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2.8.1
ATX soft power switch ((JFP1+JFP2/ 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+JFP2/ PWR_SW)), for conve-
nient power on and off.
2.8.2
Reset (JFP1+JFP2/ RESET)
Many computer cases offer the convenience of a reset button. Connect the wire for
the reset button.
2.8.3
HDD LED (JFP1+JFP2/ HDDLED)
You can connect an LED to connector (JFP2/HDDLED) to indicate when the HDD is
active.
2.8.4
External speaker (JFP1+JFP2/ SPEAKER)
((JFP1+JFP2/ SPEAKER)) is a 4-pin connector for an external speaker. If there is no
external speaker, the AIMB-214 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 (JFP3 / PWR_LED &
KEY LOCK)
(JFP3 / 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 sta-
tus is indicated in the following table:
Table 2.2: ATX power supply LED status (No support for AT power)
Power mode
PSON1
(on back plane)
jumper setting
System On
System Suspend
System Off
LED
LED
(ATX Power Mode)
(AT power Mode)
(On/off by
(On/off by switching
momentary button)
power supply)
pins 2-3 closed
pins 1-2 closed
On
On
Fast flashes
Fast flashes
Slow flashes
Off
19
LED
(AT power Mode)
(On/off by front
panel switch)
Connect pins 1 & 2 to
panel switch via cable
On
Fast flashes
Off
AIMB-214 User Manual
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