Instruction/ maintenance manual of the product KSC-240 KTI Networks
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-1- Industrial RS-232 to RS-485/422 Converter KSC-240 Installation Guide DOC.070412-KSC-240.
-2- (C) 2006 KTI Networks Inc. All rights reserved. No part of this documen- tation may be reproduced in any form or by any means or used to make any directive work (such as translation or transformation) without per- mission from KTI Networks Inc. KTI Networks Inc.
-3- 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.
-4- T a ble of Contents 1. Introduction ......................................................... 5 1.1 Features ........................................................................................ 6 1.2 Specifications ............................
-5- 1. Introduction The industrial converter is designed to convert RS-232 signals to opti- cally isolated, bala nced, full or half-duplex RS-422 or RS-485 signals at baud rate up to 1 15.2Kbps. It features R TS control de sign, which allows software to control RS-485 tra nsmission.
-6- 1.1 Fe ature s Supports RS-232 baud rate up to 115.2Kbps Operation with no required configuration Provides sur ge protection (tra nsient voltage) on all interfa ce lines Provides h.
-7- 1.2 Specifications This figure shows the importa nt components of the device:.
-8- 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 .
-9- Configuration DIP SW Settings SW Na me State Function SW1-2&1 4W O f f 4-wire (RS-485/422 driver receiver separated) 2W O n 2-wire (RS-485/422 driver receiver connected) SW1-3 T -D O f f Disab.
-10- DC Power Interface Interface Screw-type terminal block 1. T wo pairs for power wire ca sca ding 2. One pair for power failure relay output DC Jack (-D6.
-11- Certificate F C C Part 15 Class B CE/EMC EMI EN50081-1 Class B EMS EN55024 CE/L V D Safet y E N 60950 EN 50081-1/1992 : EN55022:1994/A1:1995/A2:1997 EN61000-3-2:2000 EN61000-3-3:1995/A1:2001 EN 5.
-12- 2. In stallation 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.
-13- 2.2 Safety Cautions T o reduce the risk of bodily injury , electrical shock, fire, a nd da mage 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.
-14- 2.3 DIN-Rail Mounting In the product package, a DIN-rail bracket is installed on the device for mounting the converter in a industrial DIN-rail enclosure. The steps to mount the device onto a DIN rail are: 1 . Install the mounting bracket onto the device unit as shown below: 2 .
-15- The final mecha nical di mensions after installing DIN rail mounting bra cket are:.
-16- 2.4 Pa nel Mounting The device is provided with a n optional pa nel mounting bracket. The bra cket support mounting the device on a pla ne surfa ce securely . The mounting steps are: 1 . Install the mounting bracket on the device unit. 2 . Screw the bracket on the device unit.
-17- The screw locations a nd final di mension are shown below:.
-18- 2.5 Applying Power The power specifications of the device are: Operating V oltage + 7 ~ +30VDC Power Consumption M ax. 0.6W @+30V DC, +12V DC, +7.5V DC The device provides two types of power interfaces, terminal block and DC power ja ck for receiving DC power input from external power supply .
-19- Power wires: 24 ~ 12A W G (IEC 0.5~2.5mm 2 ) Install the power source wires with the plug properly . Screw the wire with plug securely . Then, plug in DC1 conta cts. If cascading the power to next device is needed, install the power wires and plug for another switch.
-20- Using DC Power Ja ck DC Jack Connector: Jack D 6.3mm D 2.0mm AC Power Adapters: Optional commercial rated adapters are available for purchasing. Rated AC120V/60Hz DC7.5V 1A Rated AC230V/50Hz DC7.5V 1A Rated AC100V/50-60Hz DC7.5V 1A Rated AC240V/50Hz DC7.
-21- 2.6 Power Failure Relay Output The device provides a relay output to report power failure event to a remote alarm monitoring system. The replay output is provided with two contacts labeled PF+ and PF- in the terminal block interface. Use the provided 2P terminal plug for signal wiring a nd plug into the PF+/ - contacts.
-22- 2.7 DIP SW Configuration SW1-2 & 1 4W 4-wire (RS-485/422 driver receiver separated) 2W 2-wire (RS-485/422 driver receiver connected) [2W] setting activate s the internal connection between driver a nd re- ceiver in RS-485/422 interface. It simplifies the installation of the con- verter in a 2-wire bus.
-23- SW1-3 T- D Disa ble RS-485/422 receiver terminator T- E Ena ble RS-485/422 receiver terminator [T -E] setting ena bles the internal 120 ohms terminator on the receiver interfa ce. A proper termination is i mporta nt in a bus topology or multi- drop network.
-24- SW1-4 T X C RS-485/422 driver ena ble control by R TS or ADC T X E RS-485/422 driver is f orced to ena ble [TXC] setting ena bles RS-485/422 driver to be controlled by R TS method or ADC method. R TS method is described later . Refer to SW2 settings for more descri ption a bout ADC method.
-25- SW1-5 R TS-D Disa ble R TS control for RS-485/422 driver R TS-E E n a ble R TS control for RS-485/422 driver R TS control method allows the connected RS-232 device (such a s a PC) to control R TS signal (CTS input at the converter end) by software to ena ble or disa ble RS-485/422 driver .
-26- SW1-8&7 BIAS-D RS-485/422 receiver line bi as is disa bled BIAS-E RS-485/422 rece iver line bia s is ena bled The line bias is used to maintain the proper idle-state voltage to the idle condition (when no driver is ena bled on the bus).
-27- SW2-1 S D D Disa ble ADC control for RS-485/422 driver S D E Ena ble ADC control for RS-485/422 driver ADC method involves special circuitry that senses when data is received on the RS-232 interf.
-28- 2.7.1 RS-485/422 Driver a nd Re ce iver Control The following ta ble lists the possible DIP S W settings related to RS-485 a nd RS-422 driver a nd rece iver control: SW1-4 SW1-6 SW1-5 SW2-1 Behavior TX E R XC R TS-D SDD Driver is ena bled. Receiver is disa bled.
-29- 2.8 Ma king Serial RS-232 Conne ction T ypical RS-232 Interfa ce DCE Pin Assignment T a ble Pin# Signal Na me Input/Output 1 Received Line Signal Detect Output 2 TX Data Output 3 RX Data Input 4 .
-30- The RS-232 to RS-485/422 converter as a n interfa ce between a n RS-232 device a nd RS-485 or RS-422 bus. The connection is illustrated a s fol- lows: The following signals received on the RS-232.
-31- 2.8.1 Cable for Connection to PC COM Port Connecting to 9-pin DTE device (Computer or PC COM) Connecting to 25-pin DTE device (Computer or PC COM).
-32- 3 Ma king RS-485/422 Connection EIA-485 [TIA-485] Bala nced (diff erential) interfa ce; defines the Physical layer , signaling protocol is not defined.
-33- RS-485 a nd RS-422 are in wide use a s a n interface f or telecommunica- tions, industrial, medical, security a nd networking a pplications. The f ol- lowing sections describe examples of some of popular physical topologies. 3.1 RS-422 Point-to-Point Circuit This is the si mplest configuration, just one driver a nd one rece iver .
-34- It also ca n convert a n RS-232 device into a receiver node in this point-to- point circuit. The configuration for a RECEIVER node is: SW1-4 T XC En a ble R TS/ADC Control f or Driver SW1-6 R X E E na ble Receiver always SW1-5 R TS-D Disa ble R TS control SW2-1 S DD Disa ble ADC control 3.
-35- The converter ca n convert a n RS-232 device into a M a ster node in this multi-drop network. The configuration for MASTER node is: SW1-4 T X E E na ble Driver always SW1-6 R X C En a ble Receive.
-36- 3.3 RS-485 Multi-drop Network This topology is si milar to RS-422 multi-drop. However , up to 32 receiv- ers are permitted under RS-485. This may be used for point-to-multipoint communications.
-37- It is also a ble to convert a n RS-232 device into a SLA VE node in this multi- drop network. The configuration for a SLA VE node is: SW1-4 T XC E na ble R TS/ADC Control for Driver SW1-6 R X E E.
-38- 3.4 RS-485 Half-duplex 2-wire Network This is the typical RS-485 topology . It takes a dva ntage of RS-485 capa bil- ity to support multiple drivers on a bus.
-39- The converter features RS-485 driver a nd receiver in one device. It also provides very flexible configuration settings f or Driver Enable control a nd Receiver Ena ble control.
-40- The master node may drive its bus while a ny of the slave nodes are driving the lower pair , making this 4-wire network a full-duplex communi- cation cha nnel. All communication occurs from master to slave or slave to ma ster , so a ny peer to peer communications must be routed through the master node.
-41- 3.6 Summary of the Converter Application s The common topologies i mplemented with RS-485 a nd RS-422 are: 1. RS-422 point to point in 2 -wire circuit 2. RS-422 2-wire multi-drop network 3. RS-485 2-wire multi-drop network 4. RS-485 half-duplex bidirectional network in 2-wire topology 5.
-42- 4 LED Indicators The following figure shows the locations of the LED indicators: 4.1 LED Indicators LED DISPLA Y ST A TE INTERPRET A TION P W R Power status O N The device is powered on.
-43- 5 Fa ctory Default Conf iguration The following ta ble lists the fa ctory default settings f or configuration DIP SW : SW Name Default Setting SW1-2&1 4W 4-wire (RS-485/422 driver receiver se.
An important point after buying a device KTI Networks KSC-240 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought KTI Networks KSC-240 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data KTI Networks KSC-240 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, KTI Networks KSC-240 you will learn all the available features of the product, as well as information on its operation. The information that you get KTI Networks KSC-240 will certainly help you make a decision on the purchase.
If you already are a holder of KTI Networks KSC-240, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime KTI Networks KSC-240.
However, one of the most important roles played by the user manual is to help in solving problems with KTI Networks KSC-240. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device KTI Networks KSC-240 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
