JSON-RPC. Teltonika RMS provides centralized remote management. Hotspot/captive portal with internal/external Radius, SMS authentication, and customizable landing pages

Key Features

• 4G LTE Cat 4 Connectivity: Up to 150 Mbps download / 50 Mbps upload with 3G/2G fallback

• RS232 & RS485 Serial Interfaces: DB9 RS232 (with RTS/CTS) and 6-pin industrial RS485 for legacy device integration

• Dual SIM + eSIM: 2x Mini SIM slots + optional eSIM with auto-switch for seamless failover

• GNSS Location Tracking: GPS with GLONASS, BeiDou, Galileo, QZSS; NTRIP support for RTK corrections

• Industrial Protocol Support: Modbus RTU/TCP, BACnet (IP/RTU), OPC UA, DNP3 (RS232/RS485/TCP), DLMS/COSEM, MQTT

• Digital I/O: 2x Digital Inputs, 2x Digital Outputs (including relay output) for automation

• SD Card Slot: Internal microSD up to 2TB for storage expansion

• USB 2.0 Port: External device connectivity (HDD, flash drive, modem, printer, USB-serial adapter)

• VPN & Security: OpenVPN, IPsec, WireGuard, PPTP, L2TP, GRE, DMVPN, ZeroTier, Tinc

• RMS Remote Management: Teltonika Remote Management System for centralized control

• Rugged Design: Aluminium housing, IP30, -40°C to 75°C, DIN rail/wall/flat surface mounting