User`s Manual
Contents
1. device connected to operate under most conditions without additional loopback connections DCE DTE switch provides convenient way to configure the BaudMaster as a DCE or DTE device This allows the use of a straight through or null modem RS 232 cable Units shipped from 9876 the factory are set for DCE operation DB9 Female RS 232 Cable B DTE DCE 2 RxD 2 TxD 3 TxD 3 RxD 5 GND 5 GND DCE DTE Switch Copyright 2004 duTec 1 800 248 1632 19 BM485 User s Manual BaudMaster Power Supply Wiring The BaudMaster incorporates special power converter circuitry that allows it to be powered by a wide range of AC or DC power The maximum current draw is 170 milliamps Power can be supplied to the unit with an AC adapter available from duTec The unit can also be powered by any power supply that meets the specifications as shown below Optional AC Adapter Supplied by Electronic Solutions 0 or A9 6 ZH 09 05 AvZ 4 7 24 Volts AC 9 36 Volts DC 170mA Earth Ground optional The Earth Ground terminal is connected to the stainless steel chassis and is provided as a convenient way to secure the chassis to earth ground This may be desirable or required for some applications 20 Copyright 2004 duTec 1 800 248 12. straight through or null modem cable Echo With the echo feature enabled data is echoed back to the equipment side port This may desirable or required with some protocols The default is no echo Baud Rate Independent No switches or jumpers to set Automatically adapts to all standard and non standard baud rates up to 115 200 baud Versatile Power Supply The unit can be powered by a wide range of AC or DC voltages Wall plug adapters are available from duTec or others A pluggable screw terminal is also provided for use with other power supplies 7 to 24 volts AC or 9 to 36 volts DC 170mA max Pluggable Terminal Blocks Industrial rated pluggable terminal blocks for ease of installation or removal Accepts up to 16 AWG wire DIN Rail Mounting DIN Rail mounting accessories available for easy wiring 2 Copyright 2004 duTec 1 800 248 1632 BaudMaster Specifications Isolation Baud Rate Enclosure Dimensions RS 485 422 RS 485 Enable RS 232 Operating Temperature Storage Temperature Humidity Compliance Accessories Surge Protection BM485 User s Manual Omni isolation provides 4 way isolation using optical and transformer technology Equipment to Line Equipment to Power Line to Power Equipment to Chassis Line to Chassis Power to Chassis Hi Pot 2000 Vs for 1 minute 5500 VDC for 1 second Leakage Current Less than 50uA 2000 VAC 60 Hz 5500 VDC Height 4 60 inches 117mm
3. BM485 User s Manual 24 BaudMaster Copyright 2004 duTec 1 800 248 1632 BaudMaster BM485 User s Manual Cable RS 422 and RS 485 communications requires twisted pair low capacitance cable with a nominal impedance of 100 120 ohms The decision to use shielded cable depends on the application RS 422 minimum cable requirements Shielded two twisted pair with drain wire use drain wire for signal ground Unshielded three twisted pair using the extra pair for signal ground RS 485 minimum cable requirements Shielded one twisted pair with drain wire use drain wire for signal ground Unshielded two twisted pair using the extra pair for signal ground Belden Shielded RS 422 Cable D C Outside Impedance Capacitance Propagation Resistance Diameter Velocity 24 0 0 1000 291 in 15 5 pF ft 66 78 7 7 39 mm 59 1 pF m 24 0 0 1000 270 in 12 5 pF ft 78 78 7 6 86 mm 41 0 pF m 24 0 0 1000 343 in 12 5 pF ft 7896 78 7 Q km 8 71 mm 41 0 pF m 24 0 0 1000 248 in 13 pF ft 78 78 7 6 30 mm 42 5 pF m 24 0 0 1000 317 in 12 5 pF ft 7896 78 7 Q km 8 05 mm 41 0 pF m 24 0 0 1000 340 in 12 8 pF ft 66 78 7 Q km 8 64 mm 42 0 pF m 24 0 0 1000 227 in 12 95 pF ft 7896 78 7 Q km 5 77 mm 42 0 pF m 23 3 0 1000 271 in 12 5 pF ft 7896 76 4 O km 6 88 mm 41 0 pF m Belden Shielded RS 485 Cable D C Outside Impedance Capacitance Propagation Resistance Diameter Velocity 65 0 1000 235 in 11 0
4. Depth 4 16 inches 106mm Width 1 00 inch 25mm Supports RS 422 4 or 2 wire and RS 485 Auto Detect Input Resistance 12K to 15K ohms 1 unit load Drive Up to 32 unit loads 1 unit load 12K ohms Connector Pluggable Terminal Blocks 16 to 24 AWG Biasing Resistors Selectable 100K or 1 2K ohms Terminating Resistors Selectable NONE AC or DC Automatic Patented ADFC technology automatically controls data direction flow Supports TxD RxD DTR DSR RTS CTS DCD Connector DB9 Male or Female DCE or DTE selectable 20 C to 80 C 45 C to 100 C 5 to 95 RH Pending CE FCC Class A CUL UL Safety Class 11 DIN Rail Mounting Kit Part No DA 01 AC Power Adapter North American 120 VAC Input AC Power Adapter European Universal Input 90 264 VAC Input 600 Watt Transient Voltage Suppression on RS 485 422 inputs and outputs RS 232 inputs and outputs and Power input Indicators Equipment Side Power RxD TxD LEDs Line Side Power RxD TxD LEDs Copyright 2004 duTec 1 800 248 1632 3 BM485 User s Manual Dimensions 4 151 in 105 4 mm 47 0 mm 52 7 mm 4 592 in 116 6 mm 3 868 in 98 2 mm 150 in Dia 3 8 mm Dia 275 in Dia 7 0 mm Dia 4 151 in 105 4 mm 0 985 in 25 0 mm B BaudMaster 0 985 in 25 0 mm 3 956 in 100 5 mm 8 1 mm 4 Copyright 2004 duTec 1 800 248 1632 BaudMaster BM485 User s Manual Description T
5. RS 485 422 TERMINATION PLUG U Multi mode Converter Repeater P Parallel Entry RS 232 to RS 485 422 Converter V Vertical Perpendicular Entry R RS 485 422 Repeater Converter ISOLATION Isolated Not Isolated Auto Isolated Description Max Temperature Enable Range in feet BM485 UIP RS 485 422 232 MULTIMODE 115200 4000 25 C TO 80 C BM485 CIP RS 232 to RS 485 422 115200 4000 25 C TO 80 C YES YES BM485 RIP RS 485 422 to RS 485 422 115200 25 C TO 80 C BM485 UIV RS 485 422 232 MULTIMODE 115200 4000 25 C TO 80 C BM485 CIV RS 232 to RS 485 422 115200 4000 25 C TO 80 C BM485 RIV RS 485 422 to RS 485 422 115200 4000 25 C TO 80 C BM485 UNP YES NO RS 485 422 232 MULTIMODE 115200 25 C TO 80 C BM485 CNP RS 232 to RS 485 422 115200 4000 25 C TO 80 C BM485 RNP RS 485 422 to RS 485 422 115200 4000 25 C TO 80 C BM485 UNV RS 485 422 232 MULTIMODE 115200 4000 25 C TO 80 C YES NO BM485 CNV RS 232 to RS 485 422 115200 4000 25 C TO 80 C BM485 RNV RS 485 422 to RS 485 422 115200 4000 25 C TO 80 C Optional Equipment Model Description DA 01 DIN Rail Adapter Includes adapter and mounting screws BM PS120 Wall Plug Adapter 120VAC 3W BM PS220 Wall Plug Adapter 220VAC 3W Wall Plug Adapter Universal 90 264VAC 3W GC 9M Gender Changer 9 pin D sub Male Male CA 9F9M Cable DB 9 Serial Male Female for RS 232 Copyright 2004 duTec 1 800 248 1632 23
6. Duplex Two Twisted Pair BM485 User s Manual Equipment Side RS 232 RS 422 BaudMaster Equipment Side RS 232 RS 422 BaudMaster 11 BM485 User s Manual BaudMaster A Troubleshooting Tool Equipment Side Monitor the data with a notebook computer BaudMaster gt 00AA1 AFF00 Dutec I O Plexer Control Computer Connect to either the Rx pair or Tx pair to monitor the RS 422 data at any point on the lines Use a BaudMaster on an RS 485 network to monitor bidirectional data to any piece of equipment Just add a parallel set of wires from the BaudMaster to the RS 485 connection on your equipment 12 Copyright 2004 duTec 1 800 248 1632 BaudMaster BM485 User s Manual Configuration The BaudMaster can be configured to accommodate various networks cabling and protocols This section describes how to set up the RS 485 422 and RS 232 options Ee Equipment Side Equipment Side DCE DTE RS 485 422 RS 422 Switch Bias amp Termination Bias amp Termination Erst B Go Line Side Line Side RS 485 422 RS 422 Bias amp Termination Bias amp Termination DCE DTE Switch The RS 232 port can be configured as a DTE Data Terminal Equipment or DCE Data Communications Equipment device A DTE device is usually a PC or terminal and has a male connector The DCE device is normally a remote device such as a modem and has a female connector For more information see the R
7. for any inaccuracies Information in this document is subject to change without notice No part of this document may be reproduced or transmitted in any form or by any means electronic or mechanical for any purpose without the express written permission of duTec Inc Copyright O 2004 duTec Inc All rights reserved Table of Contents Introduction 1 Features oies ss 1 2 Specifications 3 4 Description 5 12 Configuration 13 16 WARING 17 20 Ordering Information 23 BaudMaster BM485 User s Manual Introduction RS 232 RS 485 and RS 422 are among the most successful and widely used serial interface standards for industrial applications Although these standards are not directly compatible with each other it is often necessary to communicate between them In order to convert RS 232 signals to RS 485 or RS 422 signals a special device is required The BaudMaster family of interface converters are designed to easily convert data between all of these standards The BaudMaster automatically controls the direction of serial data eliminating the need for software flow control Using a patented technique Automatic Data Flow Control ADFC BaudMaster interface converters automatically adapt to any baud rate up to 115 200 baud and is independent of communications protocol The BaudMaster can be used in you
8. in that the transmitter is enabled for the entire transmission and is independent of baud rate Copyright 2004 duTec 1 800 248 1632 5 BM485 User s Manual BaudMaster LED Indicators Depending on the model the BaudMaster has up to six status LED indicators These indicators show the status of data communications and power and are handy for verifying operation and troubleshooting network problems BaudMaster with ADFC Technology and Omni isolation d lec Equipment Side 800 248 1632 Power LED Equipment Equipment Side Transmit LED Equipment Side Receive LED Line Side Transmit LED Line Side Receive LED Line Side Line Side Power LED Isolated Serial Data Interface Converter for RS 232 422 485 Communications Patent No 5 729 547 Equipment Side LED Name LED Function 5V Red indicates the Equipment Side power is on TxD Transmit Red indicates that the Equipment Side is sending data to the port RxD Receive Red indicates that the Equipment Side is sending data to the Line Side Line Side LED Name LED Function 5V Red indicates the Line Side power is on TxD Transmit Red indicates that the Line Side is sending data to the port RxD Receive Red indicates that the Line Side is sending data to the Equipment Side 6 Copyright 2004 duTec 1 800 248 1632 BaudMaster BM485 User s Manual Typical Applications Isolators Repeaters Converters R
9. receiver is disabled when the transmitter is enabled and the data is not returned Note Do not enable echo in RS 422 full duplex networks To access the jumper remove the two pluggable terminal blocks and the two screws as shown Remove the stainless steel bottom cover to access the jumper Echo Enable Jumper Jumper shown in Disable factory default position Move jumper to enable Echo feature 16 Copyright 2004 duTec 1 800 248 1632 BaudMaster Wiring Line Side RS 485 Wiring When using the Line Side RS 485 option you will need to connect three wires to the BaudMaster RS 485 terminal block from opposite connection Connect Data to A Data to B and Circuit Ground to CG2 See page 23for recommendations on selecting the appropriate RS 485 cable Line Side RS 422 Wiring When using the Line Side RS 422 option you will need to connect five wires to the BaudMaster RS 422 terminal block from the opposite connection Connect Transmit Data to A Transmit Data to B Circuit Ground to CG2 Receive Data to A and Receive Data to B See page 23 for recommendations on selecting the appropriate RS 422 cable Copyright 2004 duTec 1 800 248 1632 Data Data Circuit Ground TxD TxD Circuit Ground RxD RxD BM485 User s Manual 5 apis aul epis eur 17 BM485 User s Manual Eq
10. 632 BaudMaster BM485 User s Manual Termination Plugs The termination plugs are available in two styles The parallel style allows the wire to enter the terminals parallel to the unit This style is standard and probably preferable in most cases Parallel Style Termination The vertical style allows the wire to enter the terminals perpendicular to the unit Vertical Style Termination The termination style is specified in the BaudMaster order number See the Ordering Information section on page 23 Copyright 2004 duTec 1 800 248 1632 21 BM485 User s Manual DIN Rail Adapter DA 01 BaudMaster Fasten the optional DA 01 DIN Rail Adapter to the BaudMaster with the mounting screws provided Mounts to standard DIN rail profiles 35 mm x 7 5 mm 35 mm x 15 mm and 32 mm x 15 mm G profile DIN Rail 35 mm x 7 5 mm DIN Rail 35 mm x 15 mm DIN Rail 1 32 mm x 15 mm G Profile DIN e 22 Copyright 2004 duTec 1 800 248 1632 BaudMaster BM485 User s Manual Ordering Information The BaudMaster is available in 12 different configurations Choose the model that best fits your application needs See the website at www baudmaster com or call 800 248 1632 for current pricing BM485 UI P TYPE
11. BM485 Serial Data Interface Converter User s Manual Rev 1 0 6 28 04 V dulec Innovative I O Since 1977 6979 Wales Road Northwood Ohio 43619 Phone 800 248 1632 or 419 666 4700 Fax 419 666 4702 website www baudmaster com email info dutec net email support dutec net BaudMaster BM 485 Isolated Serial Data Interface Converter User s Manual 5 Year Warranty Interface converter products sold by duTec Inc are warranted against defects in materials and workmanship for five years from the date of purchase There are no other express or implied warranties and no warranty of merchantability or fitness for a particular purpose During the warranty period duTec will repair or at its option replace components that prove to be defective provided the unit 1s shipped prepaid to the manufacturer directly or via and authorized distributor Not covered by this warranty are defects caused by modification misuse or accidents and any further damage caused by inadequate packing for service return duTec s obligation is restricted to the repair or replacement of defective parts and under no circumstances will duTec be liable for any other damage either direct or consequential Trademarks The duTec logo BaudMaster ADFC Omni isolation and I O PLEXER are trademarks of duTec Inc Notice to the User The information contained in this manual is believed to be correct However duTec Inc assumes no responsibility
12. S 232 section on page 19 Copyright 2004 duTec 1 800 248 1632 13 BM485 User s Manual BaudMaster Termination Options The BaudMaster provides several options for terminating an RS 485 or RS 422 bus The decision of what kind of termination depends on data rate cable length and other nodes on the bus Bias resistors and terminating resistors are used to maintain the proper idle voltage state and to prevent transmission line reflections The kind of termination is selected with the DIP switches RS 485 Transceiver Termination Light Bias Light Bias Light Bias No Termination DC Termination AC Termination Heavy Bias Heavy Bias Heavy Bias No Termination DC Termination AC Termination Copyright 2004 duTec 1 800 248 1632 BaudMaster BM485 User s Manual RS 422 Receiver Termination Light Bias Light Bias Light Bias No Termination DC Termination AC Termination ON ON 123 4 Heavy Bias Heavy Bias Heavy Bias No Termination DC Termination AC Termination ON ON Note If you are adding the BaudMaster to an existing network and are not sure what kind of termination to use select Light Bias No Termination Copyright 2004 duTec 1 800 248 1632 15 BM485 User s Manual BaudMaster Echo Mode Echo mode keeps the line side RS 485 receiver always enabled Therefore data transmitted to the equipment side RS 232 or RS 485 is returned This may be required for some software protocols With echo off the
13. S 232 to RS 422 RS 485 to RS 422 Isolated Converter Isolated Converter Equipment Equipment RS 232 BaudMaster BaudMaster RS 485 to RS 422 RS 485 to RS 485 Isolated Converter Isolated Repeater Equipment Equipment Side BaudMaster BaudMaster Copyright 2004 duTec 1 800 248 1632 7 BM485 User s Manual BaudMaster Short Haul Modems Full Duplex Short Haul Modem Equipment Side RS 232 RS 232 TM Full Duplex TM BaudMaster Two Twisted BaudMaster Pair RS 232 Half Duplex Short Haul Modem Equipment Side RS 232 TM Half Duplex T BaudMaster One Twisted BaudMaster Pair 8 Copyright 2004 duTec 1 800 248 1632 BaudMaster BM485 User s Manual Line Extenders Half Duplex Line Extender Equipment i i Equipment TM Half Duplex BaudMaster One Twisted BaudMaster Pair Full Duplex Line Extender Equipment i Equipment i i Side Full Duplex BaudMaster Two Twisted BaudMaster Pair Copyright 2004 duTec 1 800 248 1632 9 BM485 User s Manual BaudMaster RS 485 Y Networks Equipment Side Equipment BaudMaster RS 485 Line Equipment Side BaudMaster Half Duplex One Twisted Pair BaudMaster 10 Copyright 2004 duTec 1 800 248 1632 BaudMaster RS 422 Y Networks Equipment RxD RS 422 TxD TM BaudMaster Copyright 2004 duTec 1 800 248 1632 Full
14. he BaudMaster Model BM485 UIP is our most versatile interface converter It can operate in one of the following six modes as a converter isolator or repeater RS 232 to RS 485 RS 232 to RS 422 RS 485 to RS 422 RS 485 to RS 485 or RS 422 to RS 422 The diagram below shows the function blocks signal paths and isolation Equipment Side Isolated Regulated Power Supply mul Supply pisse 2000 Isolation Barrier Isolated Power Supply Omni isolation provides full galvanic isolation using optical and transformer technology Equipment to Line Equipment to Power Line to Power Equipment to Chassis Line to Chassis Power to Chassis Full galvanic isolation breaks the signal power and ground paths using transformer and optical technology by allowing data to flow between systems but not electrical current This eliminates all grounding and surge problems The ADFC Automatic Data Flow Control function block controls the flow of serial data ADFC technology uses a technique that continuously monitors data and automatically senses and controls the direction of RS 485 data eliminating the need for software control Other techniques control the flow of data with a precision timer that must be configured for the correct baud rate or only enables the transmitter on a bit and relies on the biasing resistors to maintain the correct voltage for a zero bit ADFC is superior to both of these methods
15. pF ft 7896 213 O km 5 97 mm 36 1 pF m 24 0 Q 1000 340 in 12 8 pF ft 66 78 7 Q km 8 64 mm 42 0 pF m Category 3 CAT 3 and Category 5 CAT 5 cables are good choices for unshielded RS 485 and RS 422 cable Copyright 2004 duTec 1 800 248 1632 25
16. r industrial applications without any hardware or software changes Features Omni Isolation Optical and transformer isolation technology provide up to 2000 volts of signal and ground isolation between the computer and equipment Eliminates ground loops that destroy computer ports and reduce serial communications reliability See page 5 ADFC ADFC Automatic Data Flow Control uses a technique protected by U S patent no 5 729 547 that automatically senses and controls the direction of RS 485 data eliminating the need for software control 3 in 1 Signal Conversion Converts RS 232 to RS 485 RS 232 to RS 422 or RS 485 to RS 422 Automatically senses RS 422 four wire operation Status LEDs Status LEDs are provided on both sides of the isolation for the Power Transmit and Receive signals These are handy for verifying operation and troubleshooting network problems Transient Voltage Protection All signal and power lines are protected against transient Copyright 2004 duTec 1 800 248 1632 1 BM485 User s Manual BaudMaster voltages Switch Selectable Termination and Bias Resistors Network termination and bias can easily be configured with DIP switches available from the outside the converter case The switches are clearly identified on the label for easy setup DTE DCE Selection A switch easily makes the BaudMaster either a DTE or a DCE device so the unit will communicate with a DCE or DTE device or operate with a
17. uipment Side RS 485 Wiring When using the Equipment Side RS 485 option you will need to connect three wires to the BaudMaster RS 485 terminal block from opposite connection Connect Data to A Data to B and Circuit Ground to CG2 See page 23 for recommendations on selecting the appropriate RS 485 cable Equipment Side RS 422 Wiring When using the Equipment Side RS 422 option you will need to connect five wires to the BaudMaster RS 422 terminal block from the opposite connection Connect Transmit Data to A Transmit Data to B Circuit Ground to CG2 Receive Data to A and Receive Data to B See page 23 for recommendations on selecting the appropriate RS 422 cable Data Data Circuit Ground TxD TxD Circuit Ground RxD RxD BaudMaster www baudmaster com Bias Term A A B Bias Term Side Connections 2 www baudmaster com Bias Term QOO OG a c 2 o o o B 7 Copyright 2004 duTec 1 800 248 1632 BaudMaster BM485 User s Manual RS 232 Connection The RS 232 connection uses a standard female 9 pin D Sub connector RS 232 Pinout CE sempre note 1 Pulled high with 4 7K Resistor Circuit Ground Pins 1 4 6 7 and 8 ted to th t levels to allow th ins 1 4 6 7 and 8 are connected to the correct levels to allow the 54321
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