Moxa Technologies TCC-100 Series Manuale utente

Moxa TCC-100/100I User’s Guide

Seventh Edition, June 2008

www.moxa.com/product

Reproduction without permission is prohibited.

Moxa TCC-100/100I User’s 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.

Reproduction without permission is prohibited.

Trademarks

MOXA 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.

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):

Toll-free: 800-820-5036

Tel: +86-21-5258-9955

Fax: +86-10-6872-3958

Moxa Europe:

Tel: +49-89-3 70 03 99-0

Fax: +49-89-3 70 03 99-99

Moxa Asia-Pacific:

Tel: +886-2-8919-1230

Fax: +886-2-8919-1231

Table of Contents

Chapter 1 Introduction...........................................1-1

Overview.............................................................. 1-2

Product Features................................................... 1-4

Package Checklist................................................. 1-4

Product Specifications.......................................... 1-4

Schematic............................................................. 1-6

LED Indicators..................................................... 1-6

Chapter 2 Installation.............................................2-1

Hardware Installation ........................................... 2-2

Termination Resistor Diagram.............................. 2-7

Function Diagram................................................. 2-7

Isolation Block Diagram....................................... 2-8

Typical Applications............................................. 2-8

Appendix A Service Information............................. A-1

Moxa Internet Services.........................................A-2

Problem Report Form...........................................A-3

Product Return Procedure.....................................A-4

Revision History...................................................A-5

Chapter 1 Introduction

TCC-100/100I is an RS-232 to RS-422/485 media converter. Note that TCC-100I

comes with 2 KV isolation protection.

The following topics are covered in this chapter:

Overview

Product Features

Package Checklist

Product Specifications

Schematic

LED Indicators

Moxa TCC-100/100I User’s Guide

Overview

Introduction

Many important devices used in today’s industrial environment are still designed

for use with an RS-232 interface. The reason is due in part to tradition, and in part

to convenience. RS-232 hardware is relatively easy to design, and the device can

be readily connected to most PCs. The drawback is that RS-232 is a point-to-point

interface, and it imposes a distance limitation of only 15 meters between the

device and the computer.

To overcome these limitations, many users employ RS-232 to RS-422/485

converters, allowing RS-232 devices to connect to an industrial RS-422 or

RS-485 network and transmit data over distances up to 1.2 km. The RS-422/485

standards overcome the distance limitation by using a differential signal for

transmitting data and control signals. Transmission distance and multi-drop

connections are not the only issues of importance for industrial applications In

addition, housing, wiring, power supply, and over-surge protection are also

serious concerns.

TCC-100I provides isolation protection for users who need an industrial grade

interface conversion product to extend RS-232 transmission distance and increase

networking capability. Its superior industrial application design, which includes

DIN-Rail mounting, terminal block wiring, external terminal block power, and

optical isolation for system protection, makes TCC-100I suitable for use in

critical industrial environments. Simply put, your RS-232 devices can be used as

part of an industrial RS-422/485 network, but without any hardware or software

changes.

1-2

Introduction

RTS/CTS RS-422 Handshaking Signals

TCC-100/100I provides RS-422 handshaking signal support. The RTS and CTS

signals help solve the RS-422 signal handshaking problem and reduce data

transmission errors.

Built-in RS-485 ADDC™ Intelligence

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

clever hardware solution to manage RS-485’s data flow control problem.

ADDC™ is a hardware data flow solution that automatically senses and controls

data direction, making the handshaking signal method obsolete.

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 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 power surges 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. TCC-100/100I’s

terminator is set with a DIP Switch located on the outside of the converter’s

casing.

Auto Baud Rate Detection

TCC-100/100I incorporates a method for automatically detecting the serial

signal’s baud rate by hardware. This is an extremely convenient feature for the

user. Even if a device’s baud rate changes, the signal will still be transmitted

through the RS-232 to RS-422/488 converter without any problem.

1-3

Moxa TCC-100/100I User’s Guide

Product Features

•RS-232 to RS-422 conversion with RTC/CTS support

•RS-232 to 2/4-wire RS-485 conversion

•Detachable wall and DIN-Rail mounting for easy RS-422/485 wiring

•PWR, Tx, and Rx LEDs

•16 KV ESD Surge Protection

•2 KV Isolation (TCC-100I) for both power and RS-422/485 signals

•Operating temperature from -20°C to 60°C

Package Checklist

Before installing Moxa TCC-100/100I, verify that the package contains the

following items:

•TCC-100 or TCC-100I

•User’s Manual (this document)

•Warranty Booklet

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

damaged.

Product Specifications

Model Names TCC-100, TCC-100I

Communication

RS-232 Signal Supports Tx, Rx, DTR, DSR, RTS, CTS, DCD;

Female DB9 interface

RS-422/485 Signal Terminal Block connector (DIP Switch selectable)

4-wire RS-422 (with RTS/CTS), up to 10 nodes (1.2

km)

4-wire RS-485: up to 32 nodes (1.2 km)

2-wire RS-485: up to 32 nodes (1.2 km)

RS-485 Data Direction

Control ADDC™

Baud Rate 50 bps to 230.4 Kbps

Surge Protection 16 KV ESD RMS, for all signals

Isolation 2 KV (TCC-100I) for both Power and Signal

Environment

Operating Temperature -20 to 60°C (-4 to 140°F)

1-4

Introduction

Storage Temperature -20 to 85°C (-4 to 185°F)

Humidity 5 to 95 %RH

Power

Input Power Voltage External Power 12-30 VDC, Terminal Block

Reverse Power

Protection Protects against V+/V- reversal

Over Current Protection Protects against 2 signals shorted together

Power Consumption 400 mA(max.) at 12V

Mechanical

Dimensions

(W ×D ×H) 67 ×100 ×22 mm (without DIN-Rail mounting kit)

90 ×100 ×22 mm (with DIN-Rail mounting kit)

Case Aluminum

Plug-In Screw Terminal

Block #22 – #16 AWG

Weight 148±5 g

Regulatory Approvals CE, FCC (Class B)

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

be shipped to manufacturers of 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.

1-5

Moxa TCC-100/100I User’s Guide

1-6

Schematic

11.5 mm 67 mm

28.7 mm

43 mm

28.7 mm

100.4 mm

O3.5

22 mm

LED Indicators

TCC-100/100I’s top panel contains three LED

indicators, as described in the following table:

LED Name LED Function

PWR Red indicates the power is on.

Green indicates TCC-100/100I is

receiving data from the RS-232

port.

Yellow indicates TCC-100/100I

is receiving data from the

RS-422/485 port.

PWR

RED

GREEN

YELLOW

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