Advantech PCM-9377, User Manual

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PCM-9377 User Manual 18
tions, a keyboard is not used. If the keyboard is not present, the standard
PC/AT BIOS will report an error or fail during power-on self-test (POST)
after a reset. The PCM-board’s BIOS standard setup menu allows you to
select “All, But Keyboard” under the “Halt On” selection. This allows
no-keyboard operation in embedded system applications, without the sys-
tem halting under POST.
2.10 Power & HDD LED Connector
2.10.1 Power & HDD LED Connector(CN12)
The HDD LED indicator for hard disk access is an active low signal (24
mA sink rate). Power supply activity LED indicator.
2.10.2 Power Reset button (CN4)
Momentarily pressing the reset button will activate a reset. The switch
should be rated for 10 mA, 5 V.
2.11 Power connectors
2.11.1 Peripheral power connector, -5 V, -12 V (CN8)
Supplies secondary power to devices that require -5 volts and -12 volts
2.11.2 Main power connector, +5 V, +12 V (CN2)
Supplies main power to the board (+5 V), and to devices that r12
V.
2.11.3 ATX Feature connector (CN1)
The PCM-9377 can support ATX power supply by CN1 connector.
Note.: Be sure that the ATX power supply can take at least a 10 mA load
on the 5 V standby lead (5VSB). If not, you may have difficulty powering
up your system.
2.11.4 CPU Fan power supply connector (CN5)
Pr5 V power supply to CPU cooling fan.
2.12 Audio interfaces (CN26)
2.12.1 Audio connector
The board provides all major audio signals on a 10-pin cable connector,
These audio signals include CD in, Speaker out, Microphone in, Line in
and Line out.