Foxconn B75MX Series User Manual page 24

COM Header : COM2
This motherboard supports one serial RS232
COM port for legacy compatibility. User must
purchase another RS232 cable with a 9-pin
D-sub connector at one end to connect with the
external RS232 device and another end with
10-pin female connector to connect with COM1
connector in the motherboard.
Chassis Intrusion Alarm Header : INTR
The connector can be connected to a security
switch on the chassis. The system can detect
the chassis intrusion through the function of this
connector. If eventually the chassis is closed,
the system will send a message out.
USB 2.0 Headers: f_USB1/2
These connectors comply with USB 2.0 speci-
fication, you can get USB ports by connecting
the USB module cable to any of these connec-
tors.
EMPTY
USB 3.0 Header
This connectors are used to connect with the
USB3.0 specification, and is for the additional
USB3.0 ports.
fan Headers: CPU_fAN, SYS_fAN
The fan speed can be controlled and monitored
in the BIOS Setup. These fans can be auto-
matically turned off after the system enters S3,
S4 and S5 sleeping states.
1 2
VCC VCC
D- D-
D+ D+
GND GND
GND
9 10
F_USB1/2
HARDWARE INSTALLATION
DCD
SOUT
GND
1
INTRUDERJ
GND
INTR
19 20
NC
USB2.0 D+
USB2.0 D-
GND
USB3.0 SS TX+
USB3.0 SS TX-
GND
USB3.0 SS RX+
USB3.0 SS RX-
VCC
1 2
USB 3.0
GND
1
POWER
SENSE
CONTROL
CPU_FAN/SYS_FAN
1 2
SIN
DTR
DSR
RTS CTS
RI EMPTY
9 10
COM2
USB2.0 D+
USB2.0 D-
GND
USB3.0 SS TX+
USB3.0 SS TX-
GND
USB3.0 SS RX+
USB3.0 SS RX-
VCC
EMPTY
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