Atx Power Control Connectors (Cn20 And 21); Atx Feature (Cn20) And Soft Power Switch (Cn21); Audio Interface (Cn43, Only For Ver. A2) - Advantech PCA-6184 User Manual

2.13 ATX Power Control Connectors (CN20 and 21)

2.13.1 ATX feature (CN20) and soft power switch (CN21)

The PCA-6184 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.)
Note:
Warnings:
Important:
2.14 AC-97 Audio interface (CN43, only for Ver. A2)
The PCA-6184 provides AC-97 audio through PCA-AUDIO-00A1 mod-
ule from Advantech.
PCA-6184 User's Manual
CPU
If you will not be using an ATX power connector, make sure
that pins 2-3 of CN20 are closed.
1. Make sure that you unplug your power supply when add-
ing or removing expansion cards or other system compo-
nents. 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.
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 sup-
porting the "Wake-on-LAN" function.
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CN20