Teltonika RUTC42 eSIM UK – dual modem edge router with 2x 4G LTE Cat 4, Wi-Fi 6, Docker and load balancing
The Teltonika RUTC42 eSIM UK is a dual modem edge router for professional environments where uptime, local processing and central management are important. This router combines two 4G LTE Cat 4 modems with dual-band Wi-Fi 6, Gigabit Ethernet and native Docker support for edge applications and microservices on the device itself. With dual-modem failover, load balancing and independent SIM switching per modem, the RUTC42 is designed to mitigate single points of failure. Combined with RutOS and Teltonika RMS, this model supports secure remote configuration, monitoring, FOTA and advanced data collection. The UK version comes with a UK PSU, making it suitable for deployment in the United Kingdom.
Edge router for mission-critical uptime and local application processing
The RUTC42 is designed for deployments where network availability and local edge processing converge within a single router platform. The combination of two LTE Cat 4 modems, load balancing, failover, a dual-core CPU, 1 GB of DDR4 RAM and Docker support makes this model suitable for environments where applications and network logic need to run close to location. This model aligns with sectors such as energy & utilities, enterprise, industrial & automation, retail and smart city. The integration with RMS additionally supports centralized management within larger managed environments.
Why Teltonika RUTC42 eSIM UK?
- Two 4G LTE Cat 4 modems support failover and load balancing for high availability of mobile connectivity.
- Native Docker support supports running isolated applications and services directly on the router.
- Wi-Fi 6 with dual-band MU-MIMO supports high wireless capacity and performance up to 2402 Mbps at 5 GHz and 576 Mbps at 2.4 GHz.
- 5 x Gigabit Ethernet ports support wired integration in professional network environments.
- 2x eSIM and 2 x physical SIM slots support flexible modem configurations and independent SIM switching per modem.
- The UK version comes with UK PSU for direct deployment in the United Kingdom.
Applications
- Energy & utilities
- Enterprise
- Industrial & automation
- Retail
- Smart city
- Edge computing on site
- Mission-critical network connectivity with failover
- Managed deployments with centralized management through RMS
Key features
- 2x 4G LTE Cat 4
- 2x eSIM
- 2 x Mini SIM slots
- Independent SIM switching per modem
- Wi-Fi 6 dual-band with MU-MIMO
- Up to 500 simultaneous Wi-Fi connections
- 5 x RJ45 Gigabit Ethernet
- Dual-core Mediatek CPU, 1.3 GHz
- 1 GB DDR4 RAM
- 16 MB serial NOR flash and 8 GB eMMC
- Native Docker support
- RutOS based on OpenWrt Linux OS
- RMS compatible for remote management
Key technology and integration points
The RUTC42 combines dual modem mobile connectivity, Wi-Fi 6, Gigabit Ethernet and edge computing within a single router platform. For integration, this model supports protocols and services such as BacNET, OPC UA, Modbus, Data to Server, Modbus MQTT Gateway, DNP3, DLMS/COSEM and the Teltonika Networks Web API. Docker support allows isolated applications and services to run directly on the device. This makes the router suitable for local processing, network segmentation and integration with industrial and cloud-based environments.
Management and configuration
For management, the RUTC42 supports WebUI, FOTA, SSH, SMS, Call, Email, TR-069, MQTT, SNMP, JSON-RPC and Teltonika Remote Management System. Through these management options, configuration, firmware management, troubleshooting and monitoring can be performed centrally. In addition, the model supports cloud integrations with ThingWorx, Cumulocity, Azure IoT Hub and AWS IoT Core. This aligns the router with environments where remote management and central device orchestration play an important role.
Connectivity specifications
Mobile
- 2x 4G LTE Cat 4 up to 150 DL / 50 UL Mbps
- 3G up to 21 DL / 5.76 UL Mbps
- 2G up to 236.8 DL / 236.8 UL kbps
- 2x consumer type eSIM
- Up to 7 eSIM profiles
- 3GPP Release 9
- Independent SIM switching per modem
- 2 x Mini SIM slots (2FF)
Wi-Fi
- 802.11b/g/n/ac/ax (Wi-Fi 6)
- Dual band
- MU-MIMO
- Up to 2402 Mbps at 5 GHz
- Up to 576 Mbps on 2.4 GHz
- Up to 500 simultaneous connections
Ethernet
- 1 x WAN port 10/100/1000 Mbps
- 4 x LAN ports 10/100/1000 Mbps
- WAN configurable as LAN
- IEEE 802.3, IEEE 802.3u, 802.3az
- Auto MDI/MDIX crossover
Technical specifications
System
- Mediatek Dual Core, 1.3 GHz
- 1 GB DDR4 RAM
- 16 MB serial NOR flash
- 8 GB eMMC
- RutOS (OpenWrt based Linux OS)
Network and software
- Static routing
- Dynamic routing
- Policy-based routing
- QoS / Smart Queue Management
- DNS over HTTPS
DDNS
- Hotspot and Hotspot 2.0
- Load balancing
- Network backup
- Port Mirroring
- 802.1x
- VLAN
- OpenVPN, IPsec, GRE, PPTP, L2TP, Stunnel, DMVPN, SSTP, ZeroTier, WireGuard, Tinc, Tailscale
Interfaces and I/O
- 1 x Digital Input
- 1 x Digital Output
- 1 x USB A port
- 1 x Grounding screw
- 4 x SMA for Mobile
- 3 x RP-SMA for Wi-Fi
Nutrition
- 4-pin industrial DC power socket
- 9 – 50 VDC
- Passive PoE via LAN1, Mode B
- Idle: < 6 W
- Max: < 24 W
Environment and hardware
Housing
- Aluminum housing
- DIN rail, wall mount, flat surface with additional kit
- Dimensions and weight
- 130.4 x 42.6 x 103.4 mm
- 452 g
Environmental specifications
- Operating temperature: -40 °C to 75 °C
- Operating humidity: 10% to 90% non-condensing
- IP30
Certifications
- CE, UCRF, EAC, UKCA, CB, WEEE
In the box
- RUTC42
- 18 W UK PSU
- 4 x Mobile SMA antennas
- 3 x Wi-Fi dual-band SMA antennas
- Ethernet cable 1.5 m
- SIM adapter kit
- Quick Start Guide




