TCF-142 Series

Features and Benefits

  • Ring and point-to-point transmission
  • Extends RS-232/422/485 transmission up to 40 km with single-mode (TCF-142-S) or 5 km with multi-mode (TCF-142-M)
  • Decreases signal interference
  • Protects against electrical interference and chemical corrosion
  • Supports baudrates up to 921.6 kbps
  • Wide-temperature models available for -40 to 75°C environments

Certifications

Download Datasheet

Introduction
The TCF-142 media converters are equipped with a multiple interface circuit that can handle RS-232 or RS-422/485 serial interfaces and multi-mode or single-mode fiber. TCF-142 converters are used to extend serial transmission up to 5 km (TCF-142-M with multi-mode fiber) or up to 40 km (TCF-142-S with single-mode fiber). The TCF-142 converters can be configured to convert either RS-232 signals, or RS-422/485 signals, but not both at the same time.

Automatic Baudrate Detection
The TCF-142 converters can automatically detect the serial baudrate, which is an extremely convenient feature. Even if a device’s baudrate is changed, the signal will still be transmitted through the media converter without any data loss.

Ring Operation
The TCF-142 converters can be used to connect serial devices to a fiber ring. To form the ring, connect the Tx port of one TCF-142 to the Rx port of a neighboring converter. Once the ring is set up, simply use the DIP switches to configure the TCF-142 converters for ring mode. When one node transmits a signal, the signal travels around the ring until it returns back to the transmitting unit, which then blocks the signal. With the TCF-142, you can set up fiber rings that have a total circumference of up to 100 km.

Automatic Data Direction Control (ADDC®)
ADDC® is a patented hardware data flow solution developed by Moxa to handle RS-485 data direction control. ADDC® senses and controls RS-485 data direction automatically, making it unnecessary to use the handshaking signal.

Specifications

Serial Inteface
Connector 7-pin terminal block
No. of Ports 2
Serial Standard RS-232, RS-422, RS-485
Flow Control ADDC® (automatic data direction control) for RS-485
Baudrate 50 bps to 921.6 kbps (supports non-standard baudrates)
Optical Fiber
Low-Speed Fiber Module Multi-Mode Single-Mode
Fiber Cable Requirements 50/125 µm, 800 MHz G.652
62.5/125 µm, 500 MHz
Typical Distance 5 km 40 km
Wavelength Typical (nm) 850 1310
TX Range (nm) 840 to 860 1290 to 1330
RX Range (nm) 800 to 900 1100 to 1650
Optical Power TX Range (dBm) 0 to -5 0 to -5
RX Range (dBm) 0 to -20 0 to -25
Link Budget (dB) 15 20
Dispersion Penalty (dB) 1 1
Note: When using a power meter to measure the fiber TX power, set the baudrate to 9,600 bps and send data (00, …, 0h) to the serial converter’s serial port.
Pull High/Low Resistor for RS-485 1 kilo-ohm, 150 kilo-ohms
RS-485 Data Direction Control ADDC® (automatic data direction control)
Terminator for RS-485 N/A, 120 ohms, 120 kilo-ohms
Latency 300 ns
Serial Signals
RS-232 TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
RS-422 Tx+, Tx-, Rx+, Rx-, GND
RS-485-4w Tx+, Tx-, Rx+, Rx-, GND
RS-485-2w Data+, Data-, GND
Power Parameters
Input Current 70 to 140 mA @ 12 to 48 VDC
Input Voltage 12 to 48 VDC
No. of Power Inputs 1
Overload Current Protection Supported
Power Consumption 70 to 140 mA @ 12 to 48 VDC
Power Connector Terminal block
Physical Characteristics
Housing Metal
IP Rating IP30
Dimensions (with ears) 90 x 100 x 22 mm (3.54 x 3.94 x 0.87 in)
Dimensions (without ears) 67 x 100 x 22 mm (2.64 x 3.94 x 0.87 in)
Weight 320 g (0.71 lb)
Installation Wall Mounting
Environmental Limits
Operating Temperature Standard Models: 0 to 60°C (32 to 140°F)
Wide Temp. Models: -40 to 75°C (-40 to 167°F)
Storage Temperature (package included) -40 to 85°C (-40 to 185°F)
Ambient Relative Humidity 5 to 95% (non-condensing)
Standard and Cerifications
EMC EN 55032/24
EMI CISPR 32, FCC Part 15B Class A
EMS IEC 61000-4-2 ESD: Contact: 4 kV; Air: 8 kV
IEC 61000-4-3 RS: 80 MHz to 1 GHz: 3 V/m
IEC 61000-4-4 EFT: Power: 1 kV
IEC 61000-4-5 Surge: Power: 1 kV
IEC 61000-4-6 CS: 3 V
IEC 61000-4-8 PFMF
Environmental Testing IEC 60068-2-1
IEC 60068-2-2
IEC 60068-2-3
Safety EN 60950-1, IEC 60950-1
Vibration IEC 60068-2-6
MTBF
Time 780,480 hrs
Standards Telcordia (Bellcore), GB
Warranty
Warranty Period 5 years
Details See www.moxa.com/warranty