Tired of losing connection when your machines move outside the office? The Robustel R3000-4L is a rugged 4G/LTE router that keeps your data flowing no matter where you place it. It is built for industrial sites, remote farms, and mobile fleets that need a reliable link. If you have ever watched a dashboard freeze because the network dropped, this device is the answer.
Robustel R3000-4L, RobustOS 256MB Flash Industrial Dual-SIM 4G/LTE Router
Many industrial users struggle with unstable cellular links that cause downtime and lost productivity. In harsh environments, temperature swings, vibration, and power spikes can break cheap consumer routers. The R3000-4L solves this problem by offering dual-SIM support, magnetic isolation, and a hardened metal case that meets IP30 standards. It runs on RobustOS, giving you a stable firmware base and remote management tools. With two Ethernet ports, serial ports, and digital I/O, you can connect sensors, PLCs, and cameras without extra adapters. The router automatically switches to the stronger SIM, so you stay online even if one network fails.
Key Features
- ARM 400 MHz CPU with RobustOS firmware.
- 128 MB RAM and 256 MB flash storage.
- Dual Mini-SIM slots for carrier redundancy.
- Two SMA-K antennas (MAIN + DIV) for strong signal.
- 2 10/100 Mbps Ethernet ports (WAN/LAN).
- 2 RS-232 or RS-485 serial ports with RTS/CTS flow control.
- 2 digital inputs and 2 digital outputs with 3 kV isolation.
- Micro SD slot for local logging.
- USB 2.0 host up to 480 Mbps.
- IP30 metal housing, 570 g, DIN-rail, wall or desktop mount.
Specifications
| System Architecture |
|
| Operating System |
RobustOS |
| CPU |
ARM, 400 MHz |
| RAM |
128 MB |
| Flash |
256 MB |
| Cellular |
|
| Supported Technologies |
4G/LTE, 3G, 2G |
| Antennas |
2 (MAIN + DIV) |
| Connector |
SMA-K |
| SIM |
2 x Mini SIM (2FF) |
| Ethernet |
|
| Ethernet Ports |
2 x 10/100 Mbps – 1 x WAN + 1 LAN or 2 x LAN |
| Magnetic Isolation Protection |
1.5 kV |
| Serial Port |
|
| Serial Ports |
2 x RS-232 or 1 x RS-232 + 1 x RS-485 |
| Connector |
7-pin 3.5 mm female socket with lock |
| Baud Rate |
300 bps ~ 230400 bps |
| Flow Control |
RTS/CTS (for RS-232) |
| Bands |
4G LTE FDD: B1/2/3/4/5/7/8/12/13/18/19/20/25/26/28
4G LTE TDD: B38/39/40/41
3G: B1/2/4/5/6/8/19
2G: B2/3/5/8 |
| Certifications |
FCC, IC, UL,
PTCRB, AT&T,
Verizon, CE, UKCA,
SIRIM, E-Mark,
CB, TDRA, RCM |
| Digital Input/Output |
|
| DI/DO Ports |
2 x DI (dry contact) + 2 x DO (wet contact) |
| Connector |
7-pin 3.5 mm female socket with lock |
| Isolation |
3 kVDC or 2 kVrms |
| Absolute Maximum VDC |
DI: DC input voltage +5 V DC, DO: 30 V DC |
| Absolute Maximum ADC |
300 mA |
| Signal Definition |
DI+, DI-, DO+, DO- |
| GNSS/GPS (Optional) |
|
| GNSS Antennas |
1 |
| Connector |
SMA-K with 50 ohms impedance |
| Tracking Sensitivity |
-146 dBm |
| Horizontal Position |
< 2.5 m CEP50 |
| Protocol |
NMEA-0183 |
| Other Interfaces |
|
| Reset Button |
1 x RST |
| LED Indicators |
1 x RUN, 1 x PPP, 1 x USR, 1 x RSSI, 1 x NET, 1 x SIM |
| SD-Card |
1 x Micro SD |
| USB |
1 x USB 2.0 host, up to 480 Mbps |
| Watchdog |
Built-in |
| Power Supply & Consumption |
|
| PSU Connector |
3-pin 3.5 mm terminal block with lock |
| Input Voltage |
12/24/48 V DC, 9 ~ 60 V DC |
| Protection |
Reverse polarity protection, surge protection |
| Power Consumption |
Idle: 1.5 W @ 12 V, Max: 5 W @ 12 V |
| Recommended Power Supply |
12 V DC / 1.5 A power adapter |
| Physical Characteristics |
|
| Ingress Protection |
IP30 |
| Housing & Weight |
Metal, 570 g |
| Dimensions |
43.5 x 104 x 125 mm |
| Installation Options |
Desktop, Wall Mount and 35 mm DIN Rail |
| Environmental Limits |
|
| Operating Temperature |
-40 – +75 °C |
| Storage Temperature |
-40 – +85 °C |
| Relative Humidity |
5 – 95% RH (non-condensing) |
