User manual

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Table of Contents
Chapter 1: Introduction .............................................. 1-1
Multipoint Opto-isolated Communications .................................... 1-1
COM Port Compatibility .................................................. 1-1
Line Bias and Termination ............................................... 1-1
Auto and Manual Transceiver Control ....................................... 1-2
Led Monitors .......................................................... 1-2
Communication Modes .................................................. 1-2
CE Marking ........................................................... 1-2
Specifications ......................................................... 1-3
Chapter 2: Installation .............................................. 2-1
CD Installation ......................................................... 2-1
3.5-Inch Diskette Installation .............................................. 2-1
Directories Created on the Hard Disk ....................................... 2-2
Installing the Card ...................................................... 2-4
Chapter 3: Option Selection .......................................... 3-1
Communication Modes and Cabling Options ................................. 3-2
Interrupts ............................................................. 3-2
Chapter 4: Address Selection ......................................... 4-1
Chapter 5: Programming ............................................. 5-1
Sample Programs ...................................................... 5-1
Windows Programming .................................................. 5-1
Initialization ........................................................... 5-1
Reception ............................................................ 5-3
Transmission .......................................................... 5-4
Chapter 6: Connector Pin Assignments ................................ 6-1
Appendix A: Application Considerations .............................. A-1
Introduction ........................................................... A-1
Balanced Differential Signals ............................................. A-1
RS485 Data Transmission ............................................... A-3