The Moxa IMC-21A-S-SC-T is a rugged industrial media converter that bridges 10/100BaseT(X) copper Ethernet to 100BaseFX single-mode fiber via an SC connector. With a -40 to 75°C operating range, it’s designed for harsh industrial and outdoor deployments where you need long-distance fiber and dependable performance in extreme temperatures.

Why We Love This Product

• Single-mode fiber supports longer distance links and better isolation than copper
• SC connector format for standard industrial patching and termination
• -40 to 75°C rating makes it suitable for harsh edge and outdoor cabinet environments
• Great choice when reliability matters more than saving a few dollars on office-grade gear

How Our Customers Use It

• Extending Ethernet to remote sites and outdoor equipment over long fiber runs
• Industrial backbones where EMI and surges make copper links unreliable
• Transport, utilities, and edge deployments with wide temperature swings
• Reducing ground-loop and interference issues by moving links onto fiber

Choosing Tips

• Choose the -T variant when you need -40 to 75°C harsh-environment capability
• Choose single-mode when distance is longer or your site standard is single-mode fiber
• If you’re indoors with moderate temperatures, the non-T model may be sufficient and more cost-effective