Unmanaged Network Switch — HMC-IDM-F21S
HMC-IDM-F21S Industrial Gigabit Media Converter
The Last Link Your Network Will Ever Need. Aluminium housing. Wide DC input 9–56V. Redundant powered. Ready to ship.
Product overview
The HMC-IDM-F21S — Industrial Gigabit Media Converter
The HMC-IDM-F21S is HEPDA's go-to industrial media converter for sites where copper Ethernet alone just doesn't cut it. Built from a rugged aluminium housing, this converter is engineered for the environments where ordinary networking gear simply gives up.
Whether you need to push a signal across a large factory floor or extend a network link to a remote outdoor cabinet, the HMC-IDM-F21S handles it — converting 10/100/1000Base-TX copper to 1000Base-SFP fibre at full Gigabit speed, with dual redundant power built right in. Your copper Ethernet network wasn't built for long distances, heavy interference, or industrial power that cuts in and out. But the HMC-IDM-F21S is.
Copper-to-Fibre Conversion
Bridges the distance limit and EMI of copper — full Gigabit signal over fibre, far beyond the 100m copper ceiling
Dual Redundant Power
Auto-switches to backup power with zero interruption to data flow when primary supply fails
Features
HMC-IDM-F21S Industrial Gigabit Media Converter
10/100/1000Base-TX to 1000Base-SFP
Full Gigabit copper-to-fibre conversion. Connects your copper network to a fibre backbone or remote switch over long distances with no signal loss.
Dual Redundant DC Power — 9–56V
Terminal block DC power input. If primary power source goes down, the converter automatically switches to the secondary with no interruption to data flow.
-20°C to +70°C Operating Range
Covers Singapore's outdoor industrial environments year-round. Suitable for rooftop cabinets, outdoor enclosures, and indoor industrial panels.
DIN-Rail and Wall Mount
DIN-Rail and wall-mount configurations for flexible installation inside IP66-rated enclosures or control panels.
IEEE 802.3az Energy Efficient Ethernet
Reduces power consumption during low-traffic periods — relevant for remote field deployments on constrained power budgets.
MTBF > 100,000 hours
Over 11 years continuous operation. Specified for 24/7 operation in places where commercial-grade networking gear simply isn't rated to survive.
| Model | HMC-IDM-F21S |
| Ports | 2 x 10/100/1000Base-TX + 1 x 1000Base-SFP |
| Backplane bandwidth | 12Gbps |
| Max packet length | 10K Bytes |
| Input power | DC 9–56V (Redundant terminal block) |
| Operating temperature | -20°C to +70°C |
| Dimensions | 120 × 90 × 35 mm |
| Weight | 350g |
| Casing | Aluminium |
| Mounting | DIN-Rail and Wall Mount |
| Certifications | FCC Part 15, CE, IEC/EN 60884-1, EN 62368-1, RoHS |
| MTBF | > 100,000 hrs |
Applications
Where it is deployed
Industrial Automation and Manufacturing
Factories run long production lines where copper Ethernet simply can't reach without signal loss. Converts copper to fibre for the long run and back to copper at the edge.
Oil, Gas and Petrochemical
On-shore and offshore rigs run on industrial DC power systems and face constant vibration, moisture, and salt air. The DC 9–56V input works straight off these systems.
Outdoor Telecom and Network Infrastructure
Mounted on poles, rooftops, and outdoor cabinets. Housed inside a HEPDA IP66 stainless steel enclosure, becomes a fully sealed, weatherproof network node.
Pharmaceutical and Food Processing
High-humidity environments and frequent washdowns — conditions that destroy standard networking gear. Sealed inside an industrial enclosure, keeps all active hardware protected.
Marine and Port Environments
Salt air, long cable runs, and high humidity. Combined with a HEPDA SS316L enclosure, the HMC-IDM-F21S gets a corrosion-proof home built for the waterfront.
Construction and Infrastructure Projects
From MRT track-side cabinets to building management systems. Handles copper-to-fibre conversion reliably through construction conditions and beyond.
Documentation
Downloads
FAQ
Frequently asked questions
Complete industrial network ecosystem
HMC-IDM-F21S — part of a complete HEPDA network solution
HEPDA supplies the full range of industrial network infrastructure — not just the hmc-idm-f21s.
Ready to specify?
Our Singapore team will confirm the right specification for your application — at no charge. Full documentation available for project files.