RS485/Modbus gateway
USR-DR134
Wired Ethernet gateway
Converts RS485/Modbus RTU to Ethernet, so equipment on your site reaches our IoT monitoring platform (or any Modbus/MQTT host) over a stable, always-on wired connection, streaming live telemetry. DIN-rail mount, hardware watchdog, −40…+85°C.
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Key features
- Transparent RS485/Modbus RTU to Ethernet conversion
- Modbus RTU/TCP gateway with polling and multi-host support
- Built-in MQTT client (up to 4 publish/subscribe topics)
- DIN-rail mount with a push-type power connector
- Hardware and software watchdog with auto-reconnect
- Wide operating range and ESD/surge protection for cabinet installs
Technical specifications
| Connectivity | 1× RJ45 (10/100 Mbps) + 1× RS485 |
|---|---|
| Protocols | Modbus RTU/TCP, MQTT, TCP/UDP/HTTP |
| Power supply | 5–24V DC, ~97mA @ 5V |
| Dimensions | 74×24×22 mm |
| Mounting | 35mm DIN-rail |
| Operating temperature | −40…+85°C |
| Reliability | Hardware & software watchdog, auto-reconnect, ESD/surge protected |
Full manufacturer specifications: pusr.com
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