Pepper Computer Modular Computers RS485 - Manual (Page 291)

SMART I/O User’s Manual
©1996 PEP Modular Computers GmbH March 12, 1996 Page 6 - 9
Chapter 6 Communications Modules
6
Connection
TxD RxD DTR CTS
GND
Interface
DTR MAX232A
RxD
GND
Vcc
TxD
CTS
Connector
User Interface System Interface