15
Chapter 2
2.9 Keyboard and PS/2 mouse connector (CN14)
The board provides a keyboard connector that supports both a keyboard
and a PS/2 style mouse. In most cases, especially in embedded applica-
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 (LED1, CN3)
2.10.1 Power & HDD LED Connector(LED1)
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 (CN3)
Momentarily pressing the reset button will activate a reset. The switch
should be rated for 10 mA, 5 V.
2.11 Power connectors (CN2)
2.11.1 Main power connector, +5 V, +12 V (CN2)
Supplies main power to the PCM-9375 (+5 V), and to devices that require
+12 V.
2.11.2 ATX Feature connector (CN1, CN8)
The PCM-9375 can support ATX power supply by CN1 connector as well
as J1 jumper setting. Also, an advanced power bottom (CN8) is supported
if any ATX power supply is used, optional cable (P/N: 1703200201) can
be used for ATX feature conjecturer.
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.
Data Modul AG - www.data-modul.com
Содержание PCM-9375
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