The Teltonika RUTM55 is an industrial 5G router with RS232 and RS485, four Gigabit Ethernet ports, dual SIM plus eSIM, dual-band Wi-Fi 5, GNSS and USB. It is built for sites that need 5G speeds while still connecting older serial equipment such as PLCs, meters and controllers.

The defining capability of the RUTM55 is combining 5G with built-in serial interfaces. RS232 and RS485 devices can be read over Modbus or have their data forwarded to a server, without a separate serial gateway. The SIM slots sit inside the housing, the eSIM lets network profiles be changed remotely, and the router switches connections automatically if a network drops.

Key Features

• 5G modem: Sub-6 GHz SA/NSA, up to 2.4/3.4 Gbps download (4x4 MIMO) and 900/550 Mbps upload, with 4G LTE and 3G fallback (3GPP Release 16)
• Dual SIM (2x Mini SIM 2FF) in internal holders plus eSIM, with automatic SIM switching
• RS232 (TX, RX) and 2-wire RS485 on terminal block connectors
• 4x Gigabit Ethernet RJ45 ports
• Wi-Fi 5 (802.11ac Wave 2), dual band, up to 867 Mbps
• GNSS: GPS, GLONASS, BeiDou, Galileo and QZSS
• 1x USB A port
• Power input 9-50 V DC via a 3-pin pluggable terminal block, with reverse polarity and surge protection
• VPN: OpenVPN, IPsec, WireGuard, Tailscale, ZeroTier, GRE, PPTP, L2TP, DMVPN, SSTP, Stunnel, Tinc
• Industrial protocols: Modbus TCP and RTU, BACnet/IP, OPC UA, DNP3, DLMS/COSEM, plus Data to Server
• Teltonika RMS remote management compatible
• Operating temperature -40 to +75 °C, IP30, anodised aluminium housing, 132 x 44.2 x 95 mm, 430 g, DIN rail, wall or flat surface mounting (kits sold separately)