Moxa Technologies TCF-142-M-ST, TCF-142-M-SC, TCF-142-M-SC-T, TCF-142-S-ST, TCF-142-S-ST-T Quick Installation Manual

P/N: 1802001420625

*1802001420625*

TCF-142

Quick Installation Guide

Edition 14.0, November 2015

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2015 Moxa Inc. All rights reserved.

- 2 -

Overview

Introduction

TCF-142 series converters are equipped w ith a multiple inte r f a c e c ircuit
that can handle RS-232, RS-422, and RS-485 serial interfaces, as well as
multi-mode or single-mode fiber. TCF-142 converters are used to extend
serial transmission distance 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
must be configured to transmit a particular serial interface. You cannot
transmit both RS-232 and RS-485 signals at the same time.

Why Convert Serial to Fiber?

Fiber communication not only extends the communication distance, but
also provides many advantageous features.

IMMUNITY FROM ELECTRICAL INTERFERENC E: Fiber is not affected
by electromagnetic interference or radio frequency interference. It
provides a clean communication path and is immune to cross-talk.

INSULATION: Optical fiber is an insulator; the glass fiber eliminates the
need for using electric currents as the communication medium.

SECURITY: Fiber cannot be tapped by conventional electric means and is
very difficult to tap into optically.

RELIABILITY & MAINTENANCE: Fiber is immune to adverse
temperature and moisture conditions, d oes not corrode o r lose its signal,
and is not affected by short circuits, power surges, or static electricity.

Reverse Power Protection

The Reverse Power Protection feature provides extra protection against
accidentally connecting the power cables to th e wrong terminal. The
converter automatically detects which power w ire is positive and which is
negative.

Ring Mode

To allow one half-duplex serial device to communicate with multiple
half-duplex devices connected to a fiber ring, you should configure the
TCF-142 for “ring mode” by setting DIP switch “SW4” to the “On” position.
The Tx port of a particular TCF-142 unit connects to the neighboring
converter’s Rx port on the ring. Note that 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.

Users should

ensure that the total fiber ring
length is less than 100 km when
using

either single-mode

models

(

TCF-142-S) or multi-mode

m

odels (TCF-142-M).

- 3 -

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 .

NOTE

“Ring Mode” can only be used with half-duplex applications (i.e.,
RS-485 multi-drop communication).

DIP Switch Selectable Terminator

The TCF-142’s termination resistor is set with a DIP switch located on the
outside of the converter’s casing.

No Configuration Required for Baudrate Settings

The TCF-142 is c ompat ible w ith any baudrate from 50 bps to 921.6 kbps.
The TCF-142 automatically converts the signal back and f ort h between
serial (RS-232, RS-422, or RS-485) and fiber, and does not need to
interpret the signal or the baudrate of the transmitting device. For this
reason, the TCF-142 does not have any DIP switch es or jumpers for
setting the baudrate.

Features

• “Ring” or “Point to Point” transmission

• Extend RS-232/422/485 transmission distance:

 up to 40 km with single-mode—TCF-142-S Series
 up to 5 km with multi-mode—TCF-142-M Series

• Compact size

• Decrease signal interference

• Protect against electronic degradation and chemical corrosion

• Supports baudrates up to 921.6 kbps

• Extended operating temperature from -40 to 75°C (for “T” models)

Package Checklist

Before installing the TCF-142, verify that the package contains the
following items:

• 1 TCF-142 media converter

• Power jack to 3-pin terminal block adaptor

• Stick-on pads

• Quick installation guide (printed)

• Warranty card

NOTE: Please notify your sales representative if any of the above items
are missing or damaged.

- 4 -

Dimensions and Appearance

TCF-142 fiber converters are easy to set up and use. The serial terminal
block of one of the converters connects to your computer, the serial
terminal block of the other converter conn ects to your serial device, and
the two converters are connected by fiber cable(s).

NOTE

Electrostatic Discharge Warning!

To protect the product from damage due to e l ectrostatic
discharge, we recommend wearing a grounding device when
handling your TCF-142.

TCF-142-M/S-ST

TCF-142-M/S-SC

Wiring Examples

Connecting the Power Supply

Before using the TCF-142, first connect the DC power supp ly to the power
supply terminal block located on the TCF-142’s bottom panel.

Connecting RS-422 and 4-wire RS-485 Serial Devices

Connecting 2-wire RS-485 Serial Devices

- 5 -

Connecting an RS-232 Serial Device to a PC

Switch Settings

Serial
Connection

SW1 SW2

RS-232

ON

OFF

RS-422

ON

ON

RS-485 4-wire

OFF

OFF

RS-485 2-wire

OFF

ON

Built-in 120 Ω
Terminator

SW3 SW4

Enable

ON

–

Disable

OFF

–

Ring mode

–

ON

Point to Point mode

–

OFF

NOTE

This switch setting is used for product revision 3.2 or later; for
previous revisions, refer to the label on the product's rear panel
for the correct information.

The S1 DIP Switch is located inside the TCF-142. When the TCF-142 is in
RS-485 mode, use this DIP switch to configure RS-485 data direction
control, data format, and baudrate. When the TCF-142 is in RS-232/422
mode, the S1 DIP switch cannot affect RS-232/422 communication.

RS-485 Data Direction Control Settings

RS-485 Data Direction Control

S1 Pin 1

Auto Baudrate

OFF

Fixed Baudrate

ON

Data Format Settings

Data Format

S1 Pin 2

S1 Pin 3

S1 Pin 4

7 Bits

OFF

ON

ON

8 Bits

ON

OFF

ON

9 Bits

OFF

OFF

ON

10 Bits

ON

ON

OFF

11 Bits

OFF

ON

OFF

12 Bits

ON

OFF

OFF

- 6 -

Baudrate Settings

Baudrate

S1 Pin 5

S1 Pin 6

S1 Pin 7

S1 Pin 8

S1 Pin 9

50

OFF

ON

ON

ON

ON

75

ON

OFF

ON

ON

ON

110

OFF

OFF

ON

ON

ON

134.5

ON

ON

OFF

ON

ON

150

OFF

ON

OFF

ON

ON

300

ON

OFF

OFF

ON

ON

600

OFF

OFF

OFF

ON

ON

1200

ON

ON

ON

OFF

ON

1800

OFF

ON

ON

OFF

ON

2400

ON

OFF

ON

OFF

ON

4800

OFF

OFF

ON

OFF

ON

7200

ON

ON

OFF

OFF

ON

9600

OFF

ON

OFF

OFF

ON

19200

ON

OFF

OFF

OFF

ON

38400

OFF

OFF

OFF

OFF

ON

57600

ON

ON

ON

ON

OFF

115200

OFF

ON

ON

ON

OFF

230400

ON

OFF

ON

ON

OFF

460800

OFF

OFF

ON

ON

OFF

921600

ON

ON

OFF

ON

OFF

The S2 DIP switch is located inside the TCF-142. This switch is used to
configure the pull high/low resistors. Note that S2 Pin 1 and Pin 2 must
both be configured to ON or both must be configured to OFF.

Pull High/Low Resistor

S2 Pin 1*

S2 Pin 2*

150K

OFF

OFF

1K (default)

ON

ON

* These DIP switches are located inside the TCF-142.

NOTE

We recommend setting S2 Pin 1 and Pin 2 to the 1K option
(ON/ON) when termination is enabled.

LED Description

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

LED

Color

Function

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

Specifications

Model Names

TCF-142-M-ST

TCF-142-M-SC
TCF-142-S-ST

TCF-142-S-SC

TCF-142-M-ST-T

TCF-142-M-SC-T
TCF-142-S-ST-T

TCF-142-S-SC-T

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

- 7 -

Baudrate

50 bps to 921.6 kbps

Surge protection

15 kV ESD

Fiber Communication

Connector type

ST or SC

Distance TCF-142-S series:

Single mode fiber for 40 km
TCF-142-M series:

Multi mode fiber for 5 km

Cable Specifications

TCF-142-S series:

8.3/125, 8.7/125, 9/125 or 10/125 μm
TCF-142-M series:

50/125, 62.5/125, or 100/140 μm

Wavelength

TCF-142-S series: 1310 nm
TCF-142-M series: 850 nm

TX Output

TCF-142-S series: > -5 dBm
TCF-142-M series: > -5 dBm

RX Sensitivity

TCF-142-S series: -25 dBm
TCF-142-M series: -20 dBm

Point-to-Point
Transmission

Half or Full duplex
Ring Transmission

Half duplex

Environmental Limits

Operating Temperature

0 to 60°C (32 to 140°F), 5 to 95 % RH

Extended Operating
Temperature (T models)

-40 to 75°C (-40 to 167°F)
Storage Temperature

-40 to 75°C (-40 to 167°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 Prot e ction

Protects against V+/V- reversal

Over Current Protection

Protects against 2 signals shorted together:

1.1A

Power Consumption

140 mA at 12 VDC

Physical Characteristics

Dimensions

67 x 100 x 22 mm
90 x 100 x 22 mm (including ears)

Material

Aluminum (1 mm)

Gross Weight

320 g

Regulatory Approvals

EMC

CE, FCC (Class A)

LVD

EN 60950-1

Safety

UL 60950-1

EMI

FCC Part 15 Subpart B Class B, EN 55022
Class B

EMS

EN61000-4-2 (ESD), Criteria B, Level 2

EN61000-4-3 (RS), Criteria B, Level 2
EN61000-4-4 (EFT), Criteria B, Level 2
EN61000-4-5 (Surge), Criteria B, Level 2

EN61000-4-6 (CS), Criteria B, Level 2