Advantech PCA-6185, User Manual

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PCA-6185 User’s Manual 28
2.11.8 ATX feature connector (CN20) and soft power
switch connector (CN21)
The PCA-6185 can support an advanced soft power switch function if an
ATX power supply is used. To enable the soft power switch function:
1.
Connect the 3-pin plug of the cable to CN20 (ATX feature connec-
tor).
2. Connect the power on/off button to CN21. (A momentary type of
button should be used.)
2.11.9 Controlling the soft power switch
Users can also identify the current power mode through the system's
power LED (see Section 2.12.1).
Note: If you will not be using an ATX power connector,
make sure that pins 2-3 of CN20 are closed.
Warnings! 1. Make sure that you unplug your power supply
when adding or removing expansion cards or
other system components. Failure to do so may
cause severe damage to both your CPU card
and expansion cards.
2. ATX power supplies may power on if certain
motherboard components or connections are
touched by metallic objects.
Important! Make sure that the ATX power supply can take at
least a 720 mA load on the 5 V standby lead
(5VSB). If not, you may have difficulty powering
on your system and/or supporting the "Wake-on-
LAN" function.