Teltonika RS232 IoT Gateway | TRB142
SKU: 85236123945

Teltonika RS232 IoT Gateway | TRB142

$1190.46 $1322.73
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Description

Teltonika RS232 IoT Gateway | TRB142Bridge Legacy Systems to the IoT Era The Teltonika TRB142 is a compact, robust, and powerful industrial LTE Cat 1 gateway designed to connect your critical serial devices to the cellular network. This gateway is the perfect solution for modernizing legacy industrial equipment with an RS232 port, enabling remote monitoring, control, and data acquisition for a wide range of M2M and IoT applications. Its rugged aluminum housing and wide power supply

Bridge Legacy Systems to the IoT Era

The Teltonika TRB142 is a compact, robust, and powerful industrial LTE Cat 1 gateway designed to connect your critical serial devices to the cellular network. This gateway is the perfect solution for modernizing legacy industrial equipment with an RS232 port, enabling remote monitoring, control, and data acquisition for a wide range of M2M and IoT applications. Its rugged aluminum housing and wide power supply voltage range ensure reliable performance in demanding industrial environments.

Mission-Critical Connectivity & Performance

Equipped with 4G LTE Cat 1 connectivity, with fallback to 3G and 2G, the TRB142 ensures dependable and consistent data transfer for your mission-critical operations. At its core, a powerful ARM Cortex-A7 1.2 GHz processor and 128 MB of RAM deliver robust performance to handle complex tasks. The gateway runs on a Linux-based RutOS (based on OpenWrt), offering a high degree of customization and access to a wide array of software features, including advanced VPN services, a powerful firewall, and compatibility with Teltonika's Remote Management System (RMS) for streamlined device administration.

Advanced Features for Industrial Applications

The TRB142 is more than just a modem; it's a versatile tool for industrial communication. It supports a wide range of serial communication protocols like Modbus RTU Master, allowing it to interface directly with industrial sensors, PLCs, and other equipment. Advanced software features include SMS control, IPsec, OpenVPN, and support for various industrial protocols like DNP3 and OPC UA, making it a highly adaptable solution for sectors such as industrial automation, utilities, smart city infrastructure, and retail POS systems.


Mobile
Mobile Module 4G (LTE) – Cat 1 up to 10 Mbps, 3G – Up to 42 Mbps, 2G – Up to 236.8 kbps
SIM 1 x SIM slot (Mini SIM – 2FF), 1.8 V/3 V
Antenna Connector 1 x SMA for LTE
Status Signals Signal strength (RSSI), SINR, RSRP, RSRQ, EC/IO, RSCP, Bytes sent/received, connected band, IMSI, ICCID
Hardware
CPU ARM Cortex-A7, 1.2 GHz
RAM 128 MB, DDR2
Flash Storage 512 MB, SPI Flash
Physical Interfaces
RS232 1 x DB9 socket
Digital I/O 2 x Configurable Digital Inputs/Outputs on 4-pin power connector
USB 1 x Micro-USB B for virtual network interface
LEDs 3 x connection type status, 5 x connection strength, 1 x Power
Reset Reboot/User default reset/Factory reset button
Power
Connector 4-pin industrial DC power socket
Input Voltage Range 9 – 30 VDC, reverse polarity protection, surge protection
Power Consumption < 5 W
Software & Network
Operating System RutOS (OpenWrt based Linux OS)
Serial Communication Console, OverIP, Modem, MODBUS RTU master, MODBUS Gateway, NTRIP client
Network Protocols TCP, UDP, IPv4, IPv6, ICMP, NTP, DNS, HTTP, HTTPS, FTP, SMTP, SSL/TLS, ARP, PPP, DHCP, Telnet
VPN OpenVPN, IPsec, GRE, PPTP, L2TP, Stunnel, DMVPN, SSTP, ZeroTier, WireGuard, Tinc
Remote Management Teltonika Remote Management System (RMS), FOTA, SSH, CLI, SMS Utilities
Physical Specifications
Casing Material Aluminum housing
Dimensions (W x H x D) 74.5 x 25 x 64.4 mm
Weight 135 g
Mounting Options Bottom and sideways DIN rail, flat surface mounting
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 85236123945

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4.4 ★★★★★
Based on 1639 reviews
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Verified Purchase
FoxyVil
Whiting, US
★★★★★ 5
Great buy, especially in its price range and perhaps even beyond
Color: A-Silver
Hope not to jinx it and have to change this review in six months but I'm extremely pleased with this machine. I've gone through two DeLonghis that lasted me each 4-5 years and I've liked them a lot, but both have eventually leaked and had quirks that were never ever answered/remedied by their customer service. I bought this Casabrews on spec, after looking through all sorts of alternatives, even hand models. I read through customer reviews, including the negative ones complaining about noise, its weight (or, rather lack of), claims over shoddy materials (its plastic components), alleged issues with its wand and basket, the quality of its shots, and so on. I was concerned about buying a product from a relatively new company with a short track record. But, OTOH, there were some very positive, persuasive reviews online. I'm from a coffee-producing nation and have more of it in my veins than blood so it's an absolute daily must-have that an increasingly leaking DeLonghi wasn't going to provide for long so I was facing an emergency. That this model was on sale at Amazon was a welcome incentive since, by the same token that I know what I like in coffee and scoff at the pretentious, opinionated coffee snobishness that too often characterizes conversations over it in the US, I've never been persuaded by the fancy-schmancy high-end, pocket-gouging machines on the market. While I've only had it for several weeks, I'm delighted with it. It's way faster than my old DeLonghis. I love that I don't have to hover over it watching to make sure it doesn't overflow because it turns itself off--and while I'm perfectly happy with the amount I'm getting without tinkering with it, it's programmable for longer shots. It's relatively quieter--noise complaints are likely from new users of espresso machines unused to their noise. It is lighter than my old machines, but the good news is that the basket fit loosens with use and a light hand on top of it solves the issue. The quibble about the basket falling from the wand seems to be more, again, about unobservant users who don't notice their design and the notch that locks the basket in place. It's also a preferable design than the wire in the DeLonghis, which would get loose and end up in our countertop compost bin when shaking out the puck. I even prefer the wetter pucks of used coffee it produces because they're way easier to scoop out of the basket than the DeLonghi's rock hard ones (even bent one of my demitasse spoons once). And, most importantly, the coffee is ABSOLUTELY FINE, even preferable to what I'd been getting from my old machines. And, hey, if it happens to have a short life, I'll just return and revise my rating and review.
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Reviewed in the United States on June 6, 2026
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Verified Purchase
Michael V
West Palm Beach, US
★★★★★ 5
Buono...squisito!
Color: Sterling Silver, Color: Sterling Silver
Arrive and packaged very well. It is lightweight...unsure if it's metal or plastic finished to look like metal...my guess is that "parts" are the latter because the knob for the froth/steam is plastic. Nonetheless, it is well made. Moreover, the price point makes it clear it can't be a premium expresso machine. I realize this doesn't sound like a great review of this product but on the contrary it is meant to say that - it is a quality machine based in the price point. I read the manual and personalized the settings for me and I have very little critique. The 2 in 1 portafilter is quality...the water dispenser "top fill" function is good; no need to remove the unit. Frother unit works well...just wish it pulled out a little more...drip tray could be wider as it's a little difficult getting a wide-mouth cup in without taking out the main tray...not a real hassle though. All in all....it's a 9.5 in my opinion. Functions are great...easy to understand and makes a great expresso, americano, latte and variable of each 👍👍 Great deal for the price!
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Reviewed in the United States on June 3, 2026
R
Verified Purchase
Renee
Grantham, US
★★★★★ 5
Read the manual directions thoroughly to make the perfect cup.
Color: Sterling Silver
I’ve been using this machine daily for 9 weeks. I absolutely love it! It’s easy and delicious. It took about 90 minutes to thoroughly read the manual which was very helpful in making the perfect pressure crema. The machine quality is good. If it lasts several years I’ll rate it fantastic. That is tbd. It is a great value for the money and aesthetically pleasant sitting on the countertop. Love it!
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Reviewed in the United States on May 21, 2026
N
Verified Purchase
Neal
Fort Morgan, US
★★★★★ 5
Great value
Color: Sterling Silver
Nice machine. Makes great espresso and steam wand works well and heats up fast. Just wish the porta filter was made better with wire clip to hold basket in instead of groove and dimple setup. Used grinds cant be simply tapped out as a single puck. you need to dig them out with a spoon. Not the end of the world but I was spoiled with a Breville Ive used in the past. Still would definitely recommend great unit at this price point. Makes delicious coffee
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Reviewed in the United States on April 12, 2026
K
Verified Purchase
Kelly
West Palm Beach, US
★★★★★ 4
Time btwn brews
Color: Sterling Silver
Love the sleek look and just the right size for counter top. Makes a great cup and foaming wand is great. Be sure to let first stream of water out before frothing. Definitely need a napkin or towel handy. Only one drawback I can see so far. After making an espresso it takes a bit of time to cool down before it allows you to brew next one. There’s two of us so we need to stagger our espresso making. Espresso could also be a bit hotter. All in all it’s a nice machine and does the job.
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Reviewed in the United States on December 5, 2025

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