16
PLED (System Power LED):
Connect to the power status indicator on the chassis front panel. The LED
is on when the system is operating. The LED keeps blinking when the sys-
tem is in S1 sleep state. The LED is off when the system is in S3/S4 sleep
state or powered off (S5).
HDLED (Hard Drive Activity LED):
Connect to the hard drive activity LED on the chassis front panel. The LED
is on when the hard drive is reading or writing data.
The front panel design may differ by chassis. A front panel module mainly
consists of power switch, reset switch, power LED, hard drive activity LED,
speaker and etc. When connecting your chassis front panel module to this
header, make sure the wire assignments and the pin assign-ments are
matched correctly.
SATA Power Output Connector
(4-pin SATA_PWR1)
(see p.8 No. 6)
COM Port Header (RS232)
(9-pin COM2)
(see p.9 No. 13)
Front Panel Audio Header
This is an interface for front
(9-pin HD_AUDIO1)
panel audio cable that allows
(see p.9 No. 14)
convenient connection and
control of audio devices.
+5V
+12V
1
GND
GND
GND
+5V
+5V
GND
COM Port Header (RS232/422/485)
(9-pin COM1)
(see p.9 No. 12)
RS232
RS422
RS485
PIN-1 DCD#_1
TX-
DATA-
PIN-2 RXD_1
TX+
DATA+
PIN-3
TXD_1
RX+
X
PIN-4 DTR#_1
RX-
X
J_
SE
N
S
E
O
U
T2
_L
1
M
IC
_R
ET
PR
ES
EN
C
E#
G
N
D
O
U
T2
_R
M
IC
2
_R
M
IC
2
_L
O
U
T_
R
ET
1
MIC1_R
MIC1_JD
FRONT_L
FRONT_JD
FRONT_R
MIC1_L
AGND_A
LIN1_L
LIN1_JD
LIN1_R
