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Teltonika TRB143
LTE Cat 4 M-Bus gateway for utility metering, district heating and smart meter concentrators.
LTE Cat 4
M-Bus
GbE
DI/O
250 slaves
M-Bus
GbE
DI/O
250 slaves
LTE Cat 4 M-Bus gateway for utility metering, district heating and smart meter concentrators.
The TRB143 was designed specifically for smart metering and utility monitoring. It is the only TRB model with M-Bus – the European standard communication protocol for utility meters including gas, water, electricity and heat. This makes it the natural choice for district heating, building energy management and remote meter reading deployments.
The gateway supports up to 250 M-Bus slave devices wirelessly and up to 6 via the wired M-Bus interface. A Gigabit Ethernet port handles the upstream connection to a head-end system or cloud platform, with 4G LTE Cat 4 as the primary or backup WAN link. Digital I/O handles additional sensor and alarm inputs.
| Cellular | 4G LTE Cat 4, 3G, 2G |
|---|---|
| Download | 150 Mbps |
| M-Bus (Wireless) | Up to 250 slave devices |
| M-Bus (Wired) | Up to 6 slave devices |
| Ethernet | 1x RJ45 Gigabit |
| SIM | 1x SIM slot |
| I/O | Digital inputs and outputs |
| Housing | Aluminium, compact |
| Operating Temp | -40°C to +75°C |
| Power Input | 9-30 VDC |
| Mounting | DIN rail, wall mount |
| OS | RutOS (OpenWrt Linux) |
| VPN | OpenVPN, WireGuard, IPsec |
| Management | WebUI, RMS, SNMP, SSH |
M-Bus (Meter-Bus) is a European standard (EN 13757) for remote reading of utility meters. It is a two-wire bus protocol designed specifically for meters in buildings – it can power the meter from the bus, which simplifies installation. M-Bus is widely used in district heating, gas, water and electricity metering across Europe.
The TRB143 acts as an M-Bus master, polling connected meters and forwarding the data over LTE to a central system. This eliminates the need for manual meter reading or expensive dedicated metering infrastructure at each site.
Read heat meters from multiple apartments in a building. Forward consumption data to the billing system over LTE.
Monitor water consumption at apartment or floor level in commercial and residential properties.
Aggregate electricity sub-meter readings across a building or campus for energy management.
Integrate with BMS systems for multi-utility monitoring from a single connected gateway.