The TCF-142 Series converters extend serial communications over fiber optics with exceptional immunity to electrical interference. Designed for industrial use, they support both point-to-point and ring topologies using either multimode (up to 5 km) or single-mode fiber (up to 40 km). The converters are ideal for harsh environments requiring long-distance and interference-free serial connectivity.

Automatic baudrate detection and ADDC (Automatic Data Direction Control) make installation effortless, even with changing serial settings. Models are available for wide-temperature ranges, and the rugged metal housing ensures durability and protection.

Key Features:

• Supports ring and point-to-point fiber transmission
• Range: Up to 5 km (multimode), 40 km (single-mode)
• Selectable RS-232, RS-422, or RS-485 interfaces (one at a time)
• Auto baudrate detection up to 921.6 kbps
• ADDC for RS-485 simplifies flow control
• Built-in termination resistors (120 ohm / 120 kΩ)
• Fiber ring topology support with up to 100 km total length
• Electromagnetic and corrosion resistance
• Optional -40 to 75°C wide-temp models

Technical Specifications:

Serial Interface:

• Protocols: RS-232, RS-422, RS-485
• Ports: 2
• Baudrate: 50 bps to 921.6 kbps
• Flow Control: ADDC for RS-485
• Signals:
• RS-232: TxD, RxD, GND
• RS-422: Tx+/-, Rx+/-, GND
• RS-485 2-wire: Data+/-, GND
• RS-485 4-wire: Tx+/-, Rx+/-, GND
• Connector: 7-pin terminal block
• Latency: 300 ns

Fiber Optic:

• Multimode (TCF-142-M):
• Range: 5 km, 850 nm
• Link Budget: 15 dB
• Single-mode (TCF-142-S):
• Range: 40 km, 1310 nm
• Link Budget: 20 dB

Power:

• Input: 12–48 VDC
• Consumption: 70–140 mA
• Connector: Terminal block
• Reverse Polarity & Overload Protection: Yes

Mechanical:

• Enclosure: Metal, IP30
• Dimensions:
• With ears: 90 x 100 x 22 mm
• Without ears: 67 x 100 x 22 mm
• Weight: 320 g
• Mounting: Wall

Environmental:

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

Certifications:

• EMC/EMI: EN 55032/35, FCC Part 15B Class A
• Immunity: IEC 61000-4 series
• Safety: UL 60950-1
• Vibration: IEC 60068-2-6

MTBF:

• 780,480 hours (Telcordia standard)

Package Contents:

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