Black Box IC187C - Manual (Page 7)

6
2-PORT RS-232/422/485 PCI HOST ADAPTER
CONTENTS (continued)
Appendix C: Electrical Interfaces...............................................................28
C.1 RS-232.................................................................................................28
C.2 RS-422.................................................................................................28
C.3 RS-485.................................................................................................29
Appendix D: Asynchronous Communications ..........................................30
Appendix E: Board Layout..........................................................................32