AIMB-258 User Manual 24
1.14.11 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”,
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:
1.14.12 USB 2.0 Connector (USB56, USB78)These connectors are for USB 2.0 ports. Connect the USB module cable to any of
these connectors, then install the module to a slot opening at the back of the system
chassis. These USB connectors comply with USB 2.0 specification that supports up
to 480 Mbps connection speed.
Table 1.12: ATX power supply LED status (No support for AT power)
Power Mode LED (ATX Power Mode)
(On/Off by tentative
button)
LED (AT Power Mode)
(On/Off by switching
power supply)
LED (AT Power Mode)
(On/Off by front panel
switch)
PSON1
(On Back plane)
Jumper Setting
2-3 pin closed 1-2 pin closed Connect 1-2 pin cable
with switch
System On On On On
System Status Fast flashes Fast flashe s Fast flashes
System Off Slow flashes Off Off