TELTONIKA Trb143 M-bus Cellular Gateway

The Teltonika TRB143 M-Bus Cellular Gateway is an industrial gateway designed for telemetry and utility monitoring. It integrates an M-Bus interface that supports up to 250 client devices, offers cellular (4G/LTE Cat 4, 3G, 2G) and wired connectivity via a Gigabit Ethernet port, and includes digital input/output lines. The device is built in a rugged aluminum housing with an IP30 rating and features an external SMA antenna for reliable data transmission in various environments.

Advantages

The TRB143 combines an integrated M-Bus interface with cellular and Ethernet connectivity, enabling remote collection of meter and sensor data. Its support for up to 250 M‑Bus clients, ARM Cortex‑A7 processing, common network protocols (TCP, UDP, MQTT) and Gigabit Ethernet ensures scalable and efficient data handling. The compact steel/aluminum enclosure and external SMA antenna simplify installation and improve signal reliability for 4G mobile networks.

Suitable for

• Remote utility meter reading and telemetry
• Environment and infrastructure monitoring
• Data aggregation from multiple M‑Bus sensors
• Industrial sites requiring cellular failover or primary connectivity

Key specifications

• Model: Teltonika TRB143 (MPN: TRB143000000, EAN: 4779051840137)
• Interfaces: integrated M‑Bus, 1 × Gigabit Ethernet (10/100/1000 Mbit/s), digital I/O
• Cellular: 4G/LTE Cat 4, 3G, 2G
• Processor: ARM Cortex‑A7
• Network protocols: TCP, UDP, MQTT
• Antenna: external SMA
• Durability and enclosure: rugged aluminum / steel colour, IP30
• Maximum M‑Bus clients: up to 250 devices
• Weight: 0.145 kg

How to use

Install the TRB143 in a suitable indoor location with adequate cellular coverage, mount the external SMA antenna, and connect the Gigabit Ethernet as required. Configure the M‑Bus interface to discover and register up to 250 client meters or sensors. Use the device web UI or supported management tools to set network parameters (APN, IP settings) and enable required protocols such as MQTT for data forwarding to your server or cloud platform. Connect digital inputs/outputs to external sensors or control lines as needed.

Recommendations

For reliable operation, place the gateway where cellular signal strength is sufficient and use a high‑quality external antenna. Keep firmware up to date and secure access with proper credentials and firewall rules. Verify M‑Bus device addressing and termination when deploying large numbers of meters.