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Pin assignment of internal ports
A26361-D1931-Z120-1-7419, Edition 1 English - 13
Pin Signal Pin Signal
1 GND 2 Speaker -
3 "Stand by" LED + 4 Key
5 Key 6 GND
7 "Power On" LED + 8 Speaker +
9 "Power On" LED + 10 Reserved
11 "Power On" LED -
"Stand by" LED -
(GND)
12 Reserved
13 "Message" LED + 14 Key
15 "Message" LED - 16 Password Skip
17 Key 18 "SCSI" LED Input (low asserted)
19 "HD" LED + 20 "SCSI" LED Input (low asserted)
21 "HD" LED - 22 Recover BIOS
23 GND 24 Key
25 Power-Button (low asserted) 26 GND
27 reserved 28 GND
29 Reset-Button (low asserted) 30 GND
Serial ATA
1
Pin Signal Pin Signal
1 GND 2 Transmit data positive
3 Transmit data negative 4 GND
5 Receive data negative 6 Receive data positive
7 GND 8 Key