34
English
SMB Connector
(5-pin SMB_1)
(5-pin SMB_2)
(5-pin SMB_3)
(see p.29, No. 4)
1
+3V_SEL
SCL
SDA
GND
GND
he SMB (SubMiniature
version B) connector provides
a communication interface
between the backplane and the
motherboard.
Debug Header
(5-pin J1)
(see p.29, No. 3)
3.3V
1
GND
XERS#
TCK/CLK
RMS/DATA
his header is for debug
purposes.
USB 2.0 Header
(9-pin USB_HEADER)
(see p.30, No. 1)
DUMMY
GND
GND
+B
-B
USB_PWR
+A
-A
USB_PWR
1
he header supports two USB 2.0
ports on the front panel.
Front and Auxiliary Panel
Header
(17-pin FRONT + AUX
PANEL)
(see p.30, No. 2)
PWR BTN
P
L
E
D
-
P
L
E
D
+
H
D
L
E
D
-
1
NMI BTN
+
3
V
S
B
L
A
N
1
L
E
D
-
G
N
D
L
A
N
2
L
E
D
-
H
D
L
E
D
+
L
O
C
A
T
O
R
L
E
D
2
-
RST BTN
L
O
C
A
T
O
R
L
E
D
1
-
L
O
C
A
T
O
R
B
T
N
#
G
N
D
L
O
C
A
T
O
R
L
E
D
2
+
G
N
D
his header supports multiple
functions on the front panel.
ATX Power Connector
(24-pin ATXPWR1)
(see p.31, No. 4 )
24
13
1
12
he PDB provides a 24-pin ATX
power connector. To use a 20-pin
ATX power supply, please plug it
along Pin 1 and Pin 13.
ATX 12V Power
Connector
(8-pin ATX12V1)
(see p.31, No. 3)
5
8
1
4
he PDB provides a 8-pin ATX
12V power connector.
