The TCF-90 Series from Moxa includes compact RS-232-to-fiber converters designed for industrial-grade data transmission. These devices are port-powered, drawing energy from RS-232 handshake lines (TxD, RTS, DTR), or optionally powered via USB or DC supply. They transmit RS-232 signals over fiber optic cables, supporting distances up to 5 km (multimode) or 40 km (single-mode). The optical link effectively shields data from ground loops, EMI/RFI noise, and electrical surges, making it ideal for secure and interference-free communication in industrial and inter-building setups.

Technical Details (English):

General Features:

• Application: RS-232 to fiber optic conversion
• Power Supply Options:
• Via serial lines: TxD, RTS, DTR
• External: USB cable or DC adapter
• Fiber Connector: ST type
• Compact design for easy installation

Transmission Distance:

• TCF-90-M (Multimode): up to 5 km
• TCF-90-S (Singlemode): up to 40 km

Key Functions:

• Integrated LED for port power testing
• Isolation protects against:
• Ground potential differences
• Ground loops
• EMI/RFI noise
• RF radiation

Connectivity:

• RS-232 Port: DB9 female
• Built-in SW4 switch for test mode to verify port power

Recommended Setup:

• Set RTS or DTR to ON for reliable power
• Use external power when handshake lines are inactive

Applications:

• Industrial control systems
• Secure data transmission between or within buildings