TRB2 series

Overview

The TRB2 series are industrial IoT gateways that combine Ethernet, RS232, RS485 and configurable I/O on a 16-pin terminal block with dual SIM cellular connectivity. Variants cover LTE Cat 4, LTE Cat 1 bis, LTE Cat M1/NB-IoT and LTE 450 MHz for private and utility networks. They support protocols such as DNP3, DLMS and Modbus and are housed in aluminium for harsh environments.

Built for

Smart metering and utilities
SCADA and substation links
Private LTE 450 networks
Low-power remote telemetry

Key features

All-in-one terminal

RS232, RS485, 3 configurable I/Os and an analog input on one 16-pin block.

Dual SIM

Double-stacked SIM tray with failover.

Network choice

LTE Cat 4, Cat 1 bis, Cat M1/NB-IoT or LTE 450 depending on model.

Industrial protocols

DNP3, DLMS and Modbus support listed by Teltonika.

GNSS positioning

Available on TRB246, TRB247 and TRB256.

Specifications

Cellular: LTE Cat 4, Cat 1 bis, M1/NB-IoT, LTE 450
SIM: 2 x Mini SIM, stacked tray
Ethernet: 1 x RJ45, 10/100 Mbps
Serial: RS232 + RS485 (16-pin terminal)
I/O: 3 x digital I/O, 1 x analog input
GNSS: On TRB246, TRB247, TRB256
Power input: 9-30 VDC (9-57 VDC on TRB236)
Housing: Aluminium
Dimensions: 83 x 25 x 74.2 to 82.6 mm
Operating temp.: -40 to 75 °C
Ingress protection: IP30

Models

Model	Cellular	Ethernet	Interfaces
TRB236	LTE 450 MHz (Cat 4 or Cat 1)	1 x 10/100	RS232, RS485, I/O
TRB246	4G LTE Cat 4, 3G, 2G	1 x 10/100	RS232, RS485, I/O, GNSS
TRB247	4G LTE Cat 1 bis	1 x 10/100	RS232, RS485, I/O, GNSS
TRB256	LTE Cat M1, NB-IoT	1 x 10/100	RS232, RS485, I/O, GPS