Moxa Technologies TCC-100 Series User manual

Moxa TCC-100/100I User’s Guide
Seventh Edition, June 2008
www.moxa.com/product
©2008 Moxa Inc., all rights reserved.
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.
Copyright Notice
Copyright ©2008 Moxa Inc.
All rights reserved.
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: [phone]
Fax: [phone]
Moxa China (Shanghai office):
Toll-free: 800-820-5036
Tel: [phone]
Fax: [phone]
Moxa Europe:
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Moxa Asia-Pacific:
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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

1
1
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
O4
O7
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