Mini Pcie 2 Power Select; Com 1 (Serial) Port - DFI CS631-C246/Q370 User Manual

X Internal I/O Connectors
COM (Serial) Port
„ COM Port Pin Headers
9 1
2
„ COM 2/3/4/5/6 from left to right
The serial ports are asynchronous communication ports with 16C550A-compatible UARTs that
can be used with modems, serial printers, remote display terminals, and other serial devices.
COM 2 supports three serial modes, i.e. RS232, RS422, and RS485 as well as RS232 with/with-
out power. COM 3/4/5/6 only support RS232.
Jumper Setting
Serial mode and RS232 with/without power of COM 2 are configured via jumper settings as
previously instructed in this chapter.
BIOS Setting
Configure the onboard COM ports in the Advanced menu ("Console Redirection" and "SIO NU-
VOTON6116D" submenus) of the BIOS. Refer to chapter 3 for more information.
User's Manual | CS631
HARDWARE INSTALLATION
„ COM Port Pin Assignment
Standard RS232 with
Pin
RS232 Power (COM 2)
1 DCD- +12V
2 RD RD
3 TD TD
4 DTR- DTR-
5 GND GND
6 DSR- DSR-
7 RTS- RTS-
8 CTS- CTS-
9 RI- +5V
Chapter 2
RS422 RS485
(COM 2) (COM 2)
TXD- Data-
TXD+ Data+
RXD+ N.C.
RXD- N.C.
GND GND
N.C. N.C.
N.C. N.C.
N.C. N.C.
N.C. N.C.
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