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.
• 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 |
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