Moxa Technologies TCF-142-S(-T) Dépliant

 

— 4 — 

— 5 — 

— 6 — 

RS-485

Rx

Tx

Rx

Tx

RS-485

GND

Data-

Data+

GND

D-

D+

TCF-142

TCF-142

Serial

Device

Serial

Device

D-

GND

D+

Data-

GND

Data+

Copper

Copper

Fiber

PC

Tx
Rx

GND

Copper

Copper

Fiber

RS-232

Rx

Tx

Rx

Tx

GND

Rx
Tx

RS-232

Tx

GND

CTS

RTS

DSR

DTR

Rx

Tx

Rx

CTS

RTS

DSR

DTR

GND

TCF-142

TCF-142

Serial

Device

 

There are 4 DIP switches on the top end of the TCF-142. SW1 and SW2 
are used to set the serial interface. SW3 is used to enable or disable the 
120 Ω termination resistor. SW4 is used to enable “Ring” mode or enable 
“Point to Point” mode. 

 

RS-232 ON 

OFF

RS-422 OFF 

OFF

RS-485 4-wire 

OFF 

OFF

RS-485 2-wire 

OFF 

ON

 

Enable ON 
Disable OFF

 

 

 

Ring mode 

ON 

Point to Point 
mode 

OFF

 

 
ATTENTION 
For Fiber Ring Users: 
To avoid problems when setting up a fiber ring, each TCF-142 unit 
making up the ring must be powered down and set to “Ring mode.” Next, 
make sure all cables are connected properly, and then power up all 
devices connected to the ring. After

 

powering up the TCF-142 units, if 

the Rx LEDs of the converters glow continuously, power down and then 
power up ONE of the TCF-142 units in the ring to return the network to 
normal operation. 

 
NOTE  “Ring Mode” can only be sued for half-duplex applications 

(e.g., RS-485 multi-drop communication). 

The DIP switch array called DIP-2 is located inside the TCF-142. DIP-2 
has two DIP switches used to adjust the pull high/low resisters.   
NOTE: SW1 and SW2 should be set both to ON, or both to OFF. 

 

 

150K (default) 

OFF 

OFF 

1K ON 

ON 

 
NOTE  When termination is enabled, we recommend using the 1K 

(ON/ON) setting. 

 

There are 3 LEDs on the front panel of the TCF-142. 

 

PWR 

Red 

Steady ON: Power is ON 

Fiber Tx Green 

Blinking when fiber is transmitting data 

Fiber Rx Orange 

Blinking when fiber is receiving data 

Serial Communication 
Signals for RS-232 

TxD, RxD, SGND 

Signals for RS-422 

TxD+, TxD-, RxD+, RxD-, SGND 

Signals for 4-wire RS-485 

TxD+, TxD-, RxD+, RxD-, SGND 

Signals for 2-wire RS-485 

Data+, Data-, SGND 

Baudrate 

300 bps to 921.6 Kbps 

Surge protection 

15 KV ESD 

Fiber Communication 
Connector type 

ST 

Distance 

TCF-142-S: Single mode fiber for 40 km 
TCF-142-M: Multi mode fiber for 5 km 

Support Cable 

TCF-142-S: 

8.3/125, 8.7/125, 9/125 or 10/125 μm 

TCF-142-M: 

50/125, 62.5/125, or 100/140 μm 

Wavelength TCF-142-S: 

 

1310 

nm 

TCF-142-M:   850 nm 

TX Output 

TCF-142-S:   

> -5 dBm 

TCF-142-M:    > -5 dBm 

RX Sensitivity 

TCF-142-S:   

-25 dBm 

TCF-142-M:   -20 dBm 

Point-to-Point Transmission

Half or Full duplex 

Multi-drop Transmission 

Half duplex, fiber ring 

Environmental 
Operating Temperature 

0 to 60

°C (32 to 142°F), 5 to 95 % RH 

Extended Operating 
Temperature (for -T models)

-40 to 75

°C (-40 to 167°F) 

Storage Temperature 

-20 to 85

°C (-4 to 185°F), 5 to 95 % RH 

Power 
Input Power Voltage 

12 to 48 VDC * 

Power Line Protection 

1 KV Burst (EFT), EN61000-4-4 
1 KV Surge, EN61000-4-5 

Reverse Power Protection 

Protects against V+/V- reversal 

Over Current Protection 

Protects against 2 signals shorted together: 1.1A 

Power Consumption 

100 mA at 12 VDC 

Mechanical 
Dimensions (W 

× D × H) 

67 

× 100 × 22 mm 

90 

× 100 × 22 mm (including ears) 

Material Aluminum 

(1 

mm) 

Gross Weight 

140g 

Regulatory Approvals 
CE Class 

B 

FCC 

Part 15 sub Class B 

TÜV EN 

60950 

UL UL 

60950 

EMI 

EN55022 1998, Class B 

EMS EN61000-4-2 

(ESD), 

Criteria A, Level 2 

EN61000-4-3 (RS), Criteria A, Level 2 
EN61000-4-4 (EFT), Criteria A, Level 2 
EN61000-4-5 (Surge), Criteria A, Level 3 
EN61000-4-6 (CS), Criteria A, Level 2 

Free fall 

IEC 60068-2-32 

 
WARNING 
1. This unit is not meant to be sold to consumers. It will only be shipped 

to manufacturers or factories. 

2. The DC source should come from an external adapter or 12 to 48 VDC 

source (not from DC mains) by using a transfer device. 

3. This unit should be installed or set up by a qualified service person. 
 

© 2006