User Manual

1-4
Chapter 1: Product Introduction
13. COM Port header
This header is for a serial (COM) port. Connect the serial port module
cable to this header, then install the module to a slot opening at the back
of the system chassis.
14. DMIC connector
The DMIC connector is for connecting the digital microphone module used in All-in-One
chassis.
15. Front panel audio header
This header is for a chassis-mounted front panel audio I/O module that
supports HD audio standard. Connect one end of the front panel audio I/O
module cable to this header.
• We recommend that you connect a high-denition front panel
audio module to this header to avail of the motherboard’s high-
denition audio capability.
• If you want to connect a high-denition front panel audio module
to this header, set the Front Panel Type item in the BIOS Setup
to [HD Audio]. By default, this header is set to [HD Audio].
16. FPD Brightness header
This connector is for the LCD panel backlight and brightness controls. It enables the LCD
panel backlight, provides backlight control signals, and provides brightness control signals for
the brightness button on the front panel.
17. LPC Debug header
This header allows connection to a LPC Debug card.
• Scan the QR code to view the meaning of each debugging
code.
• Debugging codes are only available for ASUS LPC Debug
cards.
• Contact your region sales representative for LPC Debug
cards ordering.
18. LVDS connector
This connector is for an LCD monitor that supports Low-voltage Differential Signaling (LVDS)
interface.
19. M.2 slot (Key E)
This socket allows you to install an E key and type 2230 for WIFI/BT devices supporting PCIe
mode.
20. Panel Off header
This 2-pin header is for connecting a monitor switch that can turn off the LCD panel display
backlight.
AAFP
AGND NC SENSE1_RETUR SENSE2_RETUR
PORT1 L
PORT1 R PORT2 R
SENSE_SEND
PORT2 L
HD-audio-compliant
pin definition
COM
PIN 1
RI
RTS
GND
TXD
DCD
CTS
DSR
DTR
RXD
PIN 1
GND
CK_24M_LPC
+3V
+3V
S_LFRAME#
S_LAD3
S_LAD2
S_LAD1
S_LAD0
LPC_DEBUG