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The TCF-142 media converter is 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 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 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 OperationThe 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.
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Optical Fiber Side
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Fiber Connector
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SC or ST
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Cable Requirements
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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
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Transmission Distance
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Single-mode: 40 km
Multi-mode: 5 km
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Wavelength
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Single-mode: 1310 nm
Multi-mode: 850 nm
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Tx Output
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Single-mode: > -5 dBm
Multi-mode: > -5 dBm
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Rx Sensitivity
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Single-mode: -25 dBm
Multi-mode: -20 dBm
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Point-to-Point Transmission
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Half-duplex or full-duplex
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Ring Transmission
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Half-duplex
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• RS-232/422/485 Side
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Connector
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Terminal Block
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RS-232 Signals
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Tx, Rx, GND
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RS-422 Signals
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TxD+, TxD-, RxD+, RxD-, GND
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RS-485-4w Signals
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TxD+, TxD-, RxD+, RxD-, GND
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RS-485-2w Signals
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Data+, Data-, GND
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Baudrate
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50 bps to 921.6 Kbps
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ESD Protection
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15 KV for all signals
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• Physical Characteristics
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Housing
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Aluminum (1 mm)
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Dimensions
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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)
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Weight
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320 g
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• Environmental Limits
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Operating Temperature
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Standard Models: 0 to 60°C (32 to 140°F)
Wide Temp. Models: -40 to 75°C (-40 to 167°F)
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Storage Temperature
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-40 to 75°C (-40 to 167°F)
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Ambient Relative Humidity
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5 to 95% (non-condensing)
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• Power Requirements
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Input Voltage
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12 to 48 VDC
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Power Consumption
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140 mA @ 12 V
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Power Line Protection
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2 KV Burst (EFT), EN61000-4-4
2 KV Surge, EN61000-4-5
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Voltage Reversal Protection
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Protects against V+/V- reversal
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Over Current Protection
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1.1 A (protects against two signals shorted together)
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• Standards and Certifications
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Safety
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UL 60950-1
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EMC
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CE, FCC
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EMI
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FCC Part 15 Subpart B Class B, EN 55022 Class B
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EMS
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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
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Green Product
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RoHS, CRoHS, WEEE
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• MTBF (mean time between failures)
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Time
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780,480 hrs
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Database
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Telcordia (Bellcore), GB
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• Warranty
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Warranty Period
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5 years
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Features
- “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
- Compact size
- Decreases signal interference
- Protects against electrical interference and chemical corrosion
- Supports baudrates of 50 bps to 921.6 Kbps
- Wide temperature models available (-40 to 75°C)
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