The Teltonika TRB236 is an industrial 4G LTE Cat 4 gateway with 450 MHz band support, dual SIM, RS232, RS485, an Ethernet port and three digital outputs. It is designed for utilities and critical infrastructure operators using LTE 450 networks, while still working on standard 4G networks.

The defining capability of the TRB236 is access to LTE 450 networks. The 450 MHz band travels further and penetrates buildings better than higher frequencies, which is why it is used for utility and private networks, and the gateway can also fall back to standard 4G bands. Serial interfaces and digital outputs connect meters, RTUs and control equipment directly.

Key Features

• Mobile: 4G LTE Cat 4, up to 150 Mbps download / 50 Mbps upload, including 450 MHz bands (B31, B72, B87), with 3G fallback (3GPP Release 9)
• Dual SIM (2x Mini SIM 2FF) in a double stacked tray, with automatic SIM switching
• RS232 (TX, RX, RTS, CTS) and 2 or 4-wire RS485 on a terminal block
• 1x 10/100 Mbps Ethernet port
• 3x configurable digital outputs (open collector, up to 30 V, 300 mA)
• Power input 9-57 V DC via an industrial terminal block, with overvoltage, reverse polarity and surge protection
• VPN: OpenVPN, IPsec, WireGuard, ZeroTier, GRE, PPTP, L2TP, DMVPN, SSTP, Stunnel, Tinc
• Industrial protocols: Modbus TCP and RTU, MQTT, plus Data to Server
• Teltonika RMS remote management compatible
• Operating temperature -40 to +75 °C, IP30, 83 x 25 x 79.8 mm, 175 g