The Moxa TCF-142 Series offers a dependable fiber optic conversion solution for serial interfaces, extending RS-232/422/485 communication up to 40 km (single-mode) or 5 km (multi-mode). Ideal for noisy and harsh industrial environments, this device helps protect your infrastructure against EMI and signal degradation while enabling both point-to-point and ring fiber topologies.

Key Features:

• Supports point-to-point and fiber ring configurations
• Transmission range: 5 km (multimode) or 40 km (single-mode)
• Auto baudrate detection up to 921.6 kbps
• Hardware-based RS-485 data direction control (ADDC)
• Rugged IP30-rated metal housing
• Wide-temperature models available (-40 to 75 °C)
• EMI and corrosion resistance

Technical Specifications:

Serial Interface:

• Ports: 2
• Standards: RS-232 / RS-422 / RS-485 (one mode at a time)
• Baudrate: 50 bps to 921.6 kbps
• RS-485 Flow Control: ADDC
• Signals:
• RS-232: TxD, RxD, GND
• RS-422: Tx+/Tx-, Rx+/Rx-, GND
• RS-485 2-wire: Data+/Data-, GND
• RS-485 4-wire: Tx+/Tx-, Rx+/Rx-, GND

Fiber Interface:

| Feature | Multimode | Single-mode |
|----------------------|--------------------------|--------------------------|
| Distance | 5 km | 40 km |
| Typical Wavelength | 850 nm | 1310 nm |
| TX Output | 0 to -5 dBm | 0 to -5 dBm |
| RX Sensitivity | 0 to -20 dBm | 0 to -25 dBm |
| Link Budget | 15 dB | 20 dB |
| Connector Type | 7-pin terminal block | 7-pin terminal block |

Power:

• Voltage Input: 12 to 48 VDC
• Power Consumption: 70 to 140 mA
• Connector: Terminal block
• Protections: Overcurrent and reverse polarity

Mechanical:

• Housing: Metal, IP30
• Dimensions (with ears): 90 x 100 x 22 mm
• Dimensions (without ears): 67 x 100 x 22 mm
• Weight: 320 g
• Mounting: Wall mount

Environmental:

• Operating Temperature:
• Standard: 0 to 60 °C
• Wide Temp: -40 to 75 °C
• Storage Temperature: -40 to 85 °C
• Humidity: 5 to 95% (non-condensing)

Certifications:

• EMC/EMI: EN 55032/35, CISPR 32, FCC Part 15B Class A
• EMS: IEC 61000-4-2 to 4-8
• Safety: UL 60950-1
• Vibration: IEC 60068-2-6

MTBF:

• 780,480 hours (Telcordia standard)

Package Contents:

• 1 x TCF-142 Series converter
• 1 x Rubber stand
• 1 x Quick installation guide
• 1 x Warranty card