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1394A-J1/1394A-J2: IEEE 1394A header
Use this header to connect to any IEEE 1394A interface.
Pin
Signal Name
1
Cable-power
2
GND
3
TPB-
4
TPB+
J1: Serial IRQ header
This connector is use to connect certain add-ons like a PCIMCIA card, infra-
red port, additional USB ports, power supply temperature monitoring for smart
fans, chassis intrusion and SMBus.
Pin
Signal Name
1, 3, 4
NC
2, 5
GND
6
SIRQ
J2/J4: Serial ATA connector
This connector is use to support the new Serial ATA devices for the highest
date transfer rates (1.5 Gbps burst), simpler disk drive cabling and easier PC
assembly. It eliminates limitations of the current Parallel ATA interface. But
maintains register compatibility and software compatibility with Parallel ATA.
Pin
Signal Name
5
TPA-
6
TPA+
7
Chassis GND
8
NC
Function
Not connected
Ground
Serial IRQ
24
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