GE EST iO64

Chapter 2: Installation and wiring
EST iO64 and iO500 Technical Reference Manual 73
DB-9 pin connections
DB-9 male
(front view)
SA-232 card to computer DB-9 connections
SA-232 card DB-9 Description
GND COM (pin 5) Black wire (ground connection)
RTS - Not used
TXD RXD (pin 2) White wire (communication)
RXD TXD (pin 3) Red wire (communication)