Teltonika TRB142 Industrial LTE to RS232 Serial Gateway, Cat 1

  • RS232 is an industry standard for serial communication.
  • Wide range of power supply voltages.
  • Compact size, easy integration.

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The Teltonika TRB142 3G/4G LTE Cat 1 Router is equipped with an RS232 Interface, Digital Inputs/Outputs and a micro-USB port. The compact design makes this Gateway perfect for applications where a sole device must be remotely controlled over the RS232 interface. The TRB142 is engineered to be used in industrial applications and has a wide range of software features such as SMS control, Firewall, OpenVPN, IPsec, RMS and FOTA support.

  • RS232 is an industry standard for serial communication.
  • LTE Cat 1 for M2M/IoT communications.
  • Wide range of power supply voltages.
  • Teltonika Remote Management System compatible.
  • OpenLinux based OS allows high software customisation.
  • Compact size, easy integration.

Add remote access and management with Teltonika Networks Remote Management System (RMS).

RMS is an all-in-one user-friendly IoT platform providing a smart way to stay on top of your whole connected solution completely remotely, securely, and reliably.

It is a powerful solution for remote access and management allowing users to save time and operational costs while being flexible and easy to use. With RMS you can manage compatible Teltonika Networks routers and gateways, reach remote devices, utilize the power of remote desktop access and configure secure VPN tunnels with just a few clicks.

Try it for free -



SIM slot

Mini SIM (2FF)
Antenna connector

1 x SMA for LTE

DB9 socket, 5 pin configuration with flow control, baud rate 300 - 115200

2 x Digital/Analogue Inputs/Outputs (configurable)

ARM Cortex-A7 1.2 GHz CPU

128 MBytes (50 Mbytes available for userspace)

512 MBytes (70 Mbytes available for userspace)
Input voltage range

9 - 30 VDC
Power connector

4 pin industrial DC power socket
Configuration interface

Virtual NIC via Micro-USB connector
LED Indicators

Power, signal, network and data status LEDs
Operating temperature

-40°C to 75°C

60 mm x 70 mm x 18 mm

157.5 g

Operating system

Linux OS with Yocto SDK (offering high software customisation)

NAT, Firewall (port forward, traffic rules, custom rules), DDNS ( >25 service providers supported)
RS232 related services

Modbus, Serial over IP, NTRIP
Remote management

RMS Support, FOTA support, SSH, CLI, SMS Utilities (status/configuration)
Status watchdogs

Ping reboot, periodic reboot
Additional features

Internet connectivity over USB virtual network interface

Package Contents

1 x TRB142 router
1 x PSU
1 x LTE antenna (magnetic mount, SMA male, 3m cable)
1 x Micro-USB cable (0.8 m)
1 x Hex key
1 x QSG (Quick Start Guide)