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J139: Front Panel Header
NMI
GND
_
Warning LED -
Warning LED +
GND
PWR SW
PWR LED-
PWR LED+
J25: USB Front Panel Header
2
1
9
10
J146: COM2 Header
10
9
1
2
SMBUS Clock
18
17
SMBUS Data
16
15
14
13
Reserved
12
11
10
9
Reset
8
7
6
5
HDD LED-
4
3
HDD LED+
2
1
Use this header to connect to front panel USB
connector.
Signal
USBPWR
USB3-
USB3+
GND
Use these pin definitions to connect a port to COM2.
Signal
Data Carrier Detect
Receive-data
Transfer-data
Data-terminal-ready
GND
http://www.TYAN.com
The motherboard
provides one front panel
header for electrical
connection to the front
panel switches and
5VSB
LED's.
5V
GND
Pin
Pin
1
2
3
4
5
6
7
8
KEY
9
10
Pin
Pin
1
2
3
4
5
6
7
8
9
10
15
Signal
USBPWR
USB2-
USB2+
GND
GND
Signal
Data-set-ready
Request-to-send
Clear-to-send
Ring-indicator
NC/Key
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