Serial Port Connector (Cn4,Cn5) - AXIOMTEK eBOX671B Series User Manual

3.3.5

Serial Port Connector (CN4,CN5)

The system has two serial ports. COM1~COM2 are RS-232/422/485 ports. COM3~COM4 are
RS-232 Please refer to Chapter 4 for the detail of BIOS setting.
*Baud rate support up to 115200*
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
Jumper & Connector Settings
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
eBOX671B Series user's Manual
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