| Feature | Specification |
| Model | MM3-2FXM4/2TX1 |
| Ports | 2x ST Fiber, 2x RJ45 |
| Fiber Type | Multimode (100BASE-FX) |
| Distance | 5 km (50/125 µm) |
| Temp Range | 0°C to +60°C |
The Hirschmann MM3-2FXM4/2TX1 is a high-performance media module designed for the modular MICE switch series, offering a flexible combination of fiber optic and copper connectivity. By supporting hot-swapping and industrial-grade protocols, this module enables seamless network expansion and high-speed data transmission in demanding automation environments where EMI resistance is a priority.
Hirschmann – MM3-2FXM4/2TX1
Differences from Similar Models
The MM3-2FXM4/2TX1 is distinguished by its use of ST fiber connectors, whereas the very similar MM3-2FXM2/2TX1 utilizes SC connectors. Additionally, while some MM3 modules offer strictly fiber or strictly copper ports, this specific 2FXM4/2TX1 configuration provides a hybrid interface, allowing for long-distance backbone connections and local device patching within a single module slot. It is also designed for standard temperature ranges, unlike the “E” versions (Extended) which are rated for more extreme industrial climates.
Operational Tips
- Hot-Swapping: This module is hot-swappable; however, ensure the retaining screws are fully tightened to maintain the electrical ground path between the module and the MICE switch base.
- Fiber Care: Always keep the ST dust caps on the fiber ports when not in use, as even microscopic dust particles on the lens can cause significant signal attenuation in multimode transmissions.
- LED Status: Monitor the “P” (Power) LED on the module faceplate; if it remains dark while the base unit is on, reseat the module to ensure the backplane pins are correctly aligned.
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