SYS-ITX-N-3900/Configuration
v1.0
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Page 18
8.3.13 SATA Power Header (J22)
Power is supplied to the SATA device via the connector at J22.
Layout and Pin Reference
8.3.14 MicroSD Card Socket (J23)
The SYS-ITX-N-3900 provides a MicroSD card socket for storage only. The
MicroSD cannot be used as a bootable device for Windows.
8.4
Jumpers and Switches
8.4.1 CMOS Clear (JP3)
Clear CMOS using this jumper (JP3).See “Reset CMOS BIOS Configuration”
on page 48 for usage of this jumper.
8.4.2 Power Button (SW1)
The power button (SW1), located next to J1, controls power to the SYS-ITX-
N-3900. The first time you connect power to J1, the power button is
bypassed and the embedded computer powers up automatically. See
“Rear Panel Connectors” on page 12 for switch location.
After the initial power up, press
SW1
briefly to power the unit on or off,
depending on the present state.
If the unit accidentally locks up and is unresponsive, press and hold
SW1
for four (4) seconds to perform a hard restart.
Pin
Name
1
+12 V
2
Ground
3
Ground
4
+5 V
1
JP7/JP8
Function
1-2 Short
Normal Operation (Default)
2-3 Short
Clear CMOS Contents
1
