Com header : com1, Lpt hearder (optional) : lpt, Cir header : cir – Foxconn B75M User Manual
Page 24: Chassis intruder alarm header : intr, Hardware installation 17
COM Header : COM1
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.
LPT Hearder (optional) : LPT
The connector supports parallel port which can be
connected to a printer or a scanner. System usually
assign IRQ7 as it’s default interrupt request and
the parallel port has three operation mode: [SPP],
[EPP], [ECP].
CIR Header : CIR
This connector supports infrared wireless transmit-
ting and receiving device.
Chassis Intruder 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.
Serial ATA Connectors : SATA_1/2/3/4/5/6
The Serial ATA connector is used to connect with
SATA Hard Disk or CD devices which support this
feature. The SATA_3/4/5/6 allows up to 3GB/s
data transfer rate, the SATA_1/2 support SATA 3.0
specification, and allows up to 6GB/s data transfer
rate.
DCD
SOUT
RI
GND
RTS
DSR
DTR
CTS
EMPTY
SIN
1 2
10
9
COM1
INTR
GND
INTRUDERJ
1
GND
TX+
TX-
GND
RX-
RX+
GND
1
SATA_3/4/5/6
GND
TX+
TX-
GND
RX-
RX+
GND
1
SATA_1/2
Strobe
Auto Feed
1 2
25 26
Error
SLCT IN
INIT
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Empty
Data it [0]
Data it [1]
Data it [2]
Data it [3]
Data it [4]
Data it [6]
Data it [5]
Data it [7]
ACK
Busy
Paper End
Select
LPT
CIR
1
5VSB_SYS
EMPTY
CIRTX
CIRRX
GND
HARDWARE INSTALLATION
17