2-16
MS-7135 ATX Mainboard
Front Panel Connectors: JFP1, JFP2
The mainboard provides two front panel connectors for electrical connection
to the front panel switches and LEDs. The JFP1 is compliant with Intel
®
Front Panel I/
O Connectivity Design Guide.
PIN
SIGNAL
DESCRIPTION
1
HD_LED_P
Hard disk LED pull-up
2
FP PWR/SLP
MSG LED pull-up
3
HD_LED_N
Hard disk active LED
4
FP PWR/SLP
MSG LED pull-up
5
RST_SW_N
Reset Switch low reference pull-down to GND
6
PWR_SW_P
Power Switch high reference pull-up
7
RST_SW_P
Reset Switch high reference pull-up
8
PWR_SW_N
Power Switch low reference pull-down to GND
9
RSVD_DNU
Reserved. Do not use.
JFP1 Pin Definition
Serial Port Header: JCOM1
The mainboard offers one 9-pin header as serial port. The port is a 16550A
high speed communication port that sends/receives 16 bytes FIFOs. You can attach
a serial mouse or other serial device directly to it.
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 To Send
8
CTS
Clear To Send
9
RI
Ring Indicate
JCOM1
1
9
2
PIN
SIGNAL
PIN
SIGNAL
1
GND
2
SPK-
3
SLED
4
BUZ+
5
PLED
6
BUZ-
7
NC
8
SPK+
JFP2 Pin Definition
2
1
10
9
JFP1
HDD
LED
Reset
Switch
Power
LED
Power
Switch
Power LED
Speaker
1
2
7
8
JFP2