Moxa Technologies TCC-120 Manual

Moxa TCC-120/120I
Hardware Installation Guide
Eleventh Edition, January 2015
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© 2015 Moxa Inc. All rights reserved.
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.
Copyright Notice
© 2015 Moxa Inc. All rights reserved.
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
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Moxa Americas
Toll
-free: 1-888-669-2872
Tel:
[phone]
Fax: [phone]
Moxa China (Shanghai office)
Tel:
[phone]
Fax:
[phone]
Moxa Europe
Tel:
[phone]
Fax: [phone]
Moxa Asia
-Pacific
Tel:
[phone]
Fax: [phone]
Moxa India
Tel:
[phone]
Fax: [phone]
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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
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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2
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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3
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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4
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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5
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
×
D
×
H)
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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6
Product Views
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