TCF-142 Series

RS-232/422/485 to optical fiber media converters

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Evaluation units available for online purchase
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Note: The Green Core Product Identity of the TCF series will be phased in starting March 1, 2015. During the product transition period, you may still receive products that use the previous panel design. Please click here to learn more about Moxa’s Green Core product transition.

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
    • 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 (-40 to 75°C)

 

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. This 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 hand shaking signal.

Dimensions

 

Optical Fiber Side
Fiber Connector SC or ST
Cable Requirements Single-mode: 8.3/125, 8.7/125, 9/125, or 10/125 μm 
Multi-mode: 50/125, 62.5/125, or 100/140 μm
Transmission Distance Single-mode: 40 km 
Multi-mode: 5 km
Wavelength Single-mode: 1310 nm 
Multi-mode: 850 nm
Tx Output Single-mode: > -5 dBm 
Multi-mode: > -5 dBm
Rx Sensitivity Single-mode: -25 dBm 
Multi-mode: -20 dBm
Point-to-Point Transmission Half-duplex or full-duplex
Ring Transmission Half-duplex
RS-232/422/485 Side
Connector Terminal Block
RS-232 Signals Tx, Rx, GND
RS-422 Signals TxD+, TxD-, RxD+, RxD-, GND
RS-485-4w Signals TxD+, TxD-, RxD+, RxD-, GND
RS-485-2w Signals Data+, Data-, GND
Baudrate 50 bps to 921.6 Kbps
ESD Protection 15 KV for all signals
Physical Characteristics
Housing Aluminum (1 mm)
Dimensions Without ears: 67 x 100 x 22 mm (2.64 x 3.94 x 0.87 in) 
With ears: 90 x 100 x 22 mm (3.54 x 3.94 x 0.87 in)
Weight 320 g
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 -40 to 75°C (-40 to 167°F)
Ambient Relative Humidity 5 to 95% (non-condensing)
Power Requirements
Input Voltage 12 to 48 VDC
Power Consumption 140 mA @ 12 V
Power Line Protection 2 KV Burst (EFT), EN61000-4-4 
2 KV Surge, EN61000-4-5
Voltage Reversal Protection Protects against V+/V- reversal
Over Current Protection 1.1 A (protects against two signals shorted together)
Standards and Certifications
Safety UL 60950-1
EMC CE, FCC
EMI FCC Part 15 Subpart B Class B, EN 55022 Class B
EMS EN 61000-4-2 (ESD) Level 3,
EN 61000-4-3 (RS) Level 2,
EN 61000-4-4 (EFT) Level 2,
EN 61000-4-5 (Surge) Level 2,
EN 61000-4-6 (CS) Level 2,
EN 61000-4-8 (SFMF) Level 1
Green Product RoHS, CRoHS, WEEE
MTBF (mean time between failures)
Time 780,480 hrs
Database Telcordia (Bellcore), GB
Warranty
Warranty Period 5 years
Details See http://www.moxa.com/support/warranty.htm

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Available Models

  Model No. Description
TCF-142-M-SC RS-232/422/485 to multi-mode optical fiber media converter with fiber ring support and SC connector, 0 to 60°C operating temperature
TCF-142-M-ST RS-232/422/485 to multi-mode optical fiber media converter with fiber ring support and ST connector, 0 to 60°C operating temperature
TCF-142-S-SC RS-232/422/485 to single-mode optical fiber media converter with fiber ring support and SC connector, 0 to 60°C operating temperature
TCF-142-S-ST RS-232/422/485 to single-mode optical fiber media converter with fiber ring support and ST connector, 0 to 60°C operating temperature
TCF-142-M-SC-T RS-232/422/485 to multi-mode optical fiber media converter with fiber ring support and SC connector, -40 to 75°C operating temperature
TCF-142-M-ST-T RS-232/422/485 to multi-mode optical fiber media converter with fiber ring support and ST connector, -40 to 75°C operating temperature
TCF-142-S-SC-T RS-232/422/485 to single-mode optical fiber media converter with fiber ring support and SC connector, -40 to 75°C operating temperature
TCF-142-S-ST-T RS-232/422/485 to single-mode optical fiber media converter with fiber ring support and ST connector, -40 to 75°C operating temperature