The Teltonika TRB256 is a compact industrial NB-IoT gateway supporting 450 MHz band for enhanced LTE signal penetration. It features dual SIM slots, Ethernet, RS232, RS485, and I/O interfaces, making it ideal for remote monitoring and control in challenging environments.

Feature

Specification

Model

Teltonika TRB256

Connectivity

4G LTE Cat M1 (up to 588 DL / 1119 UL kbps), Cat NB2 (up to 127 DL / 158.5 UL kbps), Cat NB1 (up to 32 DL / 70 UL kbps)

Frequency Bands

Supports 450 MHz band (B31), enhancing LTE signal penetration

SIM Slots

2 × Mini SIM (2FF), auto-switching

Ethernet Port

1 × 10/100 Mbps

Serial Ports

1 × RS232, 1 × RS485

Digital I/O

3 × Configurable digital I/O pins

Analog Input

1 × 0–30 V

Relay Output

1 × 0.5 A at 60 VDC

Power Input

9–30 VDC via 16-pin terminal block

Power Consumption

Idle: <2 W; Max: <5 W

Operating Temperature

-40°C to +75°C

Humidity

10%–90% non-condensing

Ingress Protection

IP30

Housing

Aluminum

Software

RutOS (based on OpenWRT), compatible with Teltonika RMS

Protocols Supported

DNP3, DLMS, Modbus, MQTT, HTTP(S), FTP, SNMP, VPN (IPsec, OpenVPN), SMS

Certifications

CE, UKCA, EAC, RoHS, WEEE