Foxconn H77M Series User Manual page 24

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].
Strobe
Data it [0]
Data it [1]
Data it [2]
Data it [3]
Data it [4]
Data it [5]
Data it [6]
Data it [7]
ACK
Busy
Paper End
Select
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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.
1 2
Auto Feed
Error
INIT
SLCT IN
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Empty
LPT
RLSD
SOUT
GND
RTS
RI
INTRUDERJ
SATA_1/2
17
17
1 2
SIN
DTR
DSR
CTS
EMPTY
9 10
COM1/2
1
GND
INTR
1 1
GND
TX+
TX-
GND
RX-
RX+
GND
SATA_3/4/5/6
GND
TX+
TX-
GND
RX-
RX+
GND