The Moxa TCF-142-M-ST converts RS-232/422/485 serial communications to multi-mode fiber, helping you extend serial links through electrically noisy environments while keeping the installation clean and dependable. It’s a go-to option when multi-mode fiber is already in place and you want a stable serial connection without copper headaches.

Why We Love This Product

• Runs serial communications over multi-mode fiber for better noise immunity
• ST connector format—common in many established industrial fiber installs
• Fiber ring support for more resilient serial-over-fiber deployments
• Industrial operating range (0 to 60°C) fits typical OT environments

How Our Customers Use It

• Linking serial devices across plant zones using existing multi-mode fiber runs
• Reducing downtime caused by interference on long copper serial connections
• Connecting control rooms to field devices in electrically noisy production areas
• Building ring-style serial-over-fiber paths to improve link availability

Choosing Tips

• Choose the multi-mode (M) model when your site fiber is multi-mode and distances are moderate
• Pick ST if your patch panels, couplers, and leads are ST-based
• If you need longer runs or your site standard is single-mode, choose the single-mode TCF variant instead