User Guide

15
2-6-2 Headers
(1) Serial Port2 COM2 Header (9-pin) : COM2
COM 2
Pin 1
N
ote: Orient the read marking on the
COM2 ribbon cable to pin 1
Serial Port2 COM2 Header
(2) Line-Out/MIC Header for Front Panel (9-pin): AUDIO
This header connect to Front Panel Line-out, MIC connector with cable.
Without install the cable, this header default setting is 5-6 short, 9-10 short. When you
install the cable you have take off these jumpers.
Line-Out, MIC Headers
A
UDI O
Pin 1
AUD
_
MIC
AUD
_
FPOUT
_
L
AUD
_
MIC
_
BI AS
AUD
_
FPOUT
_
R
HP
_
ON
AUD
_
GN D
AUD
_
RET
_
L
AUD
_
RET
_
R
AUD
_
V CC
2
910
(3) USB Port Headers (9-pin) :
USB1, USB2 (only for P4MDMP/P4MDUT/P4MDPT)
These headers are used for connecting the additional USB port plug. By attaching an
option USB cable, your can be provided with two additional USB plugs affixed to the
back panel.
USB Port Headers
Pin 1
USB1
VCC
-
DATA
GN D
+ DATA
VCC
OC
-
DATA
GND
+ DATA
Pi n 1
USB2
VCC
-
DATA
GN D
+ DATA
VCC
OC
-
DATA
GND
+ DATA
(only for P4MDMP
P4 MDUT/ P4 MDPT)
(4) IDE Activity LED: HD LED
This connector connects to the hard disk activity indicator light on the case.
(5) Reset switch lead: RESET
This 2-pin connector connects to the case-mounted reset switch for rebooting your
computer without having to turn off your power switch. This is a preferred method of
rebooting in order to prolong the lift of the system’s power supply. See the figure
below.