SKU: IOWC-1909
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Teltonika TRB255 Industrial LTE Cat M1/NB-IoT Gateway w/ GNSS

₹18,329.00 (Inclusive of all taxes)
Out of Stock

The Teltonika TRB255 is an industrial-grade LTE Cat M1/NB-IoT gateway designed for secure, low-power IoT deployments. It features dual SIM failover, RS232/RS485 serial interfaces, Ethernet, and supports industrial protocols like Modbus and MQTT for seamless SCADA and telemetry integration.

Features

  • Industrial LTE Cat M1 & NB-IoT connectivity with 2G fallback for reliable, low-power wide-area IoT deployments.
  • Dual SIM slots with automatic failover ensure maximum network uptime and redundancy in remote locations.
  • Integrated RS232 & RS485 serial ports plus Ethernet enable direct connection to PLCs, sensors, and industrial meters.
  • Supports key industrial protocols including Modbus, DNP3, BACnet, and DLMS for seamless SCADA and telemetry integration.
  • Rugged aluminum IP30 enclosure operates from -40°C to +75°C, built for harsh industrial and outdoor environments.

Out of stock

Description

The Teltonika TRB255 Industrial LTE Gateway is engineered for mission-critical IoT applications requiring robust, secure, and long-range wireless connectivity. It leverages LTE Cat M1 and NB-IoT networks for low-power, wide-area data transmission, with 2G fallback for maximum coverage reliability. The gateway’s dual SIM capability with intelligent auto-switching provides essential network redundancy, ensuring continuous operation even if one carrier fails.

Equipped with a comprehensive suite of interfaces, including a 10/100 Mbps Ethernet port, RS232, and RS485 serial lines, the TRB255 acts as a versatile bridge between legacy industrial equipment and modern IP networks. Its support for protocols like Modbus RTU/TCP, DNP3, BACnet, and MQTT facilitates seamless data exchange with PLCs, RTUs, smart meters, and cloud platforms. Advanced security features, including VPN tunnels and a built-in firewall, protect data integrity from edge to cloud.

Key Features

  • Multi-network LTE Cat M1, NB-IoT, and 2G (GSM/GPRS/EDGE) connectivity for flexible, low-power deployment.
  • Dual Mini-SIM slots with intelligent auto-failover and remote management for enhanced network reliability.
  • Comprehensive industrial interfaces: 10/100 Mbps Ethernet, RS232, RS485, and multiple digital/analog I/O ports.
  • Native support for industrial automation protocols: Modbus (RTU/TCP), DNP3, BACnet, DLMS/COSEM, and MQTT.
  • Integrated multi-constellation GNSS receiver (GPS, GLONASS, BeiDou, Galileo, QZSS) for precise asset tracking.
  • Rugged, fanless aluminum housing with IP30 rating and a wide operating temperature range of -40°C to +75°C.
  • Advanced security suite featuring VPN (OpenVPN, IPsec), firewall, and secure boot for end-to-end data protection.
  • Wide-range 9-30 VDC power input via a secure 2-pin terminal block, suitable for vehicular and solar-powered installations.

Applications

  • Smart Metering & Advanced Metering Infrastructure (AMI) for remote utility data collection.
  • Industrial IoT (IIoT) & SCADA systems for monitoring PLCs, pumps, and remote assets.
  • Fleet Management & Asset Tracking with integrated GNSS for real-time location updates.
  • Environmental Monitoring & Smart Agriculture for sensor data aggregation in field deployments.
  • Remote Telemetry & Vending Machine management over secure cellular networks.

Technical Specifications

ModelTRB255
Cellular ConnectivityLTE Cat M1, NB-IoT, 2G (GSM/GPRS/EDGE)
SIM SlotsDual Mini-SIM, auto-failover
Wired Interfaces10/100 Mbps Ethernet, RS232, RS485
Supported ProtocolsModbus, DNP3, BACnet, MQTT, DLMS/COSEM
GNSSGPS, GLONASS, BeiDou, Galileo, QZSS
Power Input9–30 V DC
Operating Temperature-40°C to +75°C
EnclosureAluminum, IP30
Connector2-pin terminal (within 16-pin block)
Dimensions (L x W)83 mm x 74.2 mm
Weight165 g

Frequently Asked Questions

How do I configure the TRB255 for Modbus RTU communication over RS485?

Connect your Modbus RTU slave devices to the gateway's RS485 terminals (A+/B-). Access the TRB255's web interface via Ethernet. Navigate to the 'Services' > 'Modbus Gateway' section. Define a new Modbus RTU master instance, specifying the correct serial port (e.g., /dev/ttyS1), baud rate (e.g., 9600), parity, and data format matching your slave devices. Map the desired register addresses and configure the data forwarding method, such as MQTT publishing to your broker or HTTP POST to a cloud server.

What is the procedure for setting up dual SIM failover on the TRB255?

Insert both active SIM cards from different network providers into the SIM1 and SIM2 slots. Log into the device's RutOS web interface. Go to 'Mobile' > 'SIM Cards'. Enable the 'SIM Failover' feature. Configure the primary SIM slot (e.g., SIM1) and set failure detection parameters like signal strength threshold and ping check intervals. The gateway will automatically switch to the secondary SIM if the primary connection is lost, ensuring continuous cellular connectivity for critical IoT applications without manual intervention.

Can I use the TRB255's GNSS for real-time asset tracking, and how is the data output?

Yes, the integrated multi-GNSS receiver supports GPS, GLONASS, BeiDou, Galileo, and QZSS for accurate positioning. To enable it, connect the included active GNSS antenna to the SMA connector. In the web UI, navigate to 'Services' > 'GPS'. Enable the GNSS module. The location data (latitude, longitude, speed, altitude) is available via NMEA sentences on a virtual serial port. You can configure the gateway to forward this data, for example, by embedding it in MQTT messages sent to your tracking platform or via HTTP requests to a specified endpoint at regular intervals.

Package Includes

  • 1 x Teltonika TRB255 Industrial LTE Gateway with GNSS
  • 1 x 9W Power Supply Unit (PSU)
  • 1 x Mobile LTE Antenna (Swivel, SMA Male)
  • 1 x GNSS Antenna (Adhesive, SMA Male, 3 m Cable)
  • 1 x 16-Pin Terminal Block
  • 1 x Hex Key
  • 1 x Ethernet Cable (1.5 m)
  • 1 x Quick Start Guide (QSG)
  • 1 x Packaging Box

Additional Information

Weight 0.165 kg
Dimensions 8.3 × 7.42 cm