KTI Networks KSC-240
Contents
1. RS 422 485 RS 422 485 interface interface HAIDE BITX 5 Enable TAIRX 8 BIRX IG RXC receiver RXE controlled by RTS and ADC Receiver is enabled always RXC setting enable to use the same TXC logic but reverse it as RXC for the RS 485 422 receiver control It means when the driver is enabled the receiver is disabled The receiver is enabled when the driver is dis abled This setting is applied when a half duplex communication is adopted 25 SW1 8 amp 7 BIAS D RS 485 422 receiver line bias is disabled BIAS E RS 485 422 receiver line bias is enabled RS 422 485 interface TX TX ji RX RX BIAS D No line bias RS 422 485 interface A TX TX RX RX Oo BIAS E enable line bias The line bias is used to maintain the proper idle state voltage to the idle condition when no driver is enabled on the bus These bias resistors are pull up resistors on the data B line and pull down resistors to ground on data A line In 4 wire configuration the bias resistors are placed on the receiver lines BIAS D disables the internal BIAS resistors on receiver lines BIAS E setting enables internal bias resistors The bias configuration can support up to 30 receiver nodes with no terminators If the bias configuration is not proper for your physical topology set to BIAS D and use exter2. oar H i ise Whey A JA 39 The master node may drive its bus while any of the slave nodes are driving the lower pair making this 4 wire network a full duplex communi cation channel All communication occurs from master to slave or slave to master so any peer to peer communications must be routed through the master node RS 422 485 O RS 232 device To convert an RS 232 device into a Master node in RS 485 4 wire net work the configuration is SW1 2 amp 1 4W Select 4 wire topology SW1 4 TXE Enable Driver always SWI1 6 RXC Enable RTS ADC Control for Receiver SW1 5 RIS E Use RTS control optional SW2 1 SDE Or use ADC control optional SW2 2 8 Baud Baud when ADC control is enabled optional SW1 3 TD Disable internal terminator optional To convert an RS 232 device into a Slave node in RS 485 4 wire network the configuration is SW1 2 amp 1 4W Select 4 wire topology SW1 4 TXC Enable RTS ADC Control for Driver SWI1 6 RXE Enable Receiver always SW1 5 RIS E Use RTS control optional SW2 1 SDE Or use ADC control optional SW2 2 8 Baud Baud when ADC control is enabled optional SW1 3 TD Disable internal terminator optional ETE 3 6 Summary of the Converter Applications The common topologies implemented with RS 485 and R 422 are 1 RS 422 point to point in 2 wire circuit 2 RS 422 2 wire multi
3. RS 422 485 O IA T B The configuration for a RECEIVER node is SW1 4 SW1 6 SW1 5 SW2 1 TXC RXE RTS D SDD Enable RTS ADC Control for Driver Enable Receiver always Disable RTS control Disable ADC control 3 2 RS 422 Multi drop Network In this topology there is only one driver sending to one or more receiv ers One termination resistor is recommended at the extreme end of the bus to eliminate reflections Up to 10 receivers are permitted under RS 422 Multiple receive only nodes may be used for point to multipoint communications pa Master Up to 10 slaves for RS 422 Slave Slave Slave Slave Slave The converter can convert an RS 232 device into a Master node in this multi drop network RS 232 device The configuration for MASTER node is SW1 4 TXE SW1 6 RXC SWI 5 RIS D SW2 1 SDD Enable Driver always Enable Receiver RTS ADC Control Disable RTS control Disable ADC control It also can convert an RS 232 device into a SLAVE node in this multi drop network RS 232 device RS 422 485 O The configuration for a SLAVE node is SW1 4 SW1 6 SW1 5 SW2 1 TXC RXE RTS D SDD Enable RTS ADC Control for Driver Enable Receiver always Disable RTS control Disable ADC control 35 3 3 RS 485 Multi drop Network This topology is similar to RS 422 multi drop However up
4. 1995 TEC 61000 4 3 1995 TEC 61000 4 4 1995 TEC 61000 4 5 1995 TEC 61000 4 6 1996 TEC 61000 4 8 1993 ESD Test RS Test EFT BURST Test Surge Test CS Test Magnetic Field IEC 61000 4 11 1994 Volatge Int Dips T1 2 Installation 2 1 Unpacking Check that the following components have been included e Information CD e The device unit e DIN rail mounting bracket If any item is found missing or damaged please contact your local reseller for replacement The following are available optional accessories e Panel Mounting Bracket The bracket is used for mounting the device on a panel surface e Commercial rated AC power adapters 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 2 2 Safety Cautions To reduce the risk of bodily injury electrical shock fire and damage to the equipment observe the following precautions e Do not service any product except as explained in your system documentation e 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 pl
5. drop network 3 RS 485 2 wire multi drop network 4 RS 485 half duplex bidirectional network in 2 wire topology 5 RS 485 full duplex bidirectional network in 4 wire topology The converter is equipped with functionality and flexibility to convert an RS 232 device to a node in any one of the above topologies 4T 4 LED Indicators The following figure shows the locations of the LED indicators 4 1 LED Indicators LED PWR 232 TX 232 RX Indicators DISPLAY Power status RS 232 TX RS 232 RX RS 485 Driver Enable LED STATE ON OFF ON OFF ON OFF ON OFF INTERPRETATION The device is powered on The device is powered off RS 232 TX data is present No RS 232 TX data RS 232 RX data is present No RS 232 RX data The driver is enabled The driver is disabled and is in tri state high impedance ya 5 Factory Default Configuration The following table lists the factory default settings for configuration DIP SW SW Name Default Setting SW1 2 amp 1 4W 4 wire RS 485 422 driver receiver separated SW1 3 TD Of Disable RS 485 422 receiver terminator SWI1 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 driver SWI1 6 RXC Off RS 485 422 receiver enable control by RTS or ADC SW1 8 amp 7 BIAS D Off Disable RS 485 422 line bias SW2 1 SDE On Enable ADC control for RS 485 422 driver SW2 2 Off Disable ADC Timin
6. iese ese eek ee ee ee ee ee 38 3 5 RS 485 Full duplex 4 wire Network ese ee ee ee ke ee ee ee 39 3 6 Summary of the Converter Applications sesse ee ee ke 41 A LED Indieators wiseciiccccencceccvenexsitessceasessciae dese 42 4 1 LED Indicator8 iss se ee ee EE cee eae GEES GE Ys Ge Hie be Se Nee ek KERE EERS EG 42 5 Factory Default Configuration cccssssssee 43 1 Introduction The industrial converter is designed to convert RS 232 signals to opti cally isolated balanced full or half duplex RS 422 or RS 485 signals at baud rate up to 115 2Kbps It features RTS control design which allows software to control RS 485 transmission With smart ADC Auto Data Control design the converter can uses send data signal to control RS 485 transmission automatically so no software control is required in RS 485 mode The Din rail mountable design makes it ideal for industrial cabinets and enclosures Further more designs such as signal protec tion 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 follow ing enhanced features exceeding that of commercial media converters e High and wide operating Temperature e Wide operating voltage range for DC power input e Power input interface Industrial screw terminal block and DC power jack for external commercial power adapter as option e DIN rail mou
7. is useful when the converter is installed at the end of a RS 485 or RS 422 bus If the internal 120 Ohm terminator is not appropriate for your application use T D to disable it and use external one 23 SW1 4 TXC RS 485 422 driver enable control by RTS or ADC TXE RS 485 422 driver is forced to enable RS 422 485 RS 422 485 interface interface A TX _ A Tx wn o x RX BITX aa BITX o RTS nable 2 CrS A RX AIRX 8 B RX B RX IG IG TXC TXE controlled by RTS and ADC Driver is enabled always TXC setting enables RS 485 422 driver to be controlled by RTS method or ADC method RTS method is described later Refer to SW2 settings for more description about ADC method TXE setting forces RS 485 422 driver to be enabled always This setting is applied when Master function is required in an RS 485 RS 422 multi drop bus DA wm W1 5 RTS D Disable RTS control for RS 485 422 driver RTS E Enable RTS control for RS 485 422 driver RTS control method allows the connected RS 232 device such as a PC to control RTS signal CTS input at the converter end by software to enable or disable RS 485 422 driver RTS D setting is used to disable RTS control method SW1 6 RXC RS 485 422 receiver enable control by RTS or ADC RXE RS 485 422 receiver is forced to enable
8. to 32 receiv ers are permitted under RS 485 This may be used for point to multipoint communications j Up to 32 slaves Master for RS 485 S EE Slave Slave Slave Slave Slave Lawd The converter can convert an RS 232 device into a Master node in this multi drop network as illustrated below RS 232 device be The configuration for MASTER node is SW1 4 TXE Enable Driver always SW1 6 RXC Enable Receiver RTS ADC Control SW1 5 RIS D Disable RTS control SW2 1 SDD Disable ADC control It is also able to convert an RS 232 device into a SLAVE node in this multi drop network RS 232 device RS 422 485 The configuration for a SLAVE node is SW1 4 SW1 6 SW1 5 SW2 1 TXC RXE RTS D SDD Enable RTS ADC Control for Driver Enable Receiver always Disable RTS control Disable ADC control Te 3 4 RS 485 Half duplex 2 wire Network This is the typical RS 485 topology It takes advantage of RS 485 capabil ity to support multiple drivers on a bus RS 422 devices should not be used in this configuration This topology enables bidirectional communi cation from many nodes over long distances at low to medium data rates all on a single pair of wires 2 wire al It can implement a very functional very flexible and very economical data network Becaus
9. Connection Distance 15 meters High ESD Tolerance 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 Type Balanced differential lines Data Speed 115Kbps Standard EJA 485 EIA 422 High ESD Tolerance 15KYV on driver and receiver lines Overvoltage Protection Cutoff if over 28V LED Indicators LED DISPLAY STATE PWR Power status ON OFF 232TX RS 232TX BLINK 232RX RS 232RX BLINK TXC RS 485 422 TX control ON OFF INTERPRETATION Power on Power off RS 232 TX Activity RS 232 RX Activity RS 485 driver is enabled RS 485 driver is disabled Configuration DIP SW Settings 4 wire RS 485 422 driver receiver separated 2 wire RS 485 422 driver receiver connected Disable RS 485 422 receiver terminator Enable RS 485 422 receiver terminator RS 485 422 driver enable control by RTS or ADC RS 485 422 driver is forced to enable Disable RTS control for RS 485 422 TX RX Enable RTS control for RS 485 422 TX RX RS 485 422 receiver enable control by RTS or ADC RS 485 422 receiver is forced to enable RS 485 422 line bias is disabled RS 485 422 line bias is enabled Disable ADC control for RS 485 422 TX RX Enable ADC control for RS 485 422 TX RX ADC Timing parameter for RS 232 baud 1200 ADC Timing parameter for RS 232 baud 2400 ADC Timing parameter for RS 232 baud 4800 A
10. DC Timing parameter for RS 232 baud 9600 ADC Timing parameter for RS 232 baud 19200 ADC Timing parameter for RS 232 baud 38400 SW Name State Function SW1 2 amp 1 4W Off 2W On SW1 3 T D Off T E On SW1 4 TXC Off TXE On SW1 5 RTS D Off RTS E On SW1 6 RXC Off RXE On SW1 8 amp 7 BIAS D Off BIAS E On SW2 1 SDD Off SDE On SW2 2 1200 On SW2 3 2400 On SW2 4 4800 On SW2 5 9600 On SW2 6 19200 On SW2 7 38400 On SW2 8 115200 On ADC Timing parameter for RS 232 baud 115200 DC Power Interface Interface Operating Input Voltages Power consumption Basic Information Conversion Optical Isolation Mechanical Dimension base Housing Mounting Support Weight Environmental Operating Temperature Storage Temperature Relative Humidity Screw type terminal block 1 Two pairs for power wire cascading 2 One pair for power failure relay output DC Jack D6 3mm D2 0mm 7V 4 30V 45 0 6W 7 5VDC 12VDC 30VDC input RS 232 RX data to RS 485 422 TX data RS 485 422 RX data to RS 232 TX data Isolated between RS 232 and RS 485 422 3000VDC rms W 28mm x D82mm x H 95mm Enclosed metal with no fan DIN rail mounting Panel mounting 240g 20 C 70 C 20 C 85 C 5 90 Certificate FCC CE EMC CE LVD Safety EN 50081 1 1992 Part 15 Class B EMI EN5008 1 1 Class B EMS EN55024 EN 60950 EN55022 1994 A1 1995 A2 1997 EN61000 3 2 2000 EN61000 3 3 1995 A1 2001 EN 55024 1998 A1 2001 TEC 61000 4 2
11. NETWOR Industrial RS 232 to RS 485 422 Converter KSC 240 Installation Guide DOC 070412 KSC 240 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 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 PO BOX 631008 Houston Texas 77263 1008 Phone 713 2663891 Fax 713 2663893 E mail kti ktinet com URL http www ktinet com International Fax 886 2 26983873 E mail kti ktinet com tw URL http www ktinet com tw 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 C indicates compliance of this equipment to the EMC directive of the European Community Such ma
12. ce Computer or PC COM 9 pin DTE RS 232 Port PC COM port 9 pin DCE Connecting to 25 pin DTE device Computer or PC COM 25 pin DTE RS 232 Port PC COM port 9 pin DCE DB25 Female GT 3 Making RS 485 422 Connection EIA 485 TIA 485 Balanced differential interface defines the Physical layer signaling protocol is not defined EIA 485 specifies bidirectional half duplex data transmission Up to 32 transmitters and 32 receivers may be interconnected in any combination including one driver and multiple receivers multi drop or one receiver and multiple drivers EIA TIA 422 define a Balanced differential interface specifying a single unidirectional driver with multiple receivers up to 32 RS 422 will sup port Point to Point Multi Drop topology but not Multi Point EIA485 EIA 485 devices may be used in 422 circuits but E A 422 may not be used in 485 circuits because of the lack of an Enable line The published TIA EIA 485 and RS 422 standards define only the electri cal characteristics of the drivers and receivers as listed below They did not standardize such things such as cables and connectors pinouts bus arbitration signaling protocols or physical wiring topology Many dif ferent implementations have come into use and they are often incompat ible with each other Characteristics RS 422 RS 485 Mode of operation Differential Differential Unidirectional Full Duplex Multipoint Multipoint Allowed n
13. e signals travel in both directions this bus should be terminated at both ends to prevent reflections Only one node can drive the bus at a time making this a half duplex communication channel Only one driver should be active at any one time Therefore the transceivers used on a half duplex bus should support a Driver Enable function RS 422 485 TX Data he RX Data ee CTS H RS 232 device RS 232 38 The converter features RS 485 driver and receiver in one device It also provides very flexible configuration settings for Driver Enable control and Receiver Enable control The configuration for the node in RS 485 2 wire network is SW1 2 amp 1 2W Select 2 wire topology SW1 4 TXC Enable RTS ADC Control for Driver SW1 6 RXC Enable RTS ADC Control for Receiver SWI1 5 RIS E Use RTS control optional SW2 1 SDE Use ADC control optional SW2 2 8 Baud Baud when ADC control is enabled optional SWI1 3 T D Disable internal terminator optional 3 5 RS 485 Full duplex 4 wire Network The 4 wire network simplifies bus arbitration in multi node RS 485 A single Master node is the only driver allowed on the top most wire pair All other nodes listen to all data traffic that passes on the party line type multi drop bus Nodes may transmit on the lower pair of wires when addressed by the master node or by using a software token passing bus arbitration scheme
14. eiver is enabled Driver controlled by RTS Receiver is enabled when driver is disabled Driver controlled by ADC Receiver is enabled SW1 4 SW1 6 SWI1 5 SW2 1 Behavior TXE RXC RTS D SDD TXE RXE TXC RXE RTS D SDD TXC RXE RTS E SDD TXC RXC RTS E SDD TXC RXE RTS D SDE TXC RXC RTS D SDE Driver controlled by ADC Receiver is enabled when driver is disabled DIE 2 8 Making Serial RS 232 Connection RS 485 422 Interface RS 232 Interface o Typical RS 232 Interface DCE Pin Assignment Table DB Female Received Line Signa Detect 1 N ai DCE Ready Trars mitted Data fo 7 Clear to Send Received Data 3 Su Request to Send 9 DTE Ready 4 Signal Ground Ring Indicator Shield Pin Signal Name Input Output 1 Received Line Signal Detect Output 2 TX Data Output 3 RX Data Input 4 DTE Ready Input 5 Signal Ground Output 6 DCE Ready Output 7 Clear To Send Input 8 Request To Send Output 9 Ring Indicator Output 79 The RS 232 to RS 485 422 converter as an interface between an RS 232 device and RS 485 or RS 422 bus The connection is illustrated as fol lows RS 232 device RS 485 RS 422 bus The following signals received on the RS 232 interface are converted to RS 485 bus signals Pin Signal Name Input Output 2 TX Data Output 3 RX Data Input 7 Clear To Send Input 30 2 8 1 Cable for Connection to PC COM Port Connecting to 9 pin DTE devi
15. g for RS 232 baud 1200 SW2 3 Off Disable ADC Timing for RS 232 baud 2400 SW2 4 Off Disable ADC Timing for RS 232 baud 4800 SW2 5 9600 On Select ADC Timing for RS 232 baud 9600 SW2 6 Off Disable ADC Timing for RS 232 baud 19200 SW2 7 Off Disable ADC Timing for RS 232 baud 38400 SW2 8 Off Disable ADC Timing for RS 232 baud 115200 WER
16. ket The bracket support mounting the device on a plane surface securely The mounting steps are 1 Install the mounting bracket on the device unit 2 Screw the bracket on the device unit 3 Screw the device unit on a panel 4 Make sure that there are proper heat dissipation from and adequate ventilation around the device Do not place heavy objects on the device The screw locations and final dimension are shown below 84 8 12 9 i 114 0 100 0 95 0 UR 2 5 Applying Power The power specifications of the device are Operating Voltage 7 30VDC Power Consumption Max 0 6W 30VDC 12VDC 7 5 VDC The device provides two types of power interfaces terminal block and DC power jack for receiving DC power input from external power supply DC Power Terminal Pairs DC Jack T 7 5V 1 0A H OE Using Terminal Blocks Either DC1 interface or DC2 interface can be used to receive DC power from an external power system Or DC2 also can be used to deliver the power received on DC1 to next device in cascading way DC1 Vdc Positive terminal DC1 Vdc Negative terminal DC2 Vdc Positive terminal DC2 Vdc Negative terminal Three 2P terminal plugs are provided together with the device Two of the three plugs are used for DC1 and DC2 interfaces respectively The plug is shown below Power wires 24 12AWG IEC 0 5 2 5mm Install the power so
17. nal bias design according to your application 26 SW2 1 SDD Disable ADC control for RS 485 422 driver SDE Enable ADC control for RS 485 422 driver RS 422 485 interface B9IASP ZEZ SH SW2 2 8 baud timing SDC enable ADC method ADC method involves special circuitry that senses when data is received on the RS 232 interface and is being transmitted and automatically en ables the RS 485 422 driver as well as disabling the driver within one character length of the end of transmission This is a useful method for driver control since it needs no software involved In order to obtain an optimal performance set SW2 2 SW2 8 the asso ciated timing parameter for each RS 232 baud rate SW2 2 1200 ADC Timing parameter for RS 232 baud 1200 SW2 3 2400 ADC Timing parameter for RS 232 baud 2400 SW2 4 4800 ADC Timing parameter for RS 232 baud 4800 SW2 5 9600 ADC Timing parameter for RS 232 baud 9600 SW2 6 19200 ADC Timing parameter for RS 232 baud 19200 SW2 7 38400 ADC Timing parameter for RS 232 baud 38400 SW2 8 115200 ADC Timing parameter for RS 232 baud 115200 sds 2 7 1 RS 485 422 Driver and Receiver Control The following table lists the possible DIP SW settings related to RS 485 and RS 422 driver and receiver control Driver is enabled Receiver is disabled Driver is enabled Receiver is enabled Driver is disabled Receiver is enabled Driver controlled by RTS Rec
18. nting support for industrial enclosure e Screw panel mounting support for industrial enclosure Industrial rated Emission and Immunity performance 1 1 Features 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 interfaces Supports RS 422 2 wire RS 485 and 4 wire RS 485 network Supports full duplex or half duplex for RS 485 422 interface Provides remote RTS control for RS 485 transmission Provides ADC Auto Data Control for RS 485 transmission Designed for industrial environments with Surge ESD and isolation protection DIN rail and panel mounting support Wide power voltage range support Terminal block and Jack type power connectors Wide operating temperature range support Alarm relay output for device power failure Industrial rated emission and immunity performance 1 2 Specifications This figure shows the important components of the device DC Power Interface LED Terminal Indicators Plugs Screw holes x for mounting Configuration RS 232 Port DIN Rail DIP SW settings RS 485 422 Bracket Interface 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
19. o of Tx and Rx 1 Tx 10 Rx 32 Tx 32 Rx Maximum cable length 4000ft length 4000ft length Maximum data rate 10Mbps 10Mbps Minimum Tx driver output range 2V 1 5V Maximum Tx driver output range 5V 5V Maximum Tx short circuit current 150mA 250mA Tx load impedance 100 54 Rx input sensitivity 200mV 200mV Maximum Rx input resistance 4k 12k Rx input voltage range 7V 7V to 12V Rx logic high gt 200mV gt 200mV Rx logic low lt 200mV lt 200mV z372 RS 485 and RS 422 are in wide use as an interface for telecommunica tions industrial medical security and networking applications The fol lowing sections describe examples of some of popular physical topologies 3 1 RS 422 Point to Point Circuit This is the simplest configuration just one driver and one receiver If termination is used it is only required at the receiver Most RS 422 cables used to connect telecom or data com equipment are point to point links cos Driver Receiver The converter can convert an RS 232 device into a Driver node in this point to point circuit RS 232 device mal The configuration is SW1 4 TXE Enable Driver always SWI1 6 RXC Enable Receiver RTS ADC Control SW1 5 RTS D Disable RTS control SW2 1 SDD Disable ADC control 33 It also can convert an RS 232 device into a receiver node in this point to point circu it RS 232 device
20. ontact is disconnected with PF contact Note Be sure the voltage applied on PF contacts is within the specification of 30VDC IA max or 120VAC 0 5A max 21 2 7 DIP SW Configuration SW1 2 amp 1 4W 4 wire RS 485 422 driver receiver separated 2W 2 wire R 485 422 driver receiver connected RS 422 485 RS 422 485 interface interface HAMDE A TX T gt p TX B TX A RX A RX B RX B RX G G AW 4 Wire setting 2W 2 Wire setting 2W setting activates the internal connection between driver and re ceiver in RS 485 422 interface It simplifies the installation of the con verter in a 2 wire bus RS 422 usually uses 2 wire topology only RS 485 supports both 2 wire and 4 wire topology Gys SW1 3 TD Disable RS 485 422 receiver terminator TE Enable RS 485 422 receiver terminator RS 422 485 RS 422 485 interface interface TX A TX TX B TX RX RX RX RX Il olob lwe T D Terminator disabled T E Terminator enabled T E setting enables the internal 120 ohms terminator on the receiver interface A proper termination is important in a bus topology or multi drop network The terminator is a resistor added in parallel with the receiver s A and B lines in order to match the data line characteristic impedance and reduce signal reflection This setting
21. rking is indica tive that this equipment meets or exceeds the following technical stan dards 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 TEC 61000 4 2 1995 TEC 61000 4 3 1995 TEC 61000 4 4 1995 TEC 61000 4 5 1995 TEC 61000 4 6 1996 TEC 61000 4 8 1993 TEC 61000 4 11 1994 Table of Contents gele Vlei os EE EE EE N RE 5 TA dd SR EE EA AE RE EE NN 6 Ee tele RR ER EE AE EE VR EE HEN 7 2 Installation RE ER TERRE RR RE ERG Re ER OER ede 12 21 Unpacking RE EE N N OE AE 12 2 2 Safety Cautions is EE EE Ee sel clin anni cee 13 2 3 DIN Rail MOUNTING iis N ROES ERGE SEER KRANE ES SERE DEERE ERA RE Res Se Ee BEE 14 2 4 Panel Mounting ii EE ER GE RE GE De nul at ER EE ee SE 16 2 5 Applying POWEF i r ee esse ee ee ee ee Ge ee ee ee ee Ge ee ee ee de 18 2 6 Power Failure Relay Output ie esse see ee ee Re ee Re ee ge 21 2 7 DIP SW Configuration esse ee ee ee ee Re AA Re ee ee ee ee 22 2 7 1 RS 485 422 Driver and Receiver Control iese see ee ee 28 2 8 Making Serial RS 232 Connection ee Re Re 29 2 8 1 Cable for Connection to PC COM POT ee ee ee 31 3 Making RS 485 422 Connection ees sesse 32 3 1 RS 422 Point to Point Circuit sesse see ke ee Re ee ee 33 3 2 RS 422 Multi drop Network ees ee ee Re ee Re ee Re ke 34 3 3 RS 485 Multi drop Network e ese ee ee ee ee Re ee Re ee 36 3 4 RS 485 Half duplex 2 wire Network
22. ug 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 compo nents 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 lAs 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 DIN Rail Mounting Bracket 2 Attach bracket to the lower edge of the DIN rail and push the unit upward a little bit until the bracket can clamp on the upper edge of the DIN rail 3 Clamp the unit to the DIN rail and make sure it is mounted securely 4 Make sure that there are proper heat dissipation from and adequate ventilation around the device DIN Rail The final mechanical dimensions after installing DIN rail mounting bracket are 114 0 T5 2 4 Panel Mounting The device is provided with an optional panel mounting brac
23. urce wires with the plug properly Screw the wire with plug securely Then plug in DC1 contacts If cascading the power to next device is needed install the power wires and plug for another switch Then use DC2 contacts Note Only up to four device units can be cascaded to receive power from one main power input source 19 Using DC Power Jack DC Jack Connector JackD6 3mm D2 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 5V 1A Connect power adapter DC plug to the DC power jack of the converter before connecting to the AC outlet Connect the power adapter to the AC outlet Note Before you begin the installation check the AC voltage of your area The AC power adapter which is used to supply the DC power for the unit should have the AC voltage matching the commercial power voltage in your area Z0 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 PF Relay Output Use the provided 2P terminal plug for signal wiring and plug into the PF contacts The function is designed as Power is normal PF contact is shorted with PF contact Power failure PF c
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