Advantech AIMB-221 manual Power LED and keyboard lock connector JFP3

2.4.6Power 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. 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”, system is on/off by a tentative power button. The second is “AT Power Mode”, system is on/off by the switch of the Power supply. The third is another “AT Power Mode” which is using the front panel power switch. The power LED status is indicated as fol- lowing table:

Table 2.1: ATX power supply LED status (No support for AT power)

Power Mode	LED (ATX Power Mode) LED (AT Power Mode) LED (AT Power Mode)
	(On/Off by tentative	(On/Off by switching	(On/Off by front panel
	button)	power supply)	switch)
PSON1	2-3 pin closed	1-2 pin closed	Connect 1-2 pin cable
(On Back plane)			with switch
Jumper Setting
System On	On	On	On
System Status	Fast flashes	Fast flashes	Fast flashes
System Off	Slow flashes	Off	Off

JFP3

JFP3

pin.1PWR_LED+

pin.2NC

pin.3GND

pin.4#KB_LOCK

pin.5GND

Chapter 2 Connecting Peripherals

23 AIMB-221 User Manual