AXIOMTEK IPC974-519-FL User Manual page 34

IPC974 Series User's Manual
The system has two serial ports. COM1~COM2 are RS-232/422/485 ports.
*RS-232/422/485 can be configured via BIOS settings
※COM1,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
The system has two RJ-45 connectors: LAN1 Ethernet connection can be established by
plugging one end of the Ethernet cable into this RJ-45 connector and the other end (phone
jack) to a 1000/100/10-Base-T hub.
26
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