Flexible Io - Com I/O Card Connector (Ax93511) - AXIOMTEK IPC972 User Manual

1.7.16 Flexible IO - COM I/O Card Connector (AX93511)

The system has four serial ports. COM1~COM4 are RS-232/422/485 ports.
*RS-232/422/485 can be configured via BIOS settings.
※COM1, COM2, COM3, COM4
Pins RS-232
1 DCD, Data Carrier Detect
2 RXD, Receive Data
3 TXD, Transmit Data
4 DTR, Data Terminal Ready
5 GND, Ground
6 DSR, Data Set Ready
7 RTS, Request To Send
8 CTS, Clear To Send
9 RI, Ring Indicator
Introduction
RS-422 RS-485
TX- Data-
TX+ Data+
RX+ No use
RX- No use
No use No use
No use No use
No use No use
No use No use
No use No use
IPC972 Series User's Manual
25