Advantech AIMB-285, User Manual

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AIMB-285 User Manual 16
2.8.1 ATX soft power switch (JFP1/PWR_SW)
If your computer case is equipped with an ATX power supply, you should connect the
power on/off button on your computer case to (JFP1/ PWR_SW), for convenient
power on and off.
2.8.2 Reset (JFP1/RESET)
Many computer cases offer the convenience of a reset button. Connect the wire for
the reset button.
2.8.3 HDD LED (JFP1/HDDLED)
You can connect an LED to connector (JFP1/HDDLED) to indicate when the HDD is
active.
2.8.4 External speaker (JFP1/SPEAKER)
JFP1/SPEAKER is a 4-pin connector for an external speaker. If there is no external
speaker, the AIMB-285 provides an onboard buzzer as an alternative. To enable the
buzzer, set pins 7 & 10 as closed.
2.8.5 Power LED and keyboard lock connector (JFP2/PWR_LED &
KEY LOCK)
(JFP2/PWR_LED & KEY LOCK) is a 5-pin connector for the power on LED and Key
Lock function. Refer to Appendix B for detailed information on the pin assignments.
The Power LED cable should be connected to pin 1-3. The key lock button cable
should be connected to pin 4-5. There are 3 modes for the power supply connection.
The first is “ATX power mode”; the system turns on/off by a momentary power button.
The second is “AT Power Mode”; the system turns on/off via the power supply switch.
The third is another “AT Power Mode” which makes use of the front panel power
switch. The power LED status is indicated in the following table:
Table 2.2: ATX power supply LED status (No support for AT power)
Power mode LED
(ATX Power Mode)
(On/off by momen-
tary button) LED
(AT power Mode)
(On/off by switching
power supply) LED
(AT power Mode)
(On/off by front
panel switch)
PSON
2
(on back plane)
jumper setting
pins 2-3 closed pins 1-2 closed Connect pins 1 & 2 to
panel switch via cable
System On On On On
System Off Off flashes (windows
7)
Slow flashes (win-
dows 8.1) Off Off
System Sus-
pend(S3) Fast flashes NA NA
System Sus-
pend(S4) Slow flashes NA NA