KTI Networks KSC-240 User Manual

Industrial

RS-232 to RS-485/422 Converter

KSC-240

Installation Guide

DOC.070412-KSC-240

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(C) 2006 KTI Networks Inc. All rights reserved. No part of this documen­tation may be reproduced in any form or by any means or used to make
any directive work (such as translation or transformation) without per­mission from KTI Networks Inc.

KTI Networks Inc. reserves the right to revise this documentation and to
make changes in content from time to time without obligation on the part
of KTI Networks Inc. to provide notification of such revision or change.

For more information, contact:

United States KTI Networks Inc.

P .O. BOX 631008
Houston, T exas 77263-1008

Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
URL: http://www.ktinet.com/

International Fax: [phone]

E-mail: [e-mail]
URL: http://www.ktinet.com.tw/

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The information contained in this document is subject to change without
prior notice. Copyright (C) All Rights Reserved.

TRADEMARKS

Ethernet is a registered trademark of Xerox Corp.

FCC NOTICE

This device complies with Class B Part 15 the FCC Rules. Operation is
subject to the following two conditions: (1) This device may not cause
harmful interference, and (2) this device must accept any interference
received including the interference that may cause.

CE NOTICE

Marking by the symbol indicates compliance of this equipment to
the EMC directive of the Europea n Community . Such marking is indica-

tive that this equipment meets or exceeds the following technical stan­dards:

EMC Class B
EN 50081-1/1992 : EN55022:1994/A1:1995/A2:1997 Class B

EN61000-3-2:2000
EN61000-3-3:1995/A1:2001

EN 55024:1998/A1:2001

IEC 61000-4-2:1995
IEC 61000-4-3:1995
IEC 61000-4-4:1995
IEC 61000-4-5:1995
IEC 61000-4-6:1996
IEC 61000-4-8:1993
IEC 61000-4-11:1994

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Table of Contents

1. Introduction.........................................................5

1.1 Features ........................................................................................ 6

1.2 Specifications ................................................................................ 7

2. Installation.........................................................12

2.1 Unpacking .................................................................................... 12

2.2 Safety Cautions .......................................................................... 13

2.3 DIN-Rail Mounting ....................................................................... 14

2.4 Panel Mounting............................................................................ 16

2.5 Applying Power ........................................................................... 18

2.6 Power Failure Relay Output ........................................................ 21

2.7 DIP SW Configuration.................................................................. 22

2.7.1 RS-485/422 Driver and Receiver Control ................................. 28

2.8 Making Serial RS-232 Connection .............................................. 29

2.8.1 Cable for Connection to PC COM Port ..................................... 31

3 Making RS-485/422 Connection .......................32

3.1 RS-422 Point-to-Point Circuit ...................................................... 33

3.2 RS-422 Multi-drop Network ......................................................... 3 4

3.3 RS-485 Multi-drop Network ......................................................... 3 6

3.4 RS-485 Half-duplex 2-wire Network ............................................ 38

3.5 RS-485 Full-duplex 4-wire Network ............................................ 3 9

3.6 Summary of the Converter Applications ...................................... 41

4 LED Indicators ...................................................42

4.1 LED Indicators ............................................................................. 4 2

5 Factory Def ault Configuration ..........................43

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1. Introduction

The industrial converter is designed to convert RS-232 signals to opti­cally isolated, bala nced, full or half-duplex RS-422 or RS-485 signals at
baud rate up to 115.2Kbps. It features R TS control de sign, which allows
software to control RS-485 tra nsmission. With smart ADCTM (Auto Data
Control) design, the converter can uses send data signal to control RS­485 tra nsmission automatically so no software control is required in RS­485 mode. The Din-rail mountable design makes it ideal for industrial
cabinets and enclosures. Further, more designs such as signal protec­tion, wide operating temperature range, wide power voltage range are
provided to suit for more industrial applications.

For industrial environment, the converters are designed with the follow­ing enha nced features exceeding that of commerci al medi a converters:

• High a nd wide operating Temperature

• Wide operating voltage range for DC power input

• Power input interface: Industrial screw terminal block and DC

power jack for external commercial power adapter as option

• DIN rail mounting support for industrial enclosure

• Screw panel mounting support for industrial enclosure

• Industrial-rated Emission a nd Immunity perf orma nce

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1.1 Feature s

 Supports RS-232 baud rate up to 115.2Kbps
 Operation with no required configuration
 Provides surge protection (transient voltage) on all interface lines
 Provides high ESD protection on all line signals
 Optical isolated between RS-232 and RS-485/422 interfa ces
 Supports RS-422, 2-wire RS-485, a nd 4-wire RS-485 network
 Supports full-duplex or half-duplex for RS-485/422 interface
 Provides remote R TS control for RS-485 tra nsmission
 Provides ADC

TM

(Auto Data Control) f or RS-485 tra nsmission

 Designed for industrial environments with:

- Surge, ESD, a nd isolation protection

- DIN-rail and pa nel mounting support

- Wide power voltage range support

- T erminal block and Jack-type power connectors

- Wide operating temperature range support

- Alarm relay output f or device power failure

- Industrial-rated emission a nd i mmunity performance

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1.2 Specifications

This figure shows the important components of the device:

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Serial Interface (RS-232 Port)

Connector DB9 female
Pin Assignments DCE type
Baud Rate Support Up to 115K baud
Connector Shield Connect to chassis ground
Connection Dista nce 15 meters
High ESD T olerance +/-15KV on Tx, Rx lines
Overvoltage Protection Cutoff if over +/-28V
Isolation Optical isolation with RS-485/422 interface

RS-485/422 Interface

Connector Screw-type terminal block
Signal T ype Bala nced differenti al lines
Data Speed 115Kbps
Standard EIA-485, EIA-422
High ESD T olera nce +/-15KV on driver a nd rece iver lines
Overvoltage Protection Cutoff if over +/-28V

LED Indicators
LED DISPLA Y ST ATE INTERPRET ATION

PWR Power status ON Power on

OF F Power off
232 TX RS-232 TX BLIN K RS-232 TX Activity
232 RX RS-232 RX BLIN K RS-232 RX Activity
TX C RS-485/422 TX control O N RS-485 driver is enabled

OF F RS-485 driver is disabled

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Configuration DIP SW Settings

SW Name State Function

SW1-2&1 4W O ff 4-wire (RS-485/422 driver receiver separated)

2W On 2-wire (RS-485/422 driver receiver connected)

SW1-3 T -D Off Disable RS-485/422 receiver terminator

SW1-4 TXC Off RS-485/422 driver enable control by RTS or ADC

SW1-5 RTS-D Off Disable RTS control for RS-485/422 TX RX

SW1-6 RXC Off RS-485/422 receiver enable control by RTS or ADC

SW1-8&7 BIAS-D Off RS-485/422 line bias is disabled

SW2-1 SDD Off Disable ADC control for RS-485/422 TX RX

SW2-2 1200 On ADC Timing parameter for RS-232 baud 1200
SW2-3 2400 On ADC Timing parameter for RS-232 baud 2400
SW2-4 4800 On ADC Timing parameter for RS-232 baud 4800
SW2-5 9600 On ADC Timing parameter for RS-232 baud 9600
SW2-6 19200 On ADC Timing parameter for RS-232 baud 19200
SW2-7 38400 On ADC Timing parameter for RS-232 baud 38400
SW2-8 115200 On ADC Timing parameter for RS-232 baud 115200

T -E On Enable RS-485/422 receiver terminator

TXE On RS-485/422 driver is forced to enable

RTS-E On Enable RTS control for RS-485/422 TX RX

RXE On RS-485/422 receiver is forced to enable.

BIAS-E On RS-485/422 line bias is enabled

SDE On Enable ADC control for RS-485/422 TX RX

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DC Power Interface

Interface Screw-type terminal block

1. T wo pairs f or power wire ca scading

2. One pair for power failure relay output

DC Jack (-D6.3mm/+D2.0mm)
Operating Input Voltages +7V ~ +30V(+5%)
Power consumption 0.6W @+7.5V DC, 12VDC, 30V DC input

Basic Information

Conversion RS-232 RX data to RS-485/422 TX data

RS-485/422 RX data to RS-232 TX data
Optical Isolation Isolated between RS-232 and RS-485/422

3000V DC rms

Mecha nical

Dimension (base) W 28mm x D 82mm x H 95mm
Housing Enclosed metal with no fan
Mounting Support DIN-rail mounting, Panel mounting
Weight 240g

Environmental

Operating T emperature -20oC ~ 70oC
Storage T emperature -20oC ~ 85oC
Relative Humidity 5% ~ 90%

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Certificate

F C C Part 15 Class B
CE/EMC EMI EN50081-1 Class B

EMS EN55024
CE/L V D Safety EN 60950

EN 50081-1/1992 :
EN55022:1994/A1:1995/A2:1997
EN61000-3-2:2000
EN61000-3-3:1995/A1:2001

EN 55024:1998/A1:2001
IEC 61000-4-2:1995 ESD Test
IEC 61000-4-3:1995 RS Test
IEC 61000-4-4:1995 EFT/BURST T e st
IEC 61000-4-5:1995 Surge Te st
IEC 61000-4-6:1996 CS Test
IEC 61000-4-8:1993 Magnetic Field
IEC 61000-4-11:1994 V olatge Int. Dips

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2. Installation

2.1 Unpacking

Check that the following components have been included:

• Information CD

• The device unit

• DIN-rail mounting bracket

If any item is found missing or damaged, please contact your local reseller
for replacement.

The following are available optional a ccessories:

• Pa nel Mounting Bra cket

The bracket is used for mounting the device on a panel surface.

• Commercial-rated AC power ad apters:

- Rated AC120V/60Hz DC7.5V 1A

- Rated AC230V/50Hz DC7.5V 1A

- Rated AC100V/50-60Hz DC7.5V 1A

- Rated AC240V/50Hz DC7.5V 1A
The adapters are used for supplying DC power to the converter
via DC power jack interface.

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2.2 Safety Cautions

T o reduce the risk of bodily injury, electrical shock, fire, and damage to
the equipment, observe the following precautions.

• Do not service any product except as explained in your system
documentation.

• Opening or removing covers may expose you to electrical shock.

Only a trained service technician should service components inside
these compartments.

• If any of the following conditions occur, unplug the product from the

electrical outlet and replace the part or contact your trained service
provider:

- The power cable, extension cable, or plug is damaged.

- An object has fallen into the product.

- The product has been exposed to water.

- The product has been dropped or damaged.

- The product does not operate correctly when you follow the
operating instructions.

• Do not push any objects into the openings of your system. Doing
so can cause fire or electric shock by shorting out interior compo­nents.

• Operate the product only from the type of external power source
indicated on the electrical ratings label. If you are not sure of the
type of power source required, consult your service provider or local
power company.

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