Omega RS-232 Network Card User Manual
Contents
1. OMG USB 232 1 Page 12 sa WARRANTY DISCLAIMER OMEGA ENGINEERING INC warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase OMEGA s WARRANTY adds an additional one 1 month grace period to the normal one 1 year product warranty to cover handling and shipping time This ensures that OMEGA s customers receive maximum coverage on each product If the unit malfunctions it must be returned to the factory for evaluation OMEGA s Customer Service Department will issue an Authorized Return AR number immediately upon phone or written request Upon examination by OMEGA if the unit is found to be defective it will be repaired or replaced at no charge OMEGA s WARRANTY does not apply to defects resulting from any action of the purchaser includ ing but not limited to mishandling improper interfacing operation outside of design limits improper repair or unauthorized modification This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence of having been damaged as a result of excessive corrosion or current heat moisture or vibration improper specification misapplication misuse or other operating conditions outside of OM EGA s control Components which wear are not warranted including but not limited to contact points fuses and triacs OMEGA is pleased to offer suggestions on the use of its various products However OMEGA neit2. 4 Cartridge amp Strip Heaters 4 Immersion amp Band Heaters WF Flexible Heaters 4 Laboratory Heaters ENVIRONMENTAL MONITORING AND CONTROL 4 Metering amp Control Instrumentation 4 Refractometers 4 Pumps amp Tubing A Air Soil amp Water Monitors A Industrial Water amp Wastewater Treatment A pH Conductivity amp Dissolved Oxygen Instruments M3893 0303
3. e LED status indicators for USB Enabled TD and RD Connector Pin Assignments DB25 Male Name Pin Me GND Ground 7 O DCD __Data Carrier Detect 8 Input DSR__DataSetReady 6 hpt Note These assignments meet EIA TIA ANSI 574 DTE specifications for DB 25 type connectors OMG USB 232 1 Page 6 Specifications Specifications Environmental Specifications Specification Temperature Range 0 to 50 C 20 to 70 C 32 to 122 F 4 to 158 F Humidity Range 10 to 90 R H 10 to 90 R H Non Condensing Non Condensing Manufacturing e All Printed Circuit boards are built to UL 94V0 rating and are 100 electrically tested These printed circuit boards are solder mask over bare copper or solder mask over tin nickel Power Consumption Supply line 5 VDC 50 mA Mean Time Between Failures MTBF Greater than 150 000 hours Calculated Physical Dimensions Package Length 3 8 inches 9 66 cm Package Width 2 3 inches 5 84 cm Package Height 1 0 inches 2 54 cm OMG USB 232 1 Page 7 Appendix A Troubleshooting Appendix A Troubleshooting Serial Utility test software is supplied with the adapter and will be used in the troubleshooting procedures Using this software and following these simple steps most common problems can be eliminated without the need to call Technical Support 1 If your adapter isn t working first check to ma
4. GA ENGINEERING INC Copyright 2002 OMEGA ENGINEERING INC All rights reserved This document may not be copied photocopied reproduced translated or reduced to any electronic medium or machine readable form in whole or in part without the prior written consent of OMEGA ENGINEERING INC Where Do I Find Everything Need for Process Measurement and Control OMEGA Of Course Shop online at www omega com TEMPERATURE Zg Thermocouple RTD amp Thermistor Probes Connectors Panels amp Assemblies 4 Wire Thermocouple RTD amp Thermistor A Calibrators amp Ice Point References A Recorders Controllers amp Process Monitors 4 Infrared Pyrometers PRESSURE STRAIN AND FORCE 4 Transducers amp Strain Gages A Load Cells amp Pressure Gages 4 Displacement Transducers A Instrumentation amp Accessories FLOW LEVEL 4 Rotameters Gas Mass Flowmeters amp Flow Computers WF Air Velocity Indicators A Turbine Paddlewheel Systems A Totalizers amp Batch Controllers pH CONDUCTIVITY WF pH Electrodes Testers amp Accessories 4 Benchtop Laboratory Meters 4 Controllers Calibrators Simulators amp Pumps 4 Industrial pH amp Conductivity Equipment DATA ACQUISITION A Data Acquisition amp Engineering Software 4 Communications Based Acquisition Systems 4 Plug in Cards for Apple IBM amp Compatibles 4 Datalogging Systems A Recorders Printers amp Plotters HEATERS 4 Heating Cable
5. User s Guide ca www omega com e mail info omega com OMG USB 232 1 Single Port RS 232 to USB Adaptor OMEGAnet Online Service Internet e mail www omega com info omega com USA ISO 9001 Certified Canada Servicing North America One Omega Drive P O Box 4047 Stamford CT 06907 0047 TEL 203 359 1660 FAX 203 359 7700 e mail info omega com 976 Bergar Laval Quebec H7L 5A1 Canada TEL 514 856 6928 FAX 514 856 6886 e mail info omega ca For immediate technical or application assistance USA and Canada Mexico Benelux Czech Republic France Germany Austria United Kingdom ISO 9002 Certified Sales Service 1 800 826 6342 1 800 TC OMEGA Customer Service 1 800 622 2378 1 800 622 BEST Engineering Service 1 800 872 9436 1 800 USA WHEN TELEX 996404 EASYLINK 62968934 CABLE OMEGA En Espa ol 001 203 359 7803 e mail espanol omega com FAX 001 203 359 7807 info omega com mx Servicing Europe Postbus 8034 1180 LA Amstelveen The Netherlands TEL 31 0 20 3472121 FAX 31 0 20 6434643 Toll Free in Benelux 0800 0993344 e mail sales omegaeng nl Frystatska 184 733 01 Karvin Czech Republic TEL 420 0 59 6311899 FAX 420 0 59 6311114 Toll Free 0800 1 66342 e mail info omegashop cz 11 rue Jacques Cartier 78280 Guyancourt France TEL 33 0 1 61 37 29 00 FAX 33 0 1 30 57 54 27 Toll Free in France 0800 466 342 e mail sa
6. and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the Product s in such a manner RETURN REQUESTS INQUIRIES Direct all warranty and repair requests inquiries to the OMEGA Customer Service Department BEFORE RETURNING ANY PRODUCT S TO OMEGA PURCHASER MUST OBTAIN AN AUTHORIZED RETURN AR NUMBER FROM OMEGA S CUSTOMER SERVICE DEPARTMENT IN ORDER TO AVOID PROCESSING DELAYS The assigned AR number should then be marked on the outside of the return package and on any correspondence The purchaser is responsible for shipping charges freight insurance and proper packaging to prevent breakage in transit FOR WARRANTY RETURNS please have the FOR NON WARRANTY REPAIRS consult OMEGA following information available BEFORE for current repair charges Have the following contacting OMEGA information available BEFORE contacting OMEGA L Purchase Order number under which the product 1 Purchase Order number to cover the COST was PURCHASED of the repair 2 Model and serial number of the product under 2 Model and serial number of the product and warranty and 3 Repair instructions and or specific problems 3 Repair instructions and or specific problems relative to the product relative to the product OMEGA s policy is to make running changes not model changes whenever an improvement is possible This affords our customers the latest in technology and engineering OMEGA is a registered trademark of OME
7. data rate may vary due to line conditions and cable lengths RS 232 is a single ended or unbalanced interface meaning that a single electrical signal is compared to a common signal ground to determine binary logic states The RS 232 and the EIA TIA 574 specification define two types of interface circuits Data Terminal Equipment DTE and Data Circuit Terminating Equipment DCE The OMG USB 232 1 is a DTE device OMG USB 232 1 Page 10 Appendix D Asynchronous Communications Appendix D Asynchronous Communications Serial data communications implies that individual bits of a character are transmitted consecutively to a receiver that assembles the bits back into a character Data rate error checking handshaking and character framing start stop bits are pre defined and must correspond at both the transmitting and receiving ends Asynchronous communications is the standard means of serial data communication for PC compatibles and PS 2 computers The original PC was equipped with a communication or COM port that was designed around an 8250 Universal Asynchronous Receiver Transmitter UART This device allows asynchronous serial data to be transferred through a simple and straightforward programming interface Character boundaries for asynchronous communications are defined by a starting bit followed by a pre defined number of data bits 5 6 7 or 8 The end of the character is defined by the transmission of a pre defined numbe
8. eseeceeeaeseesees 7 POWER CONSUMPTION cccsssscssssesscseeseseceeseeseceesceaeeeeseeaeeeeseeeeeeaeeeesees MEAN TIME BETWEEN FAILURES MTBF ane PHYSICAL DIMENSIONS os cass sass ecscadisactisdvertasestasa aaar E I E APPENDIX A TROUBLESHOOTING cccscsscsssssccsssssssscscscceeeed APPENDIX B HOW TO GET ASSISTANCE cccssssssssssssscsseseeeeD APPENDIX C ELECTRICAL INTERFACE ccscsssssssssssseseeeeseee L0 APPENDIX D ASYNCHRONOUS COMMUNICATIONS 00000061 1 APPENDIX E COMPLIANCE NOTICES scccsscessssssscscceceesessee L2 FEDERAL COMMUNICATIONS COMMISSION STATEMENT 12 EMC DIRECTIVE STATEMENT c csccsssscsseseseceeseeseeeeseeeeeeeseeeeeaeneees 12 Figure 1 Asynchronous Communications Bit Diagram sseeee 11 Introduction Introduction Overview The OMG USB 232 1 equips the PC with 1 USB to RS 232 Asynchronous serial port providing a versatile interface for common RS 232 needs i e modem mouse and plotter The advantage of this product over more traditional approaches is that it doesn t require opening the computer case nor does it require resources such as I O ports or IRQ s It does require a system that supports USB both in terms of hardware and operating system What s Included The OMG USB 232 1 is shipped with the following items If any of these items is missing or damaged contact the supplier e OMG USB 232 1 USB to RS 232 Seria
9. h to proceed You should see one more New Hardware Found indicating the actual port being created If you view your systems Device Manager at this point you should have a new COM port in the Ports COM amp LPT Device Class It should look similar to the screen shot on the following page OMG USB 232 1 Page 4 Installation system Properties m Computer CDROM H Disk drives a Display adapters aS Floppy disk controllers H 5 Hard disk controllers eB Keyboard H Monitors Ay Mouse Communications Port COM1 A Printer Port LPT1 i Mf SeaLINK 232 USB to RS 232 Serial Converter COM4 amp SCSI controllers You can access your new COM port by using the assigned COM identifier shown above In this case it is COM4 but this assignment will vary from system to system At this point the hardware is recognized To verify operation use the supplied WinSSD diagnostic utility WinSSD can be found in the Start Programs group OMG USB 232 1 Page 5 Technical Description Technical Description The OMG USB 232 1 utilizes a USB UART This chip features programmable baud rate data format 128 byte Dual Port TX Buffer and 384 byte Dual Port RX Buffer The RS 232 transceiver supports data rates up to 460 8K baud Refer to Appendix C for cable length limitations Features e Hot Pluggable device that doesn t require opening the case e No system resources are required i e I O ports or IRQ s
10. her assumes responsibility for any omissions or errors nor assumes liability for any damages that result from the use of its products in accordance with information provided by OMEGA either verbal or written OMEGA warrants only that the parts manufactured by it will be as specified and free of defects OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER EXPRESS OR IMPLIED EXCEPT THAT OFTITLE AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED LIMITATION OF LIABILITY The remedies of purchaser set forth herein are exclusive and the total liability of OMEGA with respect to this order whether based on contract warranty negligence indemnification strict liability or otherwise shall not exceed the purchase price of the component upon which liability is based In no event shall OMEGA be liable for consequential incidental or special damages CONDITIONS Equipment sold by OMEGA is not intended to be used nor shall it be used 1 as a Basic Component under 10 CFR 21 NRC used in or with any nuclear installation or activity or 2 in medical applications or used on humans Should any Product s be used in or with any nuclear installation or activity medical application used on humans or misused in any way OMEGA assumes no responsibility as set forth in our basic WARRANTY DISCLAIMER language and additionally purchaser will indemnify OMEGA
11. ke sure that USB support is enabled in the System BIOS and it is functioning properly in the operating system This can be done by using either the Windows 98 ME or Windows 2000 Device Manager Ensure that the software has been installed on the machine so that the necessary files are in place to complete the installation When the OMG USB 232 1 is configured properly the USB Enabled LED EN will be lit This should allow you to use the WinSSD utility and the supplied loopback plug to check communications The supplied loopback plug connects TD to RD If you decide to test the Modem Control Signals a full pin loopback plug will be required Details on loopback plugs are included within WinSSD Contact Omega if you need further assistance When testing the OMG USB 232 1 in loopback mode you should see both the TD and RD LED s flashing as well as seeing echoed data on the screen The loopback test first transmits a HEX pattern SSAA and then an ASCII string of data If this test passes then the OMG USB 232 1 is ready for use in your application OMG USB 232 1 Page 8 Appendix B How To Get Assistance Appendix B How To Get Assistance Please refer to Appendix A Troubleshooting prior to calling Technical Support 1 Read this manual thoroughly before attempting to install the adapter in your system 2 When calling for technical assistance please have your user manual and current adapter settings If possible please have
12. l I O Adapter e USB Cable Part Number CA179 for Connecting to Upstream Host Hub e Software e User Manual OMG USB 232 1 Page 1 Installation Installation Operating System Installation Choose Install Software at the beginning of the CD and select the Serial I O software drivers and install SeaCOM System Installation The screen captures below are taken from a Windows ME installation Your particular operating system may differ slightly from what is shown based on your version of Windows The OMG USB 232 1 can be connected to any Upstream Type A port either at the PC host or an Upstream Hub The OMG USB 232 1 is hot pluggable meaning there is no need to power down your computer prior to installation The OMG USB 232 1 requires no user hardware configuration since there are no jumpers present on the card 1 Connect OMG USB 232 1 to an Upstream Host or Hub New Hardware Found Ne sales This indicates that the system has recognized the new device and will now proceed to locate a driver OMG USB 232 1 Page 2 Installation Add New Hardware Wizard Since you have already installed the software by running Setup simp ly click Next to proceed The drivers that were installed during setup will automatically be used to configure the adapter OMG USB 232 1 Page 3 Installation Add New Hardware Wizard Windows has now located a driver and installed the software Click Finis
13. les omega fr Daimlerstrasse 26 D 75392 Deckenpfronn Germany TEL 49 0 7056 9398 0 FAX 49 0 7056 9398 29 Toll Free in Germany 0800 639 7678 e mail info omega de One Omega Drive River Bend Technology Centre Northbank Irlam Manchester M44 5BD United Kingdom TEL 44 0 161 777 6611 FAX 44 0 161 777 6622 Toll Free in United Kingdom 0800 488 488 e mail sales omega co uk It is the policy of OMEGA to comply with all worldwide safety and EMC EMI regulations that apply OMEGA is constantly pursuing certification of its products to the European New Approach Directives OMEGA will add the CE mark to every appropriate device upon certification The information contained in this document is believed to be correct but OMEGA Engineering Inc accepts no liability for any errors it contains and reserves the right to alter specifications without notice WARNING These products are not designed for use in and should not be used for patient connected applications Contents OVER VIEW 6s 035 r E A RA AAO N 1 WHAT S INCLUDED ienna e ai E a 1 OPERATING SYSTEM INSTALLATION cssessessessessesseseeseeseeseeseeseeseeneess 2 SYSTEM INSTALLATION coe E A AN A R 2 FEATURES 05585 aT A A A AENA E E AE NE ON 6 CONNECTOR PIN ASSIGNMENTS DB25 MALE cscsscssessesesseeseeseess 6 ENVIRONMENTAL SPECIFICATIONS c csccsesceseeseseeseseeseeeeseeeeeeeaeeeeees 7 MANUFACTURING cccssssssscsessesscsescsesseseceesssseceeseeaeeneeesese
14. n tested and found to comply with the limits for Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference In such case the user will be required to correct the interference at his own expense EMC Directive Statement Products bearing the CE Label fulfill the requirements of the EMC directive 89 336 EEC and of the low voltage directive 73 23 EEC issued by the European Commission To obey these directives the following European standards must be met EN55022 Class B Limits and methods of measurement of radio nterference characteristics of information technology equipment jais EN55024 Information technology equipment Immunity characteristics Limits and methods of measurement EN60950 IEC950 Safety of information technology equipment including electrical business equipment Always use cabling provided with this product if possible If no cable is provided or if an alternate cable is required use high quality shielded cabling to maintain compliance with EMC directives
15. r of stop bits usually 1 1 5 or 2 An extra bit used for error detection is often appended before the stop bits Idle state of Odd Even me ft 5 to 8 Data Bits _______ey Remain le or 1 i 2 Soe l ay ane NOS a do oe Oe eee I I 1 I ler ISI 4 0 wd t 4 J 1 1 tot i i lees rim tt fom 150g la 2 al Figure 1 Asynchronous Communications Bit Diagram This special bit is called the parity bit Parity is a simple method of determining if a data bit has been lost or corrupted during transmission There are several methods for implementing a parity check to guard against data corruption Common methods are called E ven Parity or O dd Parity Sometimes parity is not used to detect errors on the data stream This is refereed to as N o parity Because each bit in asynchronous communications is sent consecutively it is easy to generalize asynchronous communications by stating that each character is wrapped framed by pre defined bits to mark the beginning and end of the serial transmission of the character The data rate and communication parameters for asynchronous communications have to be the same at both the transmitting and receiving ends The communication parameters are baud rate parity number of data bits per character and stop bits i e 9600 N 8 1 OMG USB 232 1 Page 11 Appendix E Compliance Notices Appendix E Compliance Notices Federal Communications Commission Statement FCC This equipment has bee
16. the adapter connected in a computer ready to run diagnostics 3 Omega Engineering maintains a home page on the Internet Our home page address is www omega com The latest software updates and newest manuals are available via our FTP site accessible from our home page 4 Technical support is available Monday through Friday from 8 30 a m to 6 00 p m Eastern time Technical support can be reached at 1 800 DAS IEEE RETURN AUTHORIZATION MUST BE OBTAINED FROM OMEGA BEFORE RETURNED MERCHANDISE WILL BE ACCEPTED AUTHORIZATION CAN BE OBTAINED BY CALLING OMEGA CUSTOMER SERVICE AND REQUESTING AN AUTHORIZED RETURN AR NUMBER OMG USB 232 1 Page 9 Appendix C Electrical Interface Appendix C Electrical Interface RS 232 Quite possibly the most widely used communication standard is RS 232 This implementation has been defined and revised several times and is often referred to as RS 232 or EIA TIA 232 The IBM PC computer defined the RS 232 port on a 9 pin D sub connector and subsequently the EIA TIA approved this implementation as the EIA TIA 574 standard This standard is defined as the 9 Position Non Synchronous Interface between Data Terminal Equipment and Data Circuit Terminating Equipment Employing Serial Binary Data Interchange Both implementations are in wide spread use and will be referred to as RS 232 in this document RS 232 is capable of operating at data rates up to 20 Kbps at distances less than 50 ft The absolute maximum
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