Teltonika RUTX12 Dual LTE Cat 6 Industrial Cellular Router

Teltonika RUTX12

The Teltonika RUTX12 is a dual-modem LTE Cat 6 industrial cellular router with two completely independent cellular modems running simultaneously. Each modem delivers up to 300 Mbps download. With load balancing active, combined cellular throughput reaches up to 600 Mbps. This is the primary distinction from a standard dual-SIM router: the RUTX12 runs two separate physical LTE modems, both live at the same time, not a single modem switching between two SIM slots.

Beyond the dual-modem cellular core, the RUTX12 includes built-in GNSS (GPS, GLONASS, BeiDou, Galileo, QZSS), Bluetooth 4.0 LE, Wave-2 dual-band Wi-Fi 5, five Gigabit Ethernet ports, and RutOS with OpenVPN, WireGuard, IPsec, Modbus TCP, OPC UA, DNP3, MQTT, and Teltonika RMS remote management. Both modems support Bondix bonded 4G for aggregated cellular bandwidth over a single IP.

Key features

• Dual independent LTE Cat 6 modems: up to 300 Mbps download per modem; both run simultaneously, not as a failover pair.
• Combined throughput up to 600 Mbps: load balancing distributes live traffic across both cellular connections at the same time.
• Hot-swap failover: if one modem loses its connection, all traffic shifts to the other immediately without manual intervention.
• Bondix bonded 4G support: aggregate bandwidth from two separate carrier connections into a single higher-throughput WAN link.
• Dual Mini SIM (2FF): one SIM slot per modem; eSIM available on 23**** order codes, supporting up to seven profiles.
• Wave-2 dual-band Wi-Fi 5 (802.11ac): MU-MIMO, up to 867 Mbps, supports up to 150 simultaneous clients, fast roaming (802.11r).
• 5 x Gigabit Ethernet: 1 x WAN configurable as LAN, 4 x LAN, 10/100/1000 Mbps on all ports.
• Built-in GNSS: GPS, GLONASS, BeiDou, Galileo, QZSS with NMEA 0183 output, configurable geofencing, and NTRIP protocol support.
• Bluetooth 4.0 LE: short-range BLE communication, proximity sensing, and asset tracking alongside the cellular backhaul.
• RutOS full protocol stack: 13 VPN protocols, Modbus TCP, OPC UA, DNP3, MQTT broker, TR-069, SNMP v3, Azure IoT Hub, AWS IoT Core.
• Full aluminium housing: -40 to +75 °C, IP30, DIN rail mountable (kit sold separately), grounding screw included.

What is the RUTX12 used for?

High-uptime SCADA and DNP3 telemetry

Remote substations, water treatment sites, and energy metering installations use the RUTX12 where a dropped cellular link cannot interrupt DNP3 polling or Modbus TCP data exchange. With two live modems on separate mobile network operators, a single carrier outage does not affect connectivity. Each modem has its own SIM idle protection to prevent inactive SIM cards from being deactivated by the carrier.

Bonded 4G for high-bandwidth remote sites

Where a single LTE connection cannot deliver sufficient bandwidth, the RUTX12 supports Bondix bonded cellular service, combining two separate carrier connections into a single higher-throughput WAN link. This suits live video uplinks, large-file transfer from remote construction or broadcast sites, and high-volume M2M data feeds where per-carrier throughput is a constraint.

Enterprise WAN with active dual-modem load balancing

The RUTX12 handles multi-WAN edge deployments where both cellular connections need to carry live traffic simultaneously. Five Gigabit Ethernet ports, VLAN support, dynamic routing via BGP, OSPF v2, and EIGRP, plus load balancing across wired WAN and both modems, support complex network topologies at remote or branch sites without fixed-line infrastructure.

Fleet management and vehicle tracking

The integrated multi-constellation GNSS module delivers real-time position data alongside dual-modem LTE connectivity for vehicle tracking, fleet management, and logistics applications. NMEA 0183 output feeds TAVL and RMS platforms directly. Configurable geofence zones trigger SMS or RMS alerts on entry and exit events, with no external GPS hardware required.

Smart city and public Wi-Fi with dual-modem backhaul

The RUTX12’s captive portal hotspot, 150-client Wi-Fi 5 radio, and dual-modem cellular backhaul suit temporary event Wi-Fi, public access points, and smart city edge nodes where bandwidth and resilience both matter. The hotspot supports external and internal RADIUS, SMS OTP, MAC authentication, and walled garden, all configurable from the RutOS WebUI.

Critical infrastructure with mobile network operator diversity

Energy and utility installations that cannot tolerate a single-operator failure put each RUTX12 SIM on a different MNO. If one operator has a regional outage, the second modem continues Modbus TCP or OPC UA data exchange without intervention. Teltonika RMS provides per-modem signal monitoring and alert delivery across the whole estate from a single management view.

Pro tip

The RUTX12 has four SMA mobile antenna ports on the rear panel: MAIN and AUX for SIM1, and MAIN and AUX for SIM2. For best dual-modem performance, connect antennas to all four ports. Always fit an antenna to both MAIN ports before powering up. Running either modem without an antenna on its MAIN port risks modem damage from reflected power. In space-constrained enclosures where routing four cables is difficult, fit the supplied stubs to the AUX ports rather than leaving them open.

Building a resilient cellular connection

The RUTX12 runs two independent LTE modems, so the first step in building resilience is placing each SIM on a different mobile network operator. A single MNO outage then cannot affect both modems at once. Add a UPS on the 9-50 V DC power input to protect against mains failure, and use a fixed IP SIM on at least one slot to allow stable inbound VPN and remote management sessions without carrier-grade NAT interference. Enable Teltonika RMS monitoring to receive real-time signal and connectivity alerts across both modems from a single dashboard.

Frequently asked questions

What is the difference between the RUTX12 and a standard dual-SIM router?

Most dual-SIM routers have one cellular modem and two SIM slots. One SIM is active at a time; the other waits for a failover trigger, then the modem renegotiates a connection on the second SIM. The RUTX12 has two entirely separate LTE Cat 6 modems, one assigned per SIM slot. Both modems run simultaneously. This means the RUTX12 can load-balance traffic across two live connections at the same time, not just switch between them. Combined download throughput with both modems active reaches up to 600 Mbps.

Does the RUTX12 support eSIM?

eSIM is available on RUTX12 23**** order codes only. The 2***** EMEA variants do not include eSIM. Where supported, the eSIM holds up to seven profiles and supports over-the-air profile download and removal, but it does not include data plans. For an overview of eSIM in industrial routers, see our eSIM routers explainer. Confirm which order code is being stocked with Dan before publishing.

What SIM cards does the RUTX12 take?

Both SIM holders take Mini SIM (2FF) cards. A SIM adapter kit is included in the box for Micro or Nano SIMs. For remote management and inbound VPN connections, we recommend a fixed IP SIM on at least one slot. A fixed IP SIM gives the router a stable, publicly routable address, removing the carrier-grade NAT barrier that prevents inbound SSH or VPN sessions on standard data SIMs. If you need SIM recommendations, call us.

What VPN protocols does the RUTX12 support?

RutOS on the RUTX12 supports OpenVPN (27 encryption methods, client and server simultaneously), IPsec (IKEv1/v2, 14 methods), WireGuard, GRE, L2TP v3, PPTP, Stunnel, DMVPN (Phase 2, Phase 3, and Dual Hub), SSTP, ZeroTier, Tinc, and Tailscale. Multiple VPN instances run simultaneously across both modems. See our VPN on cellular routers guide for a protocol comparison.

What industrial protocols does the RUTX12 support?

RutOS includes Modbus TCP client and server with custom register mapping, OPC UA client and server over TCP, DNP3 station and outstation over TCP, DLMS/COSEM client, and MQTT broker and publisher. Data to Server forwards telemetry to HTTP(S), MQTT, or Azure MQTT endpoints, with direct integrations for Azure IoT Hub (including Device Provisioning Service and zero-touch provisioning), AWS IoT Core, ThingWorx, and Cumulocity built in.

Does the RUTX12 come with a mounting bracket?

No. The RUTX12 supports DIN rail, wall mount, and flat-surface mounting, but all options require a separate mounting kit not included in the standard package. The standard package contains the router, 24 W PSU, four mobile SMA antennas, two Wi-Fi magnetic SMA antennas, a GNSS adhesive SMA antenna, a Bluetooth magnetic SMA antenna, a 1.5 m Ethernet cable, a SIM adapter kit, and a quick start guide. Confirm mounting kit availability and SKU with Dan.

Related products and further reading

For external antenna installations with the RUTX12 in cabinets or on vehicle rooflines, browse our 4G antenna range. For deployments where a single modem with dual-SIM failover is sufficient, see the full Teltonika 4G router range. Manage the RUTX12 alongside your wider Teltonika estate through Teltonika RMS.