Com (Serial) Ports - DFI AL102 User Manual

Rear I/O Ports
X

COM (Serial) Ports

„ COM 1 „ COM 2
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 1 and COM 2 (Rear Ports) support RS232 (with or without power), RS422 (optional), and
RS485 (optional). Serial modes of COM 1 and COM 2 are configured via BIOS settings as in-
structed in the next chapter. RS232 with/without power of COM 1 and COM 2 are configured
via jumper settings as previously instructed in this chapter.
Jumper Setting
RS232 with/without power of COM 1 and COM 2 are configured via jumper settings of JP5
(COM 1) and JP2 (COM 2) 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 | AL102
HARDWARE INSTALLATION
„ COM 1/2 Pin Assignment
Standard RS232
Pin
RS232 with Power
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
Note:
Please refer to the Internal I/O section later in this chapter for more information on
the internal COM ports.
Chapter 2
RS422 RS485
(optional) (optional)
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.
18