The Teltonika TRB143 is an industrial 4G LTE Cat 4 gateway with a built-in M-Bus interface, Gigabit Ethernet and digital I/O. It is designed for utility and building metering, reading water, heat, gas and electricity meters and sending the data to a central system.

The defining capability of the TRB143 is reading M-Bus meters directly, without a separate level converter or data logger. It can poll up to 250 meters on one bus and forward the readings to a server over the mobile network, which suits apartment blocks, district heating schemes and commercial buildings. Teltonika RMS lets the whole estate of gateways be managed remotely.

Key Features

• Mobile: 4G LTE Cat 4, up to 150 Mbps download / 50 Mbps upload, with 3G and 2G fallback (3GPP Release 11)
• Single SIM slot (Mini SIM 2FF), with an eSIM hardware version also available
• M-Bus interface supporting up to 250 client devices
• 1x Gigabit Ethernet RJ45 port
• 1x Digital Input and 1x Digital Output
• Power input 12-30 V DC via a 4-pin industrial socket
• VPN: OpenVPN, IPsec, WireGuard, ZeroTier, GRE, PPTP, L2TP, DMVPN, SSTP, Stunnel, Tinc
• Industrial protocols: Modbus, MQTT, plus Data to Server for meter readings
• Teltonika RMS remote management compatible
• Operating temperature -40 to +75 °C, IP30, 74.5 x 25 x 73 mm, 145 g