MSI 915GM-FR User Manual - Page 31

Front USB Connectors: JUSB1 & JUSB2, Serial Port Connector: JCOM2

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Page 31 highlights

Hardware Setup Serial Port Connector: JCOM2 The mainboard offers one serial port JCOM2. It is 16550A high speed communication ports that senda/receivea/ 16 bytes FIFOs. You can attach a serial mouse or other serial device directly to it. 2 10 1 9 JCOM2 Pin Definition PIN SIGNAL DESCRIPTION 1 DCD 2 SIN 3 SOUT 4 DTR 5 GND 6 DSR 7 RTS 8 CTS 9 RI 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 Front USB Connectors: JUSB1 & JUSB2 The mainboard provides two standard USB 2.0 pin headers JUSB1 & JUSB2 . USB 2.0 technology 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 highspeed USB interface peripherals such as USB HDD, digital cameras, MP3 players, printers, modems and the like. 2 10 1 9 JUSB1, JUSB2 (USB 2.0) JUSB1 & JUSB2 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 USBOC Connected to JUSB1 or JUSB2 USB 2.0 Bracket 2-19

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2-19
Hardware Setup
Connected
to JUSB1
or JUSB2
USB 2.0 Bracket
Front USB Connectors: JUSB1 & JUSB2
The mainboard provides two standard USB 2.0 pin headers
JUSB1 & JUSB2
.
USB 2.0 technology 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
,
MP3 players
,
printers
,
modems and the like
.
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
USBOC
JUSB1 & JUSB2 Pin Definition
JUSB1, JUSB2
(USB 2.0)
Pin Definition
Serial Port Connector: JCOM2
The mainboard offers one serial port JCOM2. It is 16550A high speed communication
ports that senda/receivea/ 16 bytes FIFOs. You can attach a serial mouse or other
serial device directly to it.
JCOM2
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
2
1
10
9
1
2
9
10