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Phone: +86 16626708626Description
Key Technical Specifications
- Port Configuration: 6× 10/100BaseTX RJ-45 copper ports, 2× 100BaseFX multimode fiber ports with ST connectors
- Fiber Distance Rating: 2 km, multimode
- Switching Type: Unmanaged, store-and-forward
- Power Input: 10 to 30 VDC, redundant power inputs
- Throughput: Up to 2.6 Gb/s switching capacity
- Operating Temperature: −40 °C to +85 °C
- Compliance: IEEE 802.3, CE, cUL, UL Class I Division 2 hazardous locations, EN 61000-6-2, EN 61000-6-4, EN 55011, RoHS
- MTBF: Greater than 2,000,000 hours
- Mounting: DIN rail standard; optional panel and rack mount kits
- Diagnostics: Bi-color LEDs for Link, Speed, Activity, and Duplex status
- Auto-Sensing: 10/100BaseTX speed, duplex, and MDIX auto-negotiation
Product Introduction
The Red Lion 508FX2-ST is an 8-port unmanaged industrial Ethernet switch from the N-Tron 500 Series, built to bridge copper and multimode fiber segments on plant-floor networks. Six 10/100BaseTX RJ-45 ports handle local device connections, while two 100BaseFX ST fiber ports extend the link up to 2 km — useful for runs between control cabinets where copper isn’t practical or EMI is a concern.
Plants pick this switch over commercial-grade alternatives because of the extended −40°C to +85°C rating, redundant DC power inputs, and DIN-rail form factor built for cabinet mounting rather than a rack room. The unmanaged design also means no configuration overhead — it’s a plug-and-play segment extender, not a device that needs network engineering to bring online.
508FX2-ST
508FX2-ST
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No link on any port, no power LED | Power supply failure or wiring fault | ✅ High | Measure 10–30 VDC at the terminal block with a multimeter | Verify power source before assuming switch failure |
| Copper ports work, fiber link down | Dirty/damaged fiber connector or wrong fiber type (single-mode cable on a multimode port) | ✅ High | Inspect ST connector end-face, confirm cable is multimode-rated | Clean connectors and confirm fiber type before replacing the switch |
| One copper port unresponsive, others fine | Bad cable, bad NIC on connected device, or single-port failure | ❌ Low | Swap the cable and test the same device on a working port | Isolate to the cable/device before blaming the switch |
| Intermittent link drops under vibration | Loose DIN-rail mounting or terminal block connection | ❌ Low | Check physical mounting and re-torque terminal block screws | Reseat power connections; this is rarely a switch-internal fault |
| All ports show link but no data passes | Misconfigured VLAN or duplex mismatch on connected managed equipment | ❌ Low | Check settings on the managed devices at each end of the link | Since this is unmanaged, the fault is almost always upstream |
If the fault persists after these checks, contact technical support with the LED status pattern observed, the exact port(s) affected, and your power supply reading.
Frequently Asked Questions (FAQ)
Is this the managed or unmanaged version?
Unmanaged. The plain “-ST” suffix (no “N” in the model number) is the base unmanaged switch — no IP configuration, no web interface, just plug-and-play switching. The N-View managed version is a separate part number, 508FX2-N-ST.
Can I mix single-mode and multimode fiber on this unit?
No. This unit’s fiber ports are multimode-rated for a 2 km run. Running single-mode fiber into a multimode port won’t couple properly and will give you an unreliable or dead link — match your fiber type to the port spec before troubleshooting anything else.
Does it support PoE on the copper ports?
No — this is a straight 10/100BaseTX switch with no Power over Ethernet capability on any port. If you need PoE for cameras or wireless access points, you’re looking at a different N-Tron or Red Lion model.
Can I hot-swap this on a live network segment?
Powering it down to replace it is standard practice, but the unit itself supports redundant power inputs specifically so a single power source failure doesn’t take the switch offline — that’s the built-in redundancy feature, not a hot-swap capability for the switch itself.
Why buy this over a commercial-grade unmanaged switch that costs less?
The −40°C to +85°C rating, DIN-rail industrial enclosure, and hazardous-location certification are the difference. A commercial switch in a hot control cabinet or a Class I Division 2 area is a liability; this unit is built and certified for that environment.
Is there a warranty on this unit?
Yes — as an actively produced part, it carries standard manufacturer warranty terms through Red Lion Controls. Confirm the specific warranty period with your supplier, since third-party resellers may apply their own coverage on top of or instead of the OEM warranty depending on how the unit was sourced.
What’s the easiest way to misdiagnose a problem with this switch?
Assuming a dead fiber link means the switch failed. In the field, a dirty ST connector end-face or the wrong fiber cable type causes more “dead” fiber ports than actual switch hardware failures. Clean and confirm the fiber before you condemn the unit.
