The TG451 and TG452 combine a 4G router, a protocol gateway and I/O in one rugged box. They collect data from many field devices and send it to your platform, with a second SIM or module to keep the link up.
At a glance
- 4G LTE CAT 4 / 3G / 2G with dual SIM or dual module for failover or load balancing
- TG451: 1 RS232, 1 RS485, 5 Ethernet, USB, 2 DI, 2 relays, 2.4 GHz Wi-Fi
- TG452: 2 RS232, 3 RS485, 4 Ethernet, 2 DI, 2 relays, 2 analogue inputs, optional CAN, TF card, Wi-Fi and GNSS
- Built-in OS, programmable in Python or C/C++; Node-RED on TG452 (option)
- Modbus RTU/TCP, MQTT (TLS), JSON, TCP/UDP, VLAN (option); VPN, SNMP, SSH, CLI
Typical Applications
- Factories and plants connecting many meters and PLCs
- Water and wastewater pump stations
- Solar and energy sites needing a reliable link
- Building and HVAC controllers at remote locations
- Mobile and temporary sites such as construction
See it in use


How it works
The gateway polls your devices over RS232 or RS485, converts the data with built-in protocols or your own program, and sends it by 4G to your server or cloud. If one SIM or the mobile link fails, it switches to the backup, and a wired WAN failover is available as an option.
Order from AIBS
Ai Business Solutions Sdn Bhd supplies this product in Malaysia. Send us a quote request with the model, the quantity, the network (4G, 5G or LoRa) and the devices you want to connect, and we will reply within one working day.