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Explainer
What Is Profinet
What is PROFINET? PROFINET (Process Field Network) is an open industrial Ethernet standard for real-time communication between programmable logic controllers…
Networking
Serial and Modbus
RS232, RS485 and Modbus connections for industrial equipment such as meters, PLCs and controllers.
Products for Serial and Modbus
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Teltonika TRB140 Industrial Rugged 4G/LTE CAT4 Gateway
The Teltonika TRB140 is an industrial 4G IoT gateway with 4G LTE Cat 4, one gigabit Ethernet port and digital I/O.
£117.50 ex VAT£141.00 inc VAT Add to basket -
Teltonika TRB246 Industrial IoT Gateway
The Teltonika TRB246 is an industrial 4G IoT gateway with 4G LTE, two SIM slots, one Ethernet port, RS232 and RS485 serial, GNSS positioning and digital I/O.
£135.00 ex VAT£162.00 inc VAT Add to basket -
Teltonika TRB500 5G Gateway
Teltonika TRB500 5G Gateway for IoT / M2M connectivity.
End of life See the replacement -
Teltonika TRM500 5G Modem USB-C
The Teltonika TRM500 is a 5G USB modem with 5G (up to 3.4Gbps download, 4G fallback).
£259.00 ex VAT£310.80 inc VAT Add to basket -
Teltonika TRB501 Industrial 5G Gateway
The Teltonika TRB501 is an industrial 5G IoT gateway with 5G (up to 3.4Gbps download, 4G fallback), one gigabit Ethernet port and digital I/O.
£347.50 ex VAT£417.00 inc VAT Add to basket -
Teltonika TRB160 4G LTE CAT 6 IoT Gateway
The Teltonika TRB160 is an industrial 4G IoT gateway with 4G LTE Cat 6, one gigabit Ethernet port and digital I/O.
£150.00 ex VAT£180.00 inc VAT Read more -
Sale!
Amit IDG450 IoT 5G Gateway
Amit IDG450 is a compact cellular IoT 5G Gateway providing high speed, reliable and secure 4G or 5G connectivity with a single 2.5GB Ethernet LAN port. This versatile 4G / 5G gateway…
£325.00£299.00 ex VAT£358.80 inc VAT Read more -
Milesight UR41 4G Cat 4 Mini Industrial Router with GPS
The Milesight UR41 (UR41-L08EU) is a compact low-power 4G router from Milesight's Mini series: LTE Cat 4, 1 x 10/100 Mbps Ethernet LAN and serial.
£117.00 ex VAT£140.40 inc VAT Add to basket -
Teltonika TRB141 Rugged GPIO LTE 4G Gateway (CAT 1 LTE)
The Teltonika TRB141 is an industrial 4G IoT gateway with 4G LTE Cat 1 and digital I/O.
£131.00 ex VAT£157.20 inc VAT Add to basket -
Teltonika TRB142 RS232 CAT1 LTE 4G Gateway
The Teltonika TRB142 is an industrial 4G IoT gateway with 4G LTE Cat 1, RS232 serial and digital I/O.
£112.00 ex VAT£134.40 inc VAT Add to basket -
Teltonika TRB256 4G/LTE Cat M1/Cat NB1, NB2/EGPRS 450Mhz Gateway
The Teltonika TRB256 is an industrial LTE-M and NB-IoT gateway with two SIM slots, one Ethernet port, RS232 and RS485 serial, GNSS positioning and digital I/O.
£125.00 ex VAT£150.00 inc VAT Add to basket -
Teltonika TRB145 RS485 CAT1 LTE 4G Gateway
The Teltonika TRB145 is an industrial 4G IoT gateway with 4G LTE Cat 1, RS485 serial and digital I/O.
£113.00 ex VAT£135.60 inc VAT Add to basket
What it is
Much industrial equipment still talks over serial links. Modbus RTU runs over RS485; Modbus TCP runs over Ethernet. Teltonika routers and gateways can read Modbus devices, act as serial-to-IP converters and send data to servers using MQTT or HTTP.
Where it fits
- Meters and energy monitoring
- PLCs and building management systems
- Legacy equipment without Ethernet
What to look for
- RS232 or RS485, and the right connector
- Modbus master or gateway role
- Where the data needs to go
See the Teltonika TRB246 and RUT956, and read MQTT on Teltonika devices and what Profinet is.
Part of our networking hub. You will find the products we sell for this below, along with our explainers. If you are planning more than a handful of sites, talk to us before you buy: getting the router, antenna and SIM right first time saves site visits later.
Talk to an M2M and IoT connectivity specialist. Not sure which technology fits your project? Tell us what you need to connect and where, and our UK team will recommend the router, antenna and SIM, with pre-sales advice, after-sales technical support and a range of configuration options.
Questions
Can a Teltonika gateway read Modbus meters?
Yes. Gateways such as the TRB246 can poll Modbus devices and forward the readings.
In the glossary: ModbusSerial (RS232 and RS485)
Guides and case studies
Explainer
What Is MQTT And Which Teltonika Devices Support It
What is MQTT? MQTT (Message Queuing Telemetry Transport) is a lightweight publish-subscribe messaging protocol built on top of TCP/IP. It…