Application Scenarios
Picture a coastal refinery operating a Foxboro I/A Series DCS across a tank farm, a distillation unit, and a remote jetty loading shelter — three areas separated by several hundred meters of cable tray running alongside high-power VFD cabinets and switchgear. The site’s legacy copper control network has been producing intermittent CRC errors and periodic MSC-level resynchronizations between controllers whenever a large motor starts, a classic symptom of copper-induced EMI on long 100BASE-TX runs. Rather than re-architecting the entire control network, the instrumentation team deploys a Foxboro X440-G2-24fx-GE4 RH102AN in the main control room and a second unit in the tank-farm satellite cabinet, populating the 24 LC fiber ports with 100BASE-FX transceivers feeding each controller cabinet and the four SFP uplinks with single-mode gigabit modules for the inter-building links. Because all long-haul paths now travel on fiber through the X440-G2-24fx-GE4 RH102AN, the EMI-induced CRC errors vanish, controller resynchronizations stop, and the DCS network settles into the deterministic behavior that the I/A Series was designed for. The switch is addressing the exact pain point it was built for: *getting a Foxboro-supported, fiber-immune backbone into a plant that runs on legacy copper access*.
The same logic applies to offshore platforms, thermal power stations, water treatment plants, and continuous-process chemical facilities still running Foxboro I/A Series or Evo — wherever the control network needs a managed, all-fiber aggregation point backed by Foxboro-compatible firmware and redundant power, the X440-G2-24fx-GE4 RH102AN is the reference deployment.
Parameter
| Main Parameters | Value / Description |
|---|---|
| Product Model | X440-G2-24fx-GE4 RH102AN (Foxboro part number RH102AN; reference IN9752) |
| Manufacturer | Foxboro / Schneider Electric — based on Extreme Networks ExtremeSwitching X440-G2 |
| Product Category | Fully Managed Layer 2/3 Industrial Ethernet Switch (fiber access, 1U 19-inch rack-mount) |
| Operating System | Extreme Networks ExtremeXOS — resilient modular OS with single-IP stacking and role-based policy |
| Port Configuration | 24 × 100BASE-FX LC fiber ports (fixed) + 4 × 1GBASE-X SFP slots (unpopulated, hot-swappable) |
| Management Ports | 1 × RJ-45 serial console + 1 × 10/100/1000BASE-T out-of-band Ethernet management port |
| Redundant Power Interface | 2 × 7-pin RPS (redundant power supply) ports for external RPS modules |
| Switching Capacity | 12.8 Gbps non-blocking, forwarding rate 9.5 Mpps |
| Stacking | SummitStack-V — up to 8 switches per stack, 40 Gbps per unit using standard 10G cabling/optics |
| CPU / Memory | 64-bit MIPS 1 GHz single-core, 1 GB ECC DDR3 DRAM, 4 GB eMMC flash, 1.5 MB packet buffer |
| Power Input | 100–240 VAC, 50/60 Hz, IEC 320 C14 inlet; max consumption 65 W / 223 BTU/hr |
| Operating Temperature | 0 °C to +60 °C (extended-temperature model); storage −40 °C to +70 °C |
| Humidity / Altitude | 10–95 % RH non-condensing; up to 3,000 m operating altitude |
| Dimensions (H × W × D) | 44 × 441.5 × 254 mm (1.73 × 17.38 × 10.01 in.) — 1RU 19-inch rack-mount |
| Net Weight | 3.97 kg (8.66 lb) unpackaged |
| Acoustic Noise | 24.7 dB(A) bystander sound pressure — quiet enough for control-room cabinets |
| Compliance | UL 60950-1, CSA 22.2 No. 60950-1, EN 60950-1, CE, FCC Part 15 Class A, RoHS, EN/ETSI 300 019 |
| Standard Bundle | 24 × LC/MTRJ adapters, 4 × 100 m RJ-45 MGBIC copper modules, 2 × RPS modules, 2 × 1000BASE LX/LH LC transceivers (2 km MMF) |