The Moxa TCF-142 Series is a high-reliability serial-to-fiber converter designed for industrial applications requiring robust data transmission over long distances. Supporting RS-232, RS-422, or RS-485 serial interfaces and multimode or single-mode fiber, it extends serial communication up to 40 km. With features like automatic baudrate detection and ADDC for RS-485, this converter is easy to integrate and ideal for noise-sensitive environments.

Highlights:

• Supports point-to-point and fiber ring topologies (up to 100 km total ring length)
• Automatic baudrate detection up to 921.6 kbps
• RS-485 data direction control via ADDC
• Durable IP30-rated metal housing
• Transmission range: 5 km (multimode), 40 km (single-mode)
• Reduces interference and electrical signal degradation
• Wide-temperature models available: -40 to 75 °C

Technical Specifications:

Serial Interface:

• Standards: RS-232, RS-422, RS-485 (configurable)
• Ports: 2
• Baudrate: 50 bps to 921.6 kbps (non-standard supported)
• Signals:
• RS-232: TxD, RxD, GND
• RS-422: Tx+/-, Rx+/-, GND
• RS-485 (2/4-wire): Data+/-, Tx+/-, Rx+/-, GND
• Flow Control: ADDC (automatic direction control)
• Termination: Selectable (None, 120 ohms, 120 kOhms)
• Pull High/Low Resistors: 1 kOhm / 150 kOhm

Fiber Interface:

• Multimode: 850 nm, up to 5 km
• Singlemode: 1310 nm, up to 40 km
• TX Power: 0 to -5 dBm
• RX Sensitivity: up to -20 dBm (MM), -25 dBm (SM)
• Link Budget: 15 dB (MM), 20 dB (SM)
• Dispersion Penalty: 1 dB

Power:

• Input Voltage: 12 to 48 VDC
• Power Consumption: 70 to 140 mA
• Connector: Terminal block
• Protection: Reverse polarity and overcurrent

Mechanical:

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

Environmental:

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

Certifications:

• EMI/EMC: 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 × TCF-142 Series converter
• 1 × Rubber stand
• 1 × Quick installation guide
• 1 × Warranty card