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Eaton 9202-ETS-HN3 Firewall Module
Eaton 9202-ETS-HN3 Firewall Module
Manufacturer: EATON
Product No.: 9202-ETS-HN3
Product Type: Firewall Module
Product Origin: USA
Payment: T/T
Weight: 300g
Shipping port: Xiamen
Warranty: 12 months
Product Description
The Eaton 9202-ETS-HN3 is a Tofino industrial cybersecurity firewall module designed specifically for Modbus TCP networks. It provides protocol-aware, read-only enforcement that allows only safe Modbus function codes, such as read operations, to pass through while blocking all write or control commands. This ensures that PLCs, RTUs, and other Modbus-based field devices are protected from unauthorized configuration changes, malicious commands, and accidental write operations, while maintaining full monitoring and data acquisition capability. The module is widely used in power generation, oil and gas, water treatment, and critical infrastructure networks where deterministic control and cybersecurity are essential.
Specifications
| Parameter | Specification |
|---|---|
| Product Type | Industrial protocol-aware firewall module |
| Supported Protocol | Modbus TCP |
| Security Function | Read-only Modbus filtering (blocks all write and control functions) |
| Modbus Functions Allowed | Read Coils (01), Read Discrete Inputs (02), Read Holding Registers (03), Read Input Registers (04) |
| Modbus Functions Blocked | All write and diagnostic functions (05, 06, 15, 16, 08, etc.) |
| Ethernet Ports | 2 × 10/100Base-T (RJ-45) |
| Network Mode | Transparent inline (Layer-2) |
| Latency | < 1 ms (typical) |
| Throughput | 100 Mbps |
| Power Supply | 24 V DC (±20%) |
| Power Consumption | < 5 W |
| Mounting | DIN-rail |
| Operating Temperature | –40 °C to +70 °C |
| Storage Temperature | –40 °C to +85 °C |
| Relative Humidity | 5% to 95% non-condensing |
| Dimensions (approx.) | 107 × 96 × 35 mm |
| Weight (approx.) | 0.3 kg |
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