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Rear I/O Ports
X
COM 1 (Serial) Port
„ COM 1
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 supports three serial modes, i.e. RS232, RS422, and RS485, as well as RS232 with/with-
out power.
Jumper Setting
Serial mode and RS232 with/without power of COM 1 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 | CS632
HARDWARE INSTALLATION
„ COM 1 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
RXD+
Data+
RXD-
Data-
TXD+
N.C.
TXD-
N.C.
GND
GND
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
22
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