The TR-400 Series targets industrial sites that need 4G/5G, Gigabit Ethernet, Wi-Fi 6 and serial connectivity. The four models mainly differ in cellular generation and Ethernet port count, so selection should begin with device quantity, bandwidth and redundancy.
Key Takeaways
- TR-424/444 are 4G, while TR-425/445 are 5G
- 424/425 provide 2 LAN + 1 WAN; 444/445 provide 4 LAN + 1 WAN
- The series includes Wi-Fi 6 AX3000 and 2×RS485 + 1×RS232
Why Do Buyers Search for This Topic?
The TR-400 Series targets industrial sites that need 4G/5G, Gigabit Ethernet, Wi-Fi 6 and serial connectivity. The four models mainly differ in cellular generation and Ethernet port count, so selection should begin with device quantity, bandwidth and redundancy. In a real project, tr-424/444 are 4g, while tr-425/445 are 5g and 424/425 provide 2 lan + 1 wan; 444/445 provide 4 lan + 1 wan must be considered in the same architecture. Begin with the workload, field devices and operating model rather than one marketing specification.
Core Operating Mechanism
A practical sequence is to confirm country and carrier and 4g or 5g requirement, then verify lan/wan count and serial-device count, and finally test the series includes wi-fi 6 ax3000 and 2×rs485 + 1×rs232 with the real equipment. Record pass criteria so the design can be repeated across sites.
Limits to Understand Before Selection
Do not infer capability from the model number alone or assume every firmware, VPN option and regional band set is identical. Public content and project documents should therefore state model, firmware, regional network, options and environmental conditions and avoid unverifiable claims such as 'works for every project' or 'absolute reliability'.
How Tespro Fits
Tespro TR-400 Series includes TR-424, TR-444, TR-425 and TR-445 for automation, energy, buildings, distributed sites and unattended assets. Confirm regional bands, functions and certifications from the current datasheet.
Decision and Verification Table
| Decision factor | What to verify |
| TR-424/444 are 4G, while TR-425/445 are 5G | Confirm against country and carrier and document pass/fail criteria in the pilot or site test. |
| 424/425 provide 2 LAN + 1 WAN; 444/445 provide 4 LAN + 1 WAN | Confirm against 4g or 5g requirement and document pass/fail criteria in the pilot or site test. |
| The series includes Wi-Fi 6 AX3000 and 2×RS485 + 1×RS232 | Confirm against lan/wan count and document pass/fail criteria in the pilot or site test. |
Compatibility and Selection Checklist
- ✓ Country and carrier
- ✓ 4G or 5G requirement
- ✓ LAN/WAN count
- ✓ Serial-device count
- ✓ VPN and remote-management needs
- ✓ Temperature and power
Frequently Asked Questions
Q: What is the main difference among the four TR-400 models?
A: The main differences are 4G versus 5G and three-port versus five-port Gigabit Ethernet.
Q: Do all models use the same serial interfaces?
A: Series material lists 2×RS485 and 1×RS232, but verify the current approved datasheet before publication.
Q: Can TR-400 replace an industrial gateway?
A: It is primarily an industrial router for networking, VPN and remote access; complex protocol parsing and edge processing should be evaluated with a TG gateway.
