The RUT281 is a compact LTE router equipped with a reliable Telit Cat 4 modem, designed to ensure stable performance and long-term operation on networks worldwide. It ensures always-on connectivity thanks to support for SIM and eSIM, and uses eSIM bootstrap to conveniently download the initial profile. It preserves network continuity with WAN failover, keeping systems online in the event of connection loss in critical environments. Finally, the compact 83 × 25 × 74 mm housing allows for flexible installations, making it ideal for deployments in confined spaces.

Technical Features

Hardware

• Mobile: 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
• CPU: Mediatek, 580 MHz, MIPS 24KEc
• RAM: 128 MB, DDR2
• Storage: 32 MB, SPI Flash
• Power options: 4-pin industrial DC power socket, 9 - 30 VDC
• SIM: 1 x SIM slot (Mini SIM – 2FF), 1.8 V/3 V, external SIM support
• eSIM™: Consumer type eSIM™, profile download and removal operations, up to 7 eSIM™ profiles
• Antenna connectors: 2 x SMA for LTE, 1 x RP-SMA for Wi-Fi antenna connectors
• Ethernet: 2 x RJ45 ports, 10/100 Mbps
• Wi-Fi: 802.11b/g/n (Wi-Fi 4), Access Point (AP), Station (STA)
• Input/Output: 1 x Digital Input, 0 - 6 V detected as logic low, 8 - 30 V detected as logic high; 1 x Digital Output, Open Collector output, max 30 V, 300 mA
• Status LEDs: 3 x connection type status LEDs, 5 x connection strength LEDs, 2 x LAN status LEDs, 1 x power LED
• Operating temperature: -40 °C to 65 °C
• Case: Aluminum housing, plastic panels
• Dimensions (W x H x D): 83 x 25 x 74 mm
• Weight: 130 g

Software

• Operating system: RutOS (OpenWrt based Linux OS)
• Mobile features: eSIM, SIM switch, Status, SMS, USSD, Black/White list, Multiple PDN, Band management, SIM idle protection service, APN, Bridge, Passthrough
• Network features: VoIP passthrough support, Connection monitoring, Firewall, Firewall status page, Port management, Network topology, Hotspot, DHCP, QoS / Smart Queue Management (SQM), DDNS, DNS over HTTPS, Network backup, Load balancing, SSHFS
• Security: Authentication, Firewall, Attack prevention, VLAN, Mobile quota control, WEB filter, Access control, Certificate manager
• VPN and tunneling: OpenVPN, IPsec, GRE, PPTP, L2TP, Stunnel, DMVPN, SSTP, ZeroTier, WireGuard, Tinc
• Monitoring and Management: WEB UI, FOTA, SSH, SMS, Call, Email, TR-069, MQTT, SNMP, JSON-RPC, RMS
• Cloud Solutions: RMS, ThingWorx, Cumulocity - Cloud of Things, Azure IoT Hub, AWS IoT Core
• Services: OPC UA, Modbus, Data to Server, Modbus MQTT Gateway, DNP3, DLMS/COSEM, API