MSI MS-9238 User Manual page 30

M S-9238 Server
Serial Port Connector: COM 2
The mainboard provides one 9-pin header as serial port. The port is a 16550A high
speed communications port that sends/receives 16 bytes FIFOs. You can attach a
serial mouse or other serial devices directly to it.
9
10
COM2
Front USB Connector: JUSB1, JUSB2
The mainboard provides two USB 2.0 pinheaders (optional USB 2.0 bracket available)
that are compliant with Intel
increases data transfer rate up to a maximum throughput of 480Mbps, which is 40
times faster than USB 1.1, and is ideal for connecting high-speed USB interface
peripherals such as USB HDD, digital cameras, M P3 players, printers, mo-
dems and the like.
Important
Note that the pins of VCC and GND must be connected correctly to avoid
possible damage.
2-12
PIN
1
1
2
2
3
4
5
6
7
8
9
®
I/O Connectivity Design Guide. USB 2.0 technology
1
9
2
10
JUSB1
Pin Definition
PIN SIGNAL
1 VCC
3 USB0-
5 USB0+
7 GND
9 Key (no pin)
Pin Definition
SIGNAL DESCRIPTION
DCD Data Carry Detect
SIN Serial In or Receive Data
SOUT Serial Out or Transmit Data
DTR Data Terminal Ready
GND Ground
DSR Data Set Ready
RTS Request T o Send
CTS Clear To Send
RI Ring Indicate
2 10
1
9
JUSB2
PIN SIGNAL
2 VCC
4 USB1-
6 USB1+
8 GND
10 NC