Rugged 100Base-FX 1310nm 2km SFP Optical Transceiver Module for Industrial Ethernet

This rugged 100Base-FX SFP optical transceiver module is built for engineers who need a stable Fast Ethernet optical link where commercial optics quietly fail. It carries 100 Mbps traffic at a 1310nm wavelength over duplex multi-mode fiber across spans of up to 2km, using the standard MSA SFP cage and a duplex LC interface, so it drops into the same slot as the module it replaces.

The unit is a third-party compatible alternative to the Cisco GLC-FE-100FX-RGD. Every piece is coded and then validated inside real Cisco routers and switches before packing, so the host platform recognises it as a supported optic instead of an unknown device. For buyers running industrial Ethernet, substation, transport or plant-floor networks, that mix of rugged construction, solid 2km reach and verified interoperability removes the two most frequent causes of link downtime: temperature drift and compatibility faults.

Ordinary Fast Ethernet optics are rated for comfortable, air-conditioned rooms. This module is designed for the opposite environment. An extended case temperature window of -5 °C to 85 °C keeps the laser biased inside specification when a cabinet heats up in summer or cools overnight, while a reinforced metal housing and vibration-tolerant latch cope with machinery, vehicles and outdoor enclosures. The outcome is a dependable 100Base-FX link instead of dropped frames at peak load.

Production follows the same discipline: boards are built on an ISO-controlled SMT line with lead-free soldering, each optical sub-assembly is calibrated on the 1310nm bench, and finished units go through burn-in plus an optical eye-mask screen. Materials are RoHS compliant for procurement policies that restrict hazardous substances, and every unit carries a traceable serial number for warranty handling.

• Rugged industrial construction: extended -5 °C to 85 °C case temperature, reinforced metal housing and vibration-tolerant latch for cabinets, poles and plant floors.
• Long multi-mode reach: a clean optical budget that covers campus and industrial spans of up to 2km on duplex fiber.
• 100Base-FX Fast Ethernet compliant: 100 Mbps line rate with standard 4B/5B coding for interoperability with Cisco and MSA Fast Ethernet ports.
• Verified Cisco compatibility: tested replacement for the GLC-FE-100FX-RGD, in-system validated in real switches and routers before shipment.
• Duplex LC interface: the common LC connector, so existing patch cords and panels stay in service.
• Stable low-power operation: modest current draw and low heat rise keep the optic within thermal limits inside sealed enclosures.
• Eco-conscious build: lead-free soldering, RoHS compliant materials and recyclable packaging.

The module fits wherever a Fast Ethernet optical link has to survive more than an office. Regular deployments include:

1. Industrial Ethernet rings and plant-floor switches inside manufacturing plants and warehouses.
2. Substation, tunnel, port and roadside cabinets exposed to temperature swings and vibration.
3. Campus and building backbone links that still run Fast Ethernet over multi-mode fiber.
4. Legacy Cisco access and distribution switches kept in service with a compatible optic.
5. Test benches and lab racks where repeated insertion cycles wear out commercial housings.

It is rated for an extended case temperature of -5 °C to 85 °C and uses a reinforced metal housing with a vibration-tolerant latch, so it suits cabinets and plant-floor installs where a commercial 0 °C to 70 °C optic would drift or lose link over a season.

Yes. The 1310nm transmitter and receiver pair is specified for up to 2km on duplex fiber. Keep connector end faces clean and use quality patch cords, because contamination is the main reason a Fast Ethernet link falls short of its rated reach.

It is supplied as a third-party compatible unit for the GLC-FE-100FX-RGD. Each piece is coded and tested in real Cisco routers and switches with Fast Ethernet SFP ports before shipment, and it follows the MSA specification so other compliant platforms accept it as well.

No. The optic uses the standard SFP cage and duplex LC multi-mode interface, and the port is configured exactly as with an original module. Because this SKU ships without DDM, no digital diagnostic monitoring is expected on the port.

Every unit is sealed in an anti-static bag with a protective dust cap on the LC interface, then packed in shock-absorbing foam inside an export carton. Orders are screened for optical output power, receiver sensitivity and housing condition before dispatch, and each module can be traced by serial number for warranty service. Small sample orders ship quickly, so engineers can validate a single unit in the target switch before a volume rollout.