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Teltonika TRB142 Industrial Rugged LTE RS232 Gateway
This product has reached End of Life (EOL) status and is no longer in production. Manufacturer support, updates, and spare parts may be discontinued.
All information is provided for reference only. Availability cannot be guaranteed.
Please contact us to discuss current alternatives or recommended replacement models.
The Teltonika TRB142 Industrial Rugged LTE RS232 Gateway is built around a reinforced aluminium housing, supporting field-ready deployment in industrial settings with temperature tolerance from -40 6C to 75 6C. Designed for continuous-duty operation, it provides LTE Cat 1 connectivity with fallback options for 3G and 2G networks, ensuring stable coverage in fluctuating conditions. Its RS232 interface allows seamless integration with legacy industrial equipment, ideal for remote monitoring and control applications. The device features IP30 ingress protection and vibration tolerance, enhancing reliability under physical and environmental stresses common to industrial sites.
Certified to meet CE, UKCA, and EAC standards, the TRB142 complies with electromagnetic compatibility requirements including EN 61000 and EN 301 series, demonstrating robust EMI resistance. It safeguards against power surges and reverse polarity for enhanced resilience. Security is reinforced through extensive VPN protocols and configurable firewall features, supporting secure data transmission in IoT deployments. With a compact design and support for multiple network protocols, the gateway delivers a secure, lifecycle-optimised solution tailored for industrial IoT connectivity.
TRB142 Features
- 4G/LTE (Cat 1), 3G, 2G
- Small size, easy installation
- Equipped with RS232 for serial communication
- Compatible with industrial DNP3 & Modbus communication protocols
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Product Type
Manufacturer
Certifications & Standards
Ruggedness
Mounting Format
Country Of Manufacture
Lithuania
Mobile module
4G LTE Cat 1 up to 10 DL/5 UL Mbps; 3G up to 384 DL/384 UL kbps; 2G up to 296 DL/236.8 UL kbps
3GPP Release
Release 12
Status
IMSI, ICCID, operator, operator state, data connection state, network type, bandwidth, connected band, signal strength (RSSI), SINR, RSRP, RSRQ, EC/IO, RSCP, data sent/received, LAC, TAC, cell ID, ARFCN, UARFCN, EARFCN, MCC, and MNC
SMS
SMS status, SMS configuration, send/read SMS via HTTP POST/GET, EMAIL to SMS, SMS to EMAIL, SMS to HTTP, SMS to SMS, scheduled SMS, SMS autoreply, SMPP
USSD
Supports sending and reading Unstructured Supplementary Service Data messages
Black/White list
Operator black/white list (by country or separate operators)
Multiple PDN
Possibility to use different PDNs for multiple network access and services
Band management
Band lock, Used band status display
SIM PIN code management
SIM PIN code management enables setting, changing, or disabling the SIM card's PIN
APN
Auto APN
Bridge
Direct connection (bridge) between mobile ISP and device on LAN
Passthrough
Gateway assigns its mobile WAN IP address to another device on LAN
Routing
Static routing
Network protocols
TCP, UDP, IPv4, IPv6, ICMP, NTP, DNS, HTTP, HTTPS, FTP, SMTP, SSL v3, TLS, ARP, VRRP, PPP, PPPoE, UPNP, SSH, DHCP, Telnet, SMPP, SNMP, MQTT
VoIP passthrough support
H.323 and SIP-alg protocol NAT helpers, allowing proper routing of VoIP packets
Connection monitoring
Ping Reboot, Wget Reboot, Periodic Reboot, LCP and ICMP for link inspection
Firewall
Port forward, traffic rules, custom rules
Firewall status page
View all your Firewall statistics, rules, and rule counters
Ports management
View device ports, enable and disable each of them, turn auto-configuration on or off, change their transmission speed, and so on
Network topology
Visual representation of your network, showing which devices are connected to which other devices
DHCP
Static and dynamic IP allocation, DHCP relay, DHCP server configuration, status, static leases: MAC with wildcards
QoS / Smart Queue Management (SQM)
Traffic priority queuing by source/destination, service, protocol or port, WMM, 802.11e
DDNS
Supported >25 service providers, others can be configured manually
DNS over HTTPS
DNS over HTTPS proxy enables secure DNS resolution by routing DNS queries over HTTPS
Network backup
Mobile, VRRP, Wired options, each of which can be used as an automatic Failover
SSHFS
Possibility to mount remote file system via SSH protocol
Authentication
Pre-shared key, digital certificates, X.509 certificates, TACACS+, Internal & External RADIUS users authentication, IP & login attempts block, time-based login blocking, built-in random password generator
Firewall
Pre-configured firewall rules can be enabled via WebUI, unlimited firewall configuration via CLI; DMZ; NAT; NAT-T
Attack prevention
DDOS prevention (SYN flood protection, SSH attack prevention, HTTP/HTTPS attack prevention), port scan prevention (SYN-FIN, SYN-RST, X-mas, NULL flags, FIN scan attacks)
VLAN
Port and tag-based VLAN separation
Mobile quota control
Mobile data limit, customizable period, start time, warning limit, phone number
WEB filter
Blacklist for blocking out unwanted websites, Whitelist for specifying allowed sites only
Access control
Flexible access control of SSH, Web interface, CLI and Telnet
SSL certificate generation
Let's encrypt support
OpenVPN
Multiple clients and a server can run simultaneously, 27 encryption methods
OpenVPN Encryption
DES-CBC 64, RC2-CBC 128, DES-EDE-CBC 128, DES-EDE3-CBC 192, DESX-CBC 192, BF-CBC 128, RC2-40-CBC 40, CAST5-CBC 128, RC2-64-CBC 64, AES-128-CBC 128, AES-128-CFB 128, AES-128-CFB1 128, AES-128-CFB8 128, AES-128-OFB 128, AES-128-GCM 128, AES-192-CFB 192, AES-192-CFB1 192, AES-192-CFB8 192, AES-192-OFB 192, AES-192-CBC 192, AES-192-GCM 192, AES-256-GCM 256, AES-256-CFB 256, AES-256-CFB1 256, AES-256-CFB8 256, AES-256-OFB 256, AES-256-CBC 256
IPsec
XFRM, IKEv1, IKEv2, with 14 encryption methods for IPsec (3DES, DES, AES128, AES192, AES256, AES128GCM8, AES192GCM8, AES256GCM8, AES128GCM12, AES192GCM12, AES256GCM12, AES128GCM16, AES192GCM16, AES256GCM16)
GRE
GRE tunnel, GRE tunnel over IPsec support
PPTP, L2TP
Client/Server instances can run simultaneously, L2TPv3, L2TP over IPsec support
Stunnel
Proxy designed to add TLS encryption functionality to existing clients and servers without any changes in the program’s code
DMVPN
Method of building scalable IPsec VPNs
SSTP
SSTP client instance support
ZeroTier
ZeroTier VPN client support
WireGuard
WireGuard VPN client and server support
Tinc
Tinc offers encryption, authentication and compression in it's tunnels. Client and server support.
Supported modes
Client, Server
Supported connection types
TCP
Supported modes
Server, Client
Supported connection types
TCP, RTU(RS232)
Custom registers
MODBUS TCP custom register block requests, which read/write to a file inside the router, and can be used to extend MODBUS TCP Client functionality
Supported data formats
8-bit: INT, UINT; 16-bit: INT, UINT (MSB or LSB first); 32-bit: float, INT, UINT (ABCD (big-endian), DCBA (little-endian), CDAB, BADC), HEX, ASCII
Protocol
HTTP(S), MQTT, Azure MQTT, Kinesis
Data to server
Extract parameters from multiple sources and different protocols, and send them all to a single server; Custom LUA scripting, allowing scripts to utilize the router's Data to server feature
Modbus MQTT Gateway
Allows sending commands and receiving data from MODBUS Server through MQTT broker
Supported modes
Station, Outstation
Supported connection
TCP, RTU(RS232)
DLMS Support
DLMS - standard protocol for utility meter data exchange
Supported modes
Client
Supported connection types
TCP, RTU(RS232)
Teltonika Networks Web API (beta) support
Expand your device's possibilities by using a set of configurable API endpoints to retrieve or change data. For more information, please refer to this documentation: https://developers.teltonika-networks.com
WEB UI
HTTP/HTTPS, status, configuration, FW update, CLI, troubleshoot, multiple event log servers, firmware update availability notifications, event log, system log, kernel log, Internet status
FOTA
Firmware update from server, automatic notification
SSH
SSH (v1, v2)
SMS
SMS status, SMS configuration, send/read SMS via HTTP POST/GET
Call
Reboot, Status, Mobile data on/off, Output on/off, answer/hang-up with a timer
TR-069
OpenACS, EasyCwmp, ACSLite, tGem, LibreACS, GenieACS, FreeACS, LibCWMP, Friendly tech, AVSystem
MQTT
MQTT Broker, MQTT publisher
SNMP
SNMP (v1, v2, v3), SNMP Trap, Brute force protection
JSON-RPC
Management API over HTTP/HTTPS
RMS
Teltonika Remote Management System (RMS)
ThingWorx
Allows monitoring of: WAN Type, WAN IP, Mobile Operator Name, Mobile Signal Strength, Mobile Network Type
Cumulocity - Cloud of Things
Allows monitoring of: Device Model, Revision and Serial Number, WAN Type and IP, Mobile Cell ID, ICCID, IMEI, Connection Type, Operator, Signal Strength. Has reboot and firmware upgrade actions.
Azure IoT Hub
Can be configured with Data to Server to send all the available parameters to the cloud. Has Direct method support which allows to execute RutOS API calls on the IoT Hub. Also has Plug and Play integration with Device Provisioning Service that allows zero-touch device provisioning to IoT Hubs
CPU
ARM Cortex-A7 1.2 GHz
RAM
128 MB, DDR2
FLASH storage
512 MB, SPI Flash
WEB UI
Update FW from file, check FW on server, configuration profiles, configuration backup
FOTA
Update FW
RMS
Update FW/configuration for multiple devices at once
Keep settings
Update FW without losing current configuration
Factory settings reset
A full factory reset restores all system settings, including the IP address, PIN, and user data to the default manufacturer's configuration
Operating system
RutOS (OpenWrt based Linux OS)
Supported languages
Busybox shell, Lua, C, C++, and Python in Package manager
Development tools
SDK package with build environment provided
GPL customization
You can create your own custom, branded firmware and web page application by changing colours, logos, and other elements in our firmware to fit your or your clients’ needs
Package Manager
The Package Manager is a service used to install additional software on the device
Configurable I/O
2 x Configurable Inputs/Outputs. Digital input 0 - 5 V detected as logic low, 8 - 30 V detected as logic high. Open collectorConfigurable I/O output, max output 30 V, 300 mA. Configurable Inputs/Outputs are not available in TRB142*2****
Output control
HTTP POST/GET, Schedule
Events
Email, RMS, SMS
I/O juggler
Allows to set certain I/O conditions to initiate event
Connector
4-pin industrial DC power socket
Input voltage range
9 – 30 VDC, reverse polarity protection; surge protection >31 VDC 10us max
Power consumption
< 5 W
I/O’s
2 x Configurable I/O pins on 4 pin power connector (I/O not available in TRB142*2****)
Status LEDs
3 x connection type status LEDs, 5 x connection strength LEDs, 1 x Power LED
SIM
1 x SIM slot (Mini SIM – 2FF), 1.8 V/3 V
Power
1 x 4-pin power connector
Antennas
1 x SMA for LTE
USB
1 x Virtual network interface via micro USB
RS232
1 x DB9 socket
Reset
Reboot/User default reset/Factory reset button
Casing material
Aluminium housing
Dimensions (W x H x D)
74.5 x 25 x 64.4 mm
Weight
135 g
Mounting options
DIN rail, wall mount, flat surface (all require additional kit)
Operating temperature
-40 °C to 75 °C
Operating humidity
10% to 90% non-condensing
Ingress Protection Rating
IP30
Regulatory
CE, UKCA, EAC, UCRF, ANRT, Kenya, ICASA, Anatel, Arcotel, NOM, RCM, Giteki, NTC, SRRC, NAL, NBTC, CB
Operator
Deutsche Telekom AG
Standards
Draft EN 301 489-1 V2.2.0Draft EN 301 489-52 V1.1.0
ESD
EN 61000-4-2:2009
Radiated Immunity
EN IEC 61000-4-3:2006 + A1:2008 + A2:2010
EFT
EN 61000-4-4:2012
Surge Immunity (AC Mains Power Port)
EN 61000-4-5:2014
CS
EN 61000-4-6:2014
DIP
EN 61000-4-11:2004
Standards
EN 301 511 V12.5.1EN 301 908-1 V13.1.1EN 301 908-2 V13.1.1EN 301 908-13 V13.1.1
Standards
CE: EN 62368-1:2014 + A11:2017, EN IEC 62232:2020, EN 50385:2017UL/CSA Safety: UL 62368-1 (3rd Ed., Rev. December 13, 2019),CAN/CSA C22.2 No. 62368-1:19 (3rd Ed., Rev. December 13, 2019)RCM: AS/NZS 62368.1:2018CB: IEC 62368-1:2018"}]
The Teltonika TRB142 Industrial Rugged LTE RS232 Gateway is designed and engineered for use in demanding environments where reliability, durability are essential. The TRB142 supports a wide range of industries and operational applications.
Common deployment industries include: Construction, Energy and Utilities, Industrial Manufacturing, Logistics And Supply Chain, Marine And Offshore, Natural Resources and Mining, Oil and Gas, Rail And Transport.
Across these sectors, the TRB142 is typically used in applications such as Environmental Monitoring And Data Logging, Fleet Management And Telematics, Industrial HMI And Machine Interfacing, Preventive And Corrective Maintenance, Process Control And Shop-Floor Monitoring, SCADA And Control-Room Access, Secure Communications And Command-And-Control, Utilities Inspection And Meter Reading.
These examples demonstrate the versatility of the TRB142 across both industry sectors and real-world operational use cases. Its suitability extends well beyond the scenarios listed above, making it a flexible solution for a broad range of requirements.
For further information, or to assess whether the TRB142 is appropriate for your specific application, please contact us.
The Teltonika TRB142 Industrial Rugged LTE RS232 Gateway comes with a 24 Month Limited Warrany against defects in workmanship and materials, effective from the date of shipment (unless otherwise agreed in writing).
To receive service under this warranty, the eligible product, Teltonika TRB142 Industrial Rugged LTE RS232 Gateway, must be presented to RUGGED in the United Kingdom.
For more information about the Teltonika TRB142 Industrial Rugged LTE RS232 Gateway or to arrange repairs and services not covered by the warranty, please visit the warranty section on our website.
Do you need further details about the Teltonika TRB142 Industrial Rugged LTE RS232 Gateway, or would you like to discuss a customised solution or demonstration?
At RUGGED, we recognise that every project has its own unique demands. If you have any questions about the Teltonika TRB142 or need a custom Rugged Gateway solution designed specifically for you, our team of technical experts are ready to assist you.
Alternative Products
Explore alternative products offering comparable features, performance, and build quality to the model you are currently viewing.
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Browse the related products below to identify the most suitable fit for your deployment.
TRB142
- Reinforced aluminium housing
- LTE Cat 1 with 3G/2G fallback
- IP30 ingress protection and vibration tolerance
- Extensive VPN and firewall security

TRB246
- Dual SIM auto-switch for network resilience
- Aluminium dust-sealed IP30 casing
- Supports Modbus DLMS and DNP3 protocols
- Advanced VPN and firewall security

TRB145
- IP30 rated aluminium housing
- -40 °C to 75 °C operational range
- MIL-STD shock and vibration resistance
- Integrated LTE Cat 1 with RS485 interface

TRB256
- Dual SIM with auto-switching
- Wide temperature range -40 °C to 75 °C
- IP30-rated industrial aluminium housing
- Multiple WAN interfaces RS232 RS485 Ethernet

Having trouble finding what you're looking for?
Selecting the correct solution for your specific application and operating environment requires careful consideration.
At Rugged, our engineering and product specialists can advise on specifications, environmental suitability, mounting requirements, connectivity, and lifecycle planning to ensure the right fit for your deployment.
With extensive industry experience and a focus on reliability and performance, we help you select a solution aligned with your operational requirements.
Frequently Asked Questions
RUGGED offers free technical support for the lifetime of products you purchase. This includes help with setup, troubleshooting, and integration. Support is available online or directly from the technical team
Ensuring a secure gateway is paramount for protecting industrial and commercial networks from unauthorised access and cyber threats. Rugged Limited’s gateways are designed with comprehensive security measures to maintain the integrity and confidentiality of your data.
Our secure gateway devices often come equipped with features such as:
- Firewall Protection: To filter network traffic and prevent malicious packets from entering the system.
- VPN Capabilities: For creating secure, encrypted connections over public networks, ensuring data privacy.
- Robust Authentication: To verify the identity of users and devices attempting to access the network.
- Data Encryption: To scramble data, making it unreadable to anyone without the correct decryption key.
By implementing these security protocols, Rugged Limited’s secure gateway solutions help businesses establish a fortified perimeter around their operational technology and IT infrastructure, critical for maintaining reliable and safe operations.
Various Gateway Industries leverage rugged gateway solutions to maintain critical operations. These include sectors such as transportation, where gateways facilitate communication between vehicles and central systems, and in construction, enabling real-time data exchange from remote sites. Manufacturing facilities also greatly benefit, using gateways for automation and machine-to-machine communication, while the energy sector employs them for monitoring and managing infrastructure in harsh conditions.
Rugged Limited provides gateway solutions designed to withstand extreme temperatures, vibrations, and moisture, making them ideal for these demanding environments. Our gateways ensure secure and stable network connections, crucial for data acquisition, surveillance, and operational efficiency across a multitude of Gateway Industries. For more information on how durable connectivity solutions can benefit your sector, explore our range of products.
A network gateway acts as a critical intermediary in communication, translating data between networks that utilise different protocols. This ensures that devices on separate networks can communicate effectively despite their differing architectural rules. For instance, a gateway might translate data from a local area network (LAN) into a format that can be understood by a wide area network (WAN).
Rugged Limited provides a wide array of connectivity solutions, including various types of gateways that facilitate this essential function. These gateways can also perform other vital roles, such as serving as protocol translators, impedance matching devices, and even rate converters, all contributing to the smooth flow of information. This comprehensive functionality is key to understanding how network gateways work in complex network environments, enabling diverse systems to operate as a cohesive unit.
Gateways play a crucial role in modern connectivity by acting as an intermediary to translate and route data between disparate systems. This functionality is vital for many gateway applications, particularly in environments where different communication standards need to coexist.
For example, in industrial settings, gateways can integrate legacy equipment that uses older serial communication protocols with newer IP-based networks, enabling centralised monitoring and control. They are also essential in IoT deployments, allowing diverse sensors and devices to connect to cloud platforms for data aggregation and analysis.
Rugged Limited provides a range of solutions that leverage gateways to facilitate robust and reliable communication. Whether it’s connecting remote assets, managing complex industrial processes, or enabling smart infrastructure, gateways are fundamental to ensuring seamless data flow and operational efficiency. Explore how Rugged Limited can enhance your connectivity solutions with advanced gateway technology.
Yes, many gateways offered by Rugged Limited are specifically designed to support cellular connectivity. These devices act as a cellular gateway, enabling seamless communication and data transfer in environments where traditional wired connections may not be feasible or reliable. Our range includes solutions for various cellular standards, ensuring compatibility and high performance across different networks.
Rugged Limited provides gateways that leverage cellular technology to offer dependable internet access and machine-to-machine (M2M) communication. This capability is crucial for applications requiring constant connectivity, remote monitoring, and data logging in challenging industrial or outdoor settings. By incorporating cellular modules, these gateways ensure your systems remain connected and operational, even in distributed or mobile deployments.
Gateways are indeed a crucial element in modern IoT applications, playing a vital role in connecting various IoT devices to the wider network and cloud platforms. At Rugged, we understand that an IoT Gateway serves as an intermediary, collecting data from sensors and other edge devices before transmitting it for further processing, analysis, or storage.
This functionality is particularly important in environments where numerous devices generate vast amounts of data, as the IoT gateway can perform initial data filtering and aggregation, reducing the bandwidth required for transmission and streamlining the overall data flow. This ensures efficient and reliable operation of IoT systems across diverse applications.
Gateways play a crucial role in edge computing environments, acting as the bridge between local devices and the wider network. When specifically designed for this purpose, an Edge Gateway can collect, filter, and process data directly at the edge, reducing latency and bandwidth usage. This capability is essential for applications requiring real-time insights and automated responses.
Rugged Limited provides industrial computing solutions that are ideal for these demanding edge computing applications. Our range of fanless embedded computers can serve as robust and reliable edge gateways, offering resilient connectivity and powerful processing in harsh environments.
These industrial PCs are engineered to operate dependably in places where traditional IT equipment cannot, making them perfect for deploying an Edge Gateway in factories, remote sites, or vehicles. For more information on how our industrial solutions can enhance your network capabilities, explore our connectivity options.
A network gateway serves as a vital intermediary, enabling communication between networks that use different communication protocols. This means it can translate data between these distinct systems, allowing them to exchange information effectively.
For instance, a gateway might connect a local area network (LAN) to a wide area network (WAN), such as the internet. Without a robust network gateway, devices within one network would be unable to communicate with devices in another, hindering essential data exchange and connectivity. Rugged Limited understands the importance of reliable connectivity solutions for seamless data flow, and the role of efficient gateways in achieving this.
To explore more about network infrastructure and connectivity solutions, visit our connectivity page.






