Isolated Com & Dio I/O - AXIOMTEK MVS900-511-FL Series User Manual

MVS900-511/512-FL
1.7.15 Isolated COM & DIO I/O
The system has two serial ports & DIO, including COM1~COM2* with isolated 1.5KVDC
protection and DIO1~DIO2 8-in/8-out isolated 1.5KVDC DIO ports.
*RS-232/422/485 can be configured via BIOS settings
(Refer to website about SDK, driver and test tool.)
※COM1,COM2,DIO1,DIO2
CN1 (COM1)& CN2(COM2)
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
10 GND_EARTH
Note: The RS-485 only support below communicate data format:
8 data bits + 1 stop bit
8 data bits + 1 parity bit + 1 stop bit
8 data bits + 1 parity bit + 2 stop bits
8 data bits + 2 stop bits
7 data bits + 1 parity bit (even or odd) + 2 stop bits
18
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
No use No use
Introduction