Compatible gateway
USR-DR154-E
4G LTE Cat 1 gateway
Converts RS485/Modbus RTU to 4G LTE Cat 1 over a SIM card, for sites with no local internet at all. Lipstick-size industrial modem, hardware watchdog, −25…+75°C.
Sign up to order Manufacturer pageHow it connects
Key features
- RS485/Modbus RTU over 4G LTE Cat 1, via a SIM card
- LTE bands B1/3/5/7/8/20/28, external SMA antenna
- Modbus RTU to TCP gateway, plus MQTT/TCP/UDP/HTTP/SSL
- Heartbeat and registration packets for reliable reconnects
- Hardware and software watchdog protection
- Lipstick-size industrial modem, under 50g
Technical specifications
| Connectivity | 4G LTE Cat 1 (SIM) + 1× RS485 |
|---|---|
| Cellular bands | LTE FDD B1/3/5/7/8/20/28 |
| Protocols | Modbus RTU→TCP, MQTT, TCP/UDP/HTTP/SSL |
| Power supply | 5–24V DC, avg 0.8W, max 3.5W |
| Dimensions | 74×24×22 mm, under 50g |
| Operating temperature | −25…+75°C |
| Reliability | Heartbeat & registration packets, hardware & software watchdog |
Full manufacturer specifications: pusr.com
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