Com 1 (Serial) Port - DFI CS350-C246 User Manual

Rear I/O Ports
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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.
User's Manual | CS350
HARDWARE INSTALLATION
„ COM 1 Pin Assignment
Standard RS232
Pin
RS232 with Power
1 DCD- +12V
2 SIN SIN
3 SO SO
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
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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