User Manual

Embedded Controller AEC-6612 Rev. B
Chapter 2 Hardware Installation 2 - 8
2.5 RS-232/422/485 Serial Port Connector (COM2)
Pin Signal Pin Signal
1 DCD (422TXD-/485DATA-) 2 RXD (422RXD+)
3 TXD (422TXD+/485DATA+) 4 DTR (422RXD-)
5 GND 6 DSR
7 RTS 8 CTS
9 RI
COM2 RI/+5V/+12V Selection (JP3)
Pin Signal
1-2 +12V
3-4 RI
5-6 +5V (Default)
9
8
6
7
4
5
3
2
1