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Com header : com1, Lpt hearder (optional) : lpt, Cir header : cir – Foxconn B75M User Manual

Page 24: Chassis intruder alarm header : intr, Hardware installation 17

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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