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Universal Serial Bus (USB)
There are fi ve USB 2.0 (Universal
Serial Bus) ports/headers on the
motherboard. Two of them are Back
Panel USB ports (JUSB1: USB#0/1),
and the other three are Front Panel
USB headers (JUSB2: USB#2/3,
JUSB3: USB#4). See the tables on
the right for pin defi nitions.
Chassis Intrusion
A Chassis Intrusion header (JL1) is
located next to the 9-pin Power Con-
nector on the motherboard. Attach the
appropriate cable from the chassis to
inform you of a chassis intrusion when
the chassis is opened.
A
LAN1
LAN2
SIM1U IPMI
PCI-X 100MHz ZCR
PCI-X 133MHz
Chan. A SCSI
Pin#
1
2
3
4
5
SBX-E2 X4
C
B
SBX-E1 X8
BIOS
2-15
Chapter 2: Installation
Back Panel USB
Front Panel USB
(USB0/1)
Defi nitions
Pin#
+5V
1
PO-
2
PO+
3
Ground
4
N/A
5
Front Panel USB
Pin Defi nitions (USB4)
USB4
Pin #
Defi nition
1
+5V
2
PO-
3
PO+
4
Ground
5
Key
Chassis Intrusion
Pin Defi nitions (JL1)
Pin#
Defi nition
1
Intrusion Input
2
Ground
A. Backpanel USB 0-1
FP CTRL
B. Front Panel USB 2-3
C. Front Panel USB 4
D. Chassis Intrusion
CPU1
CPU2
D
(USB2/3)
Defi nition
Vcc
Data-
Data+
Ground
NA
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