Wolf-2RS485
2 Independent RS-4852 independent RS-485 ports on a Linux platform — for multi-device Modbus networks, RS-485 to M-Bus conversion, and protocol bridging.
Why Wolf-2RS485
Two Independent Serial Buses
Each RS-485 port runs at its own baud rate and protocol settings. Connect devices on different serial networks through a single gateway — no external converters or splitters.
Protocol Conversion
Bridge RS-485 to M-Bus, or convert between Modbus RTU devices using different settings. Aggregate everything into one IT-friendly protocol.
Connect to Any Protocol
Talk to field devices over RS-485 Modbus RTU, and forward their data to your cloud or control system via MQTT, REST API, or Modbus TCP — over Ethernet or 4G/LTE. One unit links your field equipment to your software.
Key Specifications
| Parameter | Value |
|---|---|
| RS-485 Ports | 2 × independent |
| Communication | Modbus RTU, 300–115200 bps per port |
| Status LEDs | TX/RX per port |
| Power Supply | 9–30 V DC |
| Operating Temperature | −40 to +55 °C |
Use Cases
Multi-Device Modbus Network
Connect meters, inverters, and controllers on separate RS-485 buses — each at its own baud rate. Aggregate data via MQTT or Modbus TCP to your cloud platform.
RS-485 to M-Bus Conversion
Attach an external M-Bus converter on one RS-485 port and Modbus RTU devices on the other. Bridge both networks through a single gateway.
Protocol Bridging
Bridge two Modbus RTU networks with different baud rates and device profiles. Forward data between networks or translate to MQTT and TCP for cloud integration.
Full Specifications
Expansion Card
| Parameter | Value |
|---|---|
| RS-485 Ports | 2 × independent, each with SN65HVD1781DR transceiver |
| ESD Protection | ±15 kV HBM ESD per port |
| Bus Fault Protection | ±30 V bus fault per port |
| Termination | 120 Ω per port |
| Baud Rate | 300–115200 bps, independently configurable |
| Status LEDs | TX and RX indicator LEDs per port |
| Auto Detection | Onboard EEPROM for card-type identification |
Motherboard
| Parameter | Value |
|---|---|
| CPU | NUC980 ARM926EJ-S @ 300 MHz |
| Memory | 128 MB DDR II |
| Storage | 128 MB NAND Flash |
| Ethernet | 10/100 Mbps RJ45 |
| USB | Micro USB 2.0 (FW upgrade), USB 2.0 (1 A) |
| SD Card | Micro-SD slot with detection |
| SIM | Nano SIM (for LTE modem) |
| Mini PCIe | USB 2.0 — for 4G/LTE/NB-IoT/WiFi modules |
| Crypto | AES-256, RSA-2048, SHA-512, ECC-256, HMAC, RNG |
| RTC | Real-time clock (battery backup optional) |
| Sensors | Onboard PCB temperature, input voltage monitoring |
| Status LEDs | 2× programmable (heartbeat + user by default) |
Mechanical
| Parameter | Value |
|---|---|
| Mounting | DIN-rail |
| Dimensions | 126 × 79.4 × 32.7 mm |
| Weight | ~350 g |
| Operating Temperature | −40 to +55 °C |
| Storage Temperature | −40 to +75 °C |
| Humidity | 5–90 % (non-condensing) |
Power
| Parameter | Value |
|---|---|
| Input Range | 9–30 V DC |
| DC Jack | 2.1 / 5.5 mm |
| Average Power | 0.6 W @ 12 V DC |
| Reverse Voltage Protection | Yes |
Compliance & Security
Product security information is published per the EU Cyber Resilience Act (Regulation 2024/2847).
| Document | Audience | Format |
|---|---|---|
| Product Security Information (CRA-UI-001) | Standard Wolf Gateway firmware | PDF ↓ |
| Firmware Releases | Signed Wolf-OS / Wolf-App bundles | Index → |
Vulnerabilities → security@foxiot.eu. See the coordinated disclosure policy.
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Test Wolf-2RS485 Without Commitment
Shipped to qualified engineers and integrators across the EU. Test it in your project.