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Com connector : com1/2, Lpt connector (optional) : lpt, Chassis intruder alarm connector : intr – Foxconn H77M Series User Manual

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and S5 sleeping states.

CoM Connector : CoM1/2

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 con-
nect with COM1 connector in the motherboard.

lPT Connector (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].

Chassis Intruder Alarm Connector : 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 300MB/s
data transfer rate, the SATA_1/2 support SATA 3.0
specification, and allows up to 600MB/s data transfer
rate.

RLSD

SOUT

RI

GND

RTS

DSR

DTR

CTS

EMPTY

SIN

1 2

10

9

COM1/2

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

INTR

GND

INTRUDERJ

1

GND

TX+

TX-
GND

RX-

RX+

GND

1

GND

TX+

TX-
GND

RX-

RX+

GND

1

SATA_3/4/5/6

SATA_1/2