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M S-7158 ATX M ainboard
IEEE 1394 Connectors: J1394_2, J1394_3 (Optional)
The mainboard provides two 1394 pin headers that allow you to connect IEEE
1394 ports via an external IEEE1394 bracket.
9
10
J1394_2~J1394_3
Foolproof Design
IrDA Infrared Module Header: JIR1
The connector allows you to connect to IrDA Infrared module. You must config-
ure the setting through the BIOS setup to use the IR function. JIR1 is compliant with
®
Intel
Front Panel I/O Connectivity Design Guide.
1
5
2-20
PIN
1
1
2
3
5
7
9
IEEE1394 Bracket (Optional)
Pin
2
1
JIR1
3
6
5
Pin Definition
SIGNAL
PIN
TPA+
2
Ground
4
TPB+
6
Cable power
8
Key (no pin)
10
Pin Definition
Signal
Pin
NC
2
VCC5
4
IRTX
6
SIGNAL
TPA-
Ground
TPB-
Cable power
Ground
Signal
NC
GND
IRRX
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