MSI K9N2 SLI PLATINUM User Guide - Page 30

Front USB Connector: JUSB1/ JUSB2/ JUSB3, Serial Port Connector: JCOM1

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Page 30 highlights

MS-7374 Mainboard Front USB Connector: JUSB1/ JUSB2/ JUSB3 This connector, compliant with Intel® I/O Connectivity Design Guide, is ideal for connecting high-speed USB interface peripherals such as USB HDD, digital cameras, MP3 players, printers, modems and the like. 10 9 21 JUSB1 / 2/ 3 Pin Definition PIN SIGNAL 1 VCC 3 USB0- 5 USB0+ 7 GND 9 Key (no pin) PIN SIGNAL 2 VCC 4 USB1- 6 USB1+ 8 GND 10 NC Important USB 2.0 Bracket (optional) Note that the pins of VCC and GND must be connected correctly to avoid possible damage. Serial Port Connector: JCOM1 This connector is a 16550A high speed communication port that sends/receives 16 bytes FIFOs. You can attach a serial device. Pin Definition 9 2 1 JCOM1 PIN SIGNAL 1 DCD 2 SIN 3 SOUT 4 DTR 5 GND 6 DSR 7 RTS 8 CTS 9 RI DESCRIPTION Data Carry Detect Serial In or Receive Data Serial Out or Transmit Data Data Terminal Ready Ground Data Set Ready Request To Send Clear To Send Ring Indicate 2-16

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2-16
MS-7374 Mainboard
PIN
SIGNAL
PIN
SIGNAL
1
VCC
2
VCC
3
USB0-
4
USB1-
5
USB0+
6
USB1+
7
GND
8
GND
9
Key (no pin)
10
NC
Pin Definition
Important
Note that the pins of VCC and GND must be connected correctly to avoid
possible damage.
Front USB Connector: JUSB1/ JUSB2/ JUSB3
This connector, compliant with Intel
®
I/O Connectivity Design Guide, is ideal for con-
necting high-speed USB interface peripherals such as
USB HDD
,
digital cameras
,
MP3 players
,
printers
,
modems and the like
.
JUSB1 / 2/ 3
USB 2.0 Bracket
(optional)
Serial Port Connector: JCOM1
This connector is a 16550A high speed communication port that sends/receives 16
bytes FIFOs. You can attach a serial device.
PIN
SIGNAL
DESCRIPTION
1
DCD
Data Carry Detect
2
SIN
Serial In or Receive Data
3
SOUT
Serial Out or Transmit Data
4
DTR
Data Terminal Ready
5
GND
Ground
6
DSR
Data Set Ready
7
RTS
Request To Send
8
CTS
Clear To Send
9
RI
Ring Indicate
Pin Definition
JCOM1
2
9
1
1
2
9
10