Chapter 2 – DFI Q7X-151 User Manual
Page 16
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Chapter 2 Hardware Installation
16
Chapter 2
DisplayPort
DisplayPort is a digital display interface used to connect a display device such as a computer
monitor. It is used to transmit audio and video simultaneously. The interface, which is devel-
oped by VESA, delivers higher performance features than any other digital interface.
Serial (COM) Ports
COM 3
COM 4
COM 3 and COM 4 are fixed at RS232.
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.
Connecting External Serial Ports
Your COM port may come mounted on a card-edge bracket. Install the card-edge bracket to
an available slot at the rear of the system chassis then insert the serial port cable to the COM
connector. Make sure the colored stripe on the ribbon cable is aligned with pin 1 of the COM
connector.
COM 3/COM 4:
RS232
DisplayPort
DCD-
TD
RD
DT
R-
GND
1 2 3 4 5
RT
S-
RI
-
DSR
-
CTS-
6 7 8 9