MSI K9NGM3 Series Manual page 30

M S-7349 M ainboard
Front USB Connector: JUSB1 / JUSB2 / JUSB3
This connector, compliant with Intel
necting high-speed USB interface peripherals such as USB HDD, digital cameras,
M P3 players, printers, modems and the like.
9
10
JUSB1/2/3
Important
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.
2
JCOM1
2-16
®
I/O Connectivity Design Guide, is ideal for con-
PIN
1
1
2
3
5
7
9
9
1
Pin Definition
SIGNAL PIN
VCC 2
USB0- 4
USB0+ 6
GND 8
Key (no pin) 10
USB 2.0 Bracket
(Optional)
Pin Definition
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 T o Send
8 CTS Clear To Send
9 RI Ring Indicate
SIGNAL
VCC
USB1-
USB1+
GND
USBOC