Moxa Technologies TCC-120 Handbuch

Moxa TCC-120/120I

Hardware Installation Guide

Eleventh Edition, January 2015

www.moxa.com/product

P/N: 1802001200303

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Moxa TCC-120/120I

Hardware Installation Guide

The software described in this manual is furnished under a license

agreement and may be used only in accordance with the terms of that

agreement.

Trademarks

The MOXA logo is a registered trademark of Moxa Inc.

All other trademarks or registered marks in this manual belong to their

respective manufacturers.

Disclaimer

Information in this document is subject to change without notice and does

not represent a commitment on the part of Moxa.

Moxa provides this document as is, without warranty of any kind, either

expressed or implied, including, but not limited to, its particular purpose.

Moxa reserves the right to make improvements and/or changes to this

manual, or to the products and/or the programs described in this manual, at

any time.

Information provided in this manual is intended to be accurate and reliable.

However, Moxa assumes no responsibility for its use, or for any

infringements on the rights of third parties that may result from its use.

This product might include unintentional technical or typographical errors.

Changes are periodically made to the information herein to correct such

errors, and these changes are incorporated into new editions of the

publication.

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Technical Support Contact Information

www.moxa.com/support

Moxa Americas

Toll

-free: 1-888-669-2872

Tel:

+1-714-528-6777

Fax: +1-714-528-6778

Moxa China (Shanghai office)

Tel:

+86-21-5258-9955

Fax:

+86-21-5258-5505

Moxa Europe

Tel:

+49-89-3700399-0

Fax: +49-89-3700399-99

Moxa Asia

-Pacific

Tel:

+886-2-8919-1230

Fax: +886-2-8919-1231

Moxa India

Tel:

+91-80-4172-9088

Fax: +91-80-4132-1045

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Table of Contents

1. Introduction .............................................................1

Overview ....................................................................2

Introduction..............................................................2

Built-in RS-485 ADDCTM Intelligence ............................3

Isolation................................................................... 3

Reverse Power Protection ...........................................3

DIP Switch Selectable Terminator................................3

Auto Baudrate Detection ............................................3

Product Features..........................................................4

Package Checklist ........................................................4

Product Specifications...................................................5

Product Views..............................................................6

LED Indicators.............................................................7

2. Installation ...............................................................8

STEP 1: Set the DIP Switches........................................9

STEP 2: Attach the Power Supply................................. 12

STEP 3: Wire the Terminal Block.................................. 12

STEP 4: Test the Connection ....................................... 13

STEP 5: Placement..................................................... 13

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1. Introduction

The TCC-120 and TCC-120I are RS-422/485 isolated repeaters, and the

TCC-120I comes with 2 kV isolation protection.

The following topics are covered in this chapter:

Overview

Introduction

Built-in RS-485 ADDCTM Intelligence

Isolation

Reverse Power Protection

DIP Switch Selectable Terminator

Auto Baudrate Detection



Product Features



Package Checklist



Product Specifications



Product Views

LED Indicators

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Overview

Introduction

Many important devices used in today’s industrial environments use the

RS-422 or RS-485 interface for data transmission. In some cases however,

it is necessary to extend the transmission distance between RS-422/485

devices. This is where the TCC-120/120I RS-422/485 repeaters come in.

Simply wire the power terminal block, wire the two signal terminal blocks,

set the DIP switches, and you’re ready to go.

The RS-422/485 standards use a differential signal for transmitting data

signals. In addition to distance and multi-drop issues for industrial

applications, housing, wiring, power supply, and over-surge protection are

also serious concerns.

The TCC-120I provides isolation protection for users who need an industrial

grade repeater to extend RS-422/485 transmission distance and increase

networking capability. The superior industrial application design of this

product, which includes wall mounting, terminal block wiring, external

terminal block power, and optical isolation for system protection, makes the

TCC-120/120I suitable for use in critical industrial environments.

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Built-in RS-485 ADDCTM Intelligence

ADDC™ (Automatic Data Direction Control), a Moxa leading technology,

uses a clever hardware solution to take care of the RS-485 data flow control

problem. ADDC™ is a hardware data flow solution that automatically senses

and controls data direction, making the handshaking signal method

unnecessary.

Isolation

Moxa’s electrical isolation technology uses two photo couplers to create a

gap in each electrical signal. One photo coupler transforms the electrical

signal into a light signal, which is transmitted across a small gap, and then

the other photo coupler transforms the light signal back into an electrical

signal. In this way, the two electrical circuits are completely isolated from

each other, limiting the damage that could otherwise be caused by ground

loops in the electrical signal.

Reverse Power Protection

The Reverse Power Protection feature provides extra protection against

accidentally connecting the power cables to the wrong terminal. The

converter is designed to automatically detect which power wire is positive

and which is negative, and then adjust the power supply accordingly.

DIP Switch Selectable Terminator

For many products of this type, the termination resistor is set by a jumper

located inside the product’s casing, so that the user must open the casing to

disable or change the resistor’s strength. Moxa offers a better solution. The

TCC-120/120I’s terminator is set with a DIP switch located on the outside of

the converter’s casing.

Auto Baudrate Detection

The TCC-120/120I incorporates a method for automatically detecting the

serial signal’s baudrate by hardware. This is an extremely convenient

feature for the user. Even if a device’s baudrate changes, the signal will still

be transmitted through the RS-422/485 repeater without any problems.

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Product Features

•Boost the serial signal to extend transmission distance up to an

additional 1.2 km

•Wall or DIN-rail mountable

•Terminal block for easy wiring

•Power input from terminal block

•DIP switch setting for built-in terminator (120 ohms)

•PWR, Tx, Rx LEDs

•Operating temperature from -20 to 60°C

•2 kV isolation (for the TCC-120I)

Package Checklist

Before installing the TCC-120/120I, verify that the package contains the

following items:

Standard Accessories:

•TCC-120 or TCC-120I

•DIN-rail mounting kit

•User’s guide

•Warranty card

Please notify your sales representative if any of the above items are missing

or damaged.

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Product Specifications

Communication

Signals for 2-wire

(RS-485 2-wire)

Data+, Data-, SGND

Signals for 4-wire

(RS-422 or 4-wire RS-485)

Tx+, Tx-, Rx+, Rx-, SGND

RS-485 Data Direction Control

ADDC™

Baudrate

50 bps to 921.6 Kbps

Isolation 2 kV for both Power and Signal

(TCC-120I)

Environmental

Operating Temperature

-20 to 60°C

Storage Temperature

-20 to 85°C

Humidity

5 to 95 %RH

Power

Input Power Voltage

External 12-48 VDC Power, Terminal

Block

Reverse Power Protection

Protects against V+/V- reversal

Over Current Protection

Protects against 2 signals shorted

together

Power Consumption

TCC-120:

65mA @ 12V

37mA @ 24V

26mA @ 48V

TCC-120I:

180mA @ 12V

90mA @ 24V

52mA @ 48V

Mechanical

Dimensions (W

67 x 100 x 22 mm (casing only)

90 x 100 x 22 mm (including ears)

Housing

Aluminum

Plug-In Screw Terminal Block

#22 to #16 AWG

Color

Black

Weight

148

5 g

Regulatory Approvals

CE, FCC (Class A), UL-60950-1

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Product Views

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