AXIOMTEK IPC972, User Manual

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IPC972 Series U
ser’s Manual
26 Introduction
1.7.17 Flexible IO
– Isolated COM & DIO I/O Card (AX93512)
The system has two serial ports: COM1~COM2 are RS-232/422/485 with isolated 1.5KVDC
protection. DIO1~DIO2 are 8-in/8-out isolated 1.5KVDC DIO ports.
*RS-232/422/485 can be configured via BIOS settings.
※
COM1, COM2, DIO1, DIO2
CN1 (COM1) & CN2 (COM2)
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