AXIOMTEK IPC970, User Manual

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IPC970 Series U
ser’s Manual
30 Introduction
1.7.18 Flexible IO
– Isolated COM x4 I/O Card (AX93516)
The system has four serial ports. COM1~COM4 are RS-232/422/485 isolated 2KV ports.
*RS-232/422/485 can be configured via BIOS settings .
※
COM1, COM2, COM3, COM4
Pins RS-232 RS-422 RS-485
1
DCD, Data Carrier
Detect
TX- Data-
2 RXD, Receive Data TX+ Data+
3 TXD, Transmit Data RX+ No use
4
DTR, Data Terminal
Ready
RX- No use
5 GND, Ground No use No use
6 DSR, Data Set Ready No use No use
7 RTS, Request To Send No use No use
8 CTS, Clear To Send No use No use
9 RI, Ring Indicator No use No use
10 GND_EARTH No use No use