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Teltonika RUT142 RS232 Industrial Router
For teams working across industrial networks, the Teltonika RUT142 RS232 Industrial Router offers reliable serial-to-Ethernet connectivity with an aluminium chassis that is impact-resistant and dust-sealed to IP30 standards. It supports RS232 serial communication alongside dual 10/100 Mbps Ethernet ports, ideal for integrating legacy serial devices into modern wired and wireless networks. The device includes Wi-Fi 4 capability for wireless access and runs on RutOS, an OpenWrt-based system tailored for industrial protocols such as Modbus, DLMS, DNP3, and OPC UA, enhancing its deployment flexibility.
Designed to withstand industrial environmental conditions, the RUT142 operates between -40 6C and 75 6C and complies with stringent EMI and surge immunity standards, ensuring continuity despite electrical interference. Its DIN rail mounting and power supply options, including passive PoE and 9-30 VDC input with surge protection, simplify installation and power management. Remote management is facilitated through Teltonika RMS, allowing firmware updates and device monitoring. This combination of sealed durability, protocol support, and remote oversight makes the RUT142 a field-ready solution for bridging serial devices in demanding industrial applications.
RUT142 Features
- 2 x 10/100 Mbps Ethernet ports, Wi-Fi 4
- RS232 for serial communication
- Integrated DIN rail bracket and a 3-pin power connector
- Remote management, access & VPN services
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Product Type
Manufacturer
Certifications & Standards
Ruggedness
Mounting Format
Country Of Manufacture
Lithuania
Wireless mode
802.11b/g/n (Wi-Fi 4), Access Point (AP), Station (STA)
Wi-Fi security
WPA2-Enterprise - PEAP, WPA2-PSK, WPA-EAP, WPA-PSK, WPA3-SAE, WPA3-EAP, OWE; AES-CCMP, TKIP, Auto-cipher modes, client separation, EAP-TLS with PKCS#12 certificates, disable auto-reconnect
SSID/ESSID
ESSID stealth mode
Wi-Fi users
Up to 50 simultaneous connections
Wireless Connectivity Features
Wireless mesh (802.11s), fast roaming (802.11r), Relayd, BSS transition management (802.11v), radio resource measurement (802.11k)
Wireless MAC filter
Whitelist, blacklist
Wireless QR code generator
Once scanned, a user will automatically enter your network without needing to input login information.
WAN
1 x WAN port 10/100 Mbps, compliance with IEEE 802.3, IEEE 802.3u, 802.3az standards, supports auto MDI/MDIX crossover
LAN
1 x LAN ports, 10/100 Mbps, compliance with IEEE 802.3, IEEE 802.3u, 802.3az standards, supports auto MDI/MDIX crossover
Routing
Static routing, Dynamic routing (BGP, OSPF v2, RIP v1/v2, EIGRP, NHRP), Policy based 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, Wake On Lan (WOL)
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
Wi-Fi WAN, VRRP, Wired options, each of which can be used as an automatic Failover
Load balancing
Balance Internet traffic over multiple WAN connections
Hotspot
Captive portal (hotspot), internal/external Radius server, Radius MAC authentication, SMS authorisation, SSO authentication, internal/external landing page, walled garden, user scripts, URL parameters, user groups, individual user or group limitations, user management, 9 default customisable themes and optionality to upload and download customised hotspot themes
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
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
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)
Receive email message status alerts of various services
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)
Cumulocity - Cloud of Things
Allows monitoring of: Device Model, Revision and Serial Number, WAN Type and IP. 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
Mediatek, 580 MHz, MIPS 24KEc
RAM
128 MB, DDR2
FLASH storage
16 MB serial NOR 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++
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
Connector
3-pos plugable terminal block
Input voltage range
9-30 VDC, reverse polarity protection, surge protection >31 VDC 10us max
PoE (passive)
Passive PoE over spare pairs. Possibility to power up through LAN1 port, not compatible with IEEE802.3af, 802.3at and 802.3bt standards, Mode B, 9 - 30 VDC
Power consumption
Idle: < 1 W / Max: < 2 W
Ethernet
2 x RJ45 ports, 10/100 Mbps
Status LEDs
1 x WAN type LED, 1 x LAN type LED, 1 x Power LED
Power
1 x 3-pin power connector
Antennas
1 x RP-SMA for Wi-Fi
RS232
1 x DB9 socket
Reset
Reboot/User default reset/Factory reset button
Other
1 x Grounding screw
Casing material
Aluminium housing
Dimensions (W x H x D)
113.10 x 25 x 68.6 mm
Weight
149.2 g
Mounting options
Integrated DIN rail bracket, wall mount, flat surface (additional kit needed)
Operating temperature
-40 °C to 75 °C
Operating humidity
10% to 90% non-condensing
Ingress Protection Rating
IP30
Regulatory
CE, UKCA, RCM, FCC, IC, CB, WEEE, RoHS, REACH
Standards
EN 55032:2015 + A11:2020 + A1:2020EN 55035:2017 + A11:2020EN 301 489-1 V2.2.3EN 301 489-17 V3.2.4
ESD
EN 61000-4-2:2009
Radiated Immunity
EN IEC 61000-4-3:2020
EFT
EN 61000-4-4:2012
Surge immunity (Ethernet ports)
EN 61000-4-5:2014 +A1:2017
CS
EN 61000-4-6:2014
Standards
EN 300 328 V2.2.2
Standards
CE: EN 62368-1:2014 + A11:2017, EN IEC 62232:2017, EN 50385:2017RCM: AS/NZS 62368.1:2018CB: IEC 62368-1:2018
Standards
CE: EN IEC 62368-1:2020 + A11:2020, EN IEC 62311:2020, EN 50665:2017RCM: AS/NZS 62368.1:2022CB: IEC 62368-1:2018"}]
The Teltonika RUT142 RS232 Industrial Router is designed and engineered for use in demanding environments where reliability, durability are essential. The RUT142 supports a wide range of industries and operational applications.
Common deployment industries include: Construction, Energy and Utilities, Industrial Manufacturing, Marine And Offshore, Natural Resources and Mining, Oil and Gas, Rail And Transport, Security And Surveillance.
Across these sectors, the RUT142 is typically used in applications such as 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 RUT142 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 RUT142 is appropriate for your specific application, please contact us.
The Teltonika RUT142 RS232 Industrial Router 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 RUT142 RS232 Industrial Router, must be presented to RUGGED in the United Kingdom.
For more information about the Teltonika RUT142 RS232 Industrial Router 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 RUT142 RS232 Industrial Router, 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 RUT142 or need a custom Rugged Printer 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.
Our related solutions provide variations in configuration, functionality, and form factor to suit different application requirements. Each option has been selected to meet the same high standards of reliability and performance.
Browse the related products below to identify the most suitable fit for your deployment.
RUT142
- IP30 sealed aluminium casing
- Wide temperature range -40 °C to 75 °C
- Supports RS232 serial and dual Ethernet ports
- Runs RutOS with industrial protocol support

RUTM10
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RUTXR1
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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
Rugged Limited provides a selection of robust rugged printers that are built to withstand challenging conditions where standard printers would fail. These devices are engineered for durability, making them suitable for various industrial and field-based applications. These printers offer reliable performance for businesses needing to print labels, receipts, or other documents in harsh environments.
For further information on the specific models and their capabilities, exploring the dedicated rugged printer section on the Rugged Limited website is recommended.
Rugged Limited provides a comprehensive range of rugged printers designed for demanding environments. These industrial printer types are categorised primarily by their printing technology, with options including thermal transfer and direct thermal printers. Each type offers distinct advantages depending on the application and desired label longevity.
Rugged Limited’s selection of industrial printer types ensures that businesses can find a solution tailored to their specific operational requirements, from warehousing and logistics to manufacturing and retail.
Rugged Limited understands the diverse connectivity requirements of modern industrial and logistical environments. Many of their rugged printers are designed with flexibility in mind, offering multiple connection methods to seamlessly integrate into existing systems.
For situations requiring stable and fast network communication over a wider area, many Rugged printers come equipped with Ethernet ports. This allows for reliable data transfer and remote management within a local area network (LAN).
Alternatively, for direct connection to a single device such as a computer or a handheld terminal, USB connectivity is a common feature. This plug-and-play simplicity makes it easy to set up and use the printer for localised tasks. The availability of both Ethernet and USB options ensures that a Rugged printer can adapt to various deployment scenarios, making a versatile Ethernet USB printer solution.
When considering a rugged printer from Rugged Limited, it’s beneficial to review the specific product’s technical specifications to confirm the exact connectivity options available for your operational needs.
Yes, many modern printers, particularly those designed for professional and industrial use, are capable of being networked. A network printer can be integrated into an existing network infrastructure, enabling multiple computers and devices to access and utilise the same printing device. This functionality enhances efficiency and resource sharing within various operational environments.
Rugged Limited offers a range of printers with networking capabilities, ensuring seamless integration and reliable performance. These are designed to meet diverse printing needs, from logistics to manufacturing, providing robust solutions for businesses looking to optimise their printing operations. Explore the various options for your business needs by visiting our rugged printers section.
An industrial printer is specifically designed to operate in challenging conditions that would quickly degrade or destroy conventional printing equipment. These devices are built to resist factors such as extreme temperatures, dust, moisture, vibrations, and accidental drops, which are common in many industrial settings. This robust construction ensures continuous and dependable operation, minimising downtime and maintenance needs. Rugged Limited understands the demands of these environments, offering an industrial printer range that prioritises durability and consistent performance.
Key features often found in a rugged printer include:
- Durable Casings: Constructed from tough materials to protect internal components from impacts and environmental stressors.
- Environmental Sealing: Designed to be dustproof and waterproof, typically rated with an IP (Ingress Protection) standard.
- Shock and Vibration Resistance: Engineered to absorb shocks and vibrations, crucial for mobile or factory floor applications.
- Wide Operating Temperature Ranges: Capable of functioning effectively in both very hot and very cold conditions.
These characteristics make rugged printers essential for industries requiring reliable printing solutions in demanding operational areas, from logistics and manufacturing to field services.
Absolutely, industrial printers are built with durability and performance in mind, making them suitable for continuous operation and serving as a reliable 24/7 industrial printer. Unlike standard printers, they are engineered to withstand challenging conditions such as extreme temperatures, dust, and vibrations, ensuring consistent output without interruption.
Rugged Limited offers a range of industrial-grade printers specifically designed for these demanding applications. These robust devices are constructed with high-quality components that can endure prolonged use, minimising downtime and maximising productivity in critical operational settings. Their resilience means they can handle the continuous demands of various industries, making them an ideal choice when you need a dependable 24/7 industrial printer solution.
This continuous operational capability is crucial for businesses that require constant printing for tasks like labelling, ticketing, and data logging, where reliability is paramount. Rugged Limited’s industrial printers are designed to meet these rigorous demands, ensuring uninterrupted performance.
Printers are fundamental to modern logistics, playing a vital role in ensuring efficient and accurate operations from warehousing to delivery. A robust logistics printer is used to produce a wide array of necessary documents, including shipping labels, packing slips, invoices, and inventory barcodes. These printed materials are crucial for tracking goods, managing stock, and facilitating smooth handovers between different stages of the supply chain.
For instance, in a warehouse, printers are used to generate labels for incoming and outgoing packages, enabling quick identification and sorting. During transit, delivery drivers rely on printed manifests and delivery notes. The ability to print on demand, often in challenging environments, highlights the necessity for durable and reliable printing solutions in this sector.
Rugged Limited provides a range of rugged printers specifically designed to withstand the harsh conditions often encountered in logistics, ensuring consistent performance and minimising downtime. Investing in the right logistics printer helps businesses maintain operational efficiency, improve accuracy, and enhance overall productivity.
Industrial printers are specifically engineered to withstand harsh operating conditions, and this often includes robust dust resistance. Such printers are designed with sealed casings and durable components to prevent ingress of dust and other particulates that can cause damage to internal mechanisms and compromise print quality. This makes them highly reliable in environments like manufacturing facilities, warehouses, and construction sites where dust is prevalent.
A high-quality dust resistant printer ensures continuous operation and reduces downtime, leading to increased productivity and lower maintenance costs. Rugged Limited’s industrial printers are built to offer this level of resilience, providing dependable printing solutions even in the most demanding, dust-filled settings. This focus on durability ensures their longevity and performance in industrial applications.







