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ii Table of Contents RS-422/485 Application Note

 Copyright B&B Electronics -- Revised October 1997

B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350

PH (815) 433-5100 -- FAX (815) 434-7094

CHAPTER 5: SOFTWARE...........................................................................33

INTRODUCTION ...............................................................................................33

RS-422 SYSTEMS............................................................................................ 33

RS-485 DRIVER CONTROL..............................................................................33

RS-485 RECEIVER CONTROL .......................................................................... 34

MASTER-SLAVE SYSTEMS...............................................................................34

Four Wire Master-Slave Systems ...............................................................34

Two Wire Master-Slave Systems ................................................................ 34

MULTI-MASTER RS-485 SYSTEMS ................................................................. 35

SYSTEMS WITH PORT POWERED CONVERTERS................................................35

CHAPTER 6: SELECTING RS-485 DEVICES...........................................36

CHAPTER 7: SOURCES OF FURTHER INFORMATION......................37

APPENDIX A: EIA SPECIFICATION SUMMARY..................................38

APPENDIX B: EIA STANDARD RS-423 DATA TRANSMISSION.........40

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