Omega OMG-USB-485-1 User Manual Download Page 1

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User’s Guide

OMG-USB-485-1

Single Port RS-422/485/530 to USB Adaptor

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Summary of Contents for OMG-USB-485-1

Page 1: ...www omega com e mail info omega com User sGuide OMG USB 485 1 Single Port RS 422 485 530 to USB Adaptor Shop online at...

Page 2: ...court 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 sales omega fr Germany Austria Daimlerstrasse 26 D 75392 Deckenpfronn Germany TEL 49 0 7056 9398 0 FA...

Page 3: ...SIGNMENTS DB25 MALE 8 SPECIFICATIONS 9 ENVIRONMENTAL SPECIFICATIONS 9 MANUFACTURING 9 POWER CONSUMPTION 9 MEAN TIME BETWEEN FAILURES MTBF 9 PHYSICAL DIMENSIONS 9 APPENDIX A TROUBLESHOOTING 10 APPENDIX...

Page 4: ...Figures Figure 1 RS 530 422 4 Wire 485 Default 7 Figure 2 RS 485 2 Wire with Echo 7 Figure 3 RS 485 2 Wire No Echo 7 Figure 4 Asynchronous Communications Bit Diagram 14...

Page 5: ...es 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 syst...

Page 6: ...tly from what is shown based on your version of windows The OMG USB 485 1 can be connected to any Upstream Type A port either at the PC host or an Upstream Hub The OMG USB 485 1 is hot pluggable meani...

Page 7: ...G USB 485 1 Page 3 Since you have already installed the software by running Setup simply click Next to proceed The drivers that were installed during setup will automatically be used to configure the...

Page 8: ...driver has been located click Finish 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 CO...

Page 9: ...ing the assigned COM identifier shown above In this case it is COM5 but this assignment will vary from system to system At this point the hardware is recognized To verify operation use the supplied Wi...

Page 10: ...examples Switch SW1 ON enables adds and connects SW1 position OFF disables removes and disconnects SW1 Function 1 RS 485 Two Wire Auto Enable Disable 2 Echo Enable Disable 3 Adds or removes the 120 o...

Page 11: ...use the following examples to configure your adapter Figure 1 RS 530 422 4 Wire 485 Default Figure 2 RS 485 2 Wire with Echo Figure 3 RS 485 2 Wire No Echo O N 1 2 3 4 5 6 7 8 OFF RS 530 422 O N RS 4...

Page 12: ...The OMG USB 485 1 complies with the EIA 530 pin out with the following signals supported Signal Name Pin Mode GND Ground 7 RDB RX Receive Positive 16 Input RDA RX Receive Negative 3 Input CTSB CTS Cle...

Page 13: ...nsing Manufacturing 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...

Page 14: ...ill 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 S...

Page 15: ...adapter connected in a computer ready to run diagnostics 3 Visit Omega s website at www omega com for the latest software updates and newest manuals 4 Technical support is available Monday through Fr...

Page 16: ...422 is a differential interface that defines voltage levels and driver receiver electrical specifications On a differential i nterface logic levels are defined by the difference in voltage between a...

Page 17: ...and 32 receivers to be connected to one line This interface is ideal for multi drop or network environments RS 485 tri state driver not dual state will allow the electrical presence of the driver to...

Page 18: ...f a pre defined number of stop bits usually 1 1 5 or 2 An extra bit used for error detection is often appended before the stop bits Remain Idle or next start bit Odd Even or Unused STOP P BIT 5 to 8 D...

Page 19: ...ul 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 directiv...

Page 20: ...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...

Page 21: ...city Indicators Turbine Paddlewheel Systems Totalizers Batch Controllers pH CONDUCTIVITY pH Electrodes Testers Accessories Benchtop Laboratory Meters Controllers Calibrators Simulators Pumps Industria...