ASMB-785 User Manual 24
2.9.1 Power LED (JFP3 pins 1, 3)
JFP3 is a 5-pin connector for the power LED. Refer to Appendix B for detailed infor-
mation on the pin assignments. If a ATX power supply is used, the system’s power
LED status will be as indicated as follows.
2.9.2 External Speaker (JFP2 pins 1, 4, 7, 10)
JFP2 pins 1, 4, 7, 10 connector for an external speaker. The ASMB-785 provides an
onboard buzzer as an alternative. To enable the onboard buzzer, set pins 7-10 as
closed.
2.9.3 HDD LED Connector (JFP1 pins 2 & 5)
You can connect an LED to connector JFP1 to indicate when the HDD is active.
2.9.4 SNMP SMBus Connector (JFP2 pins 8 & 11)
ASMB-785 supports Advantech module for providing a platform independent system
management. When you're installing module on ASMB-785, please connect it to pins
8 and 11 of JFP2. (Pin 8 is data pin, pin 11 is clock pin)
2.9.5 ATX Soft Power Switch (JFP1 pins 3 & 6)
If your computer case is equipped with an ATX power supply, you should connect the
power on/off button on your computer case to pins 3 and 6 of JFP1. This connection
enables you to turn your computer on and off.
Table 2.2: PS/2 or ATX power supply LED status
Power mode LED
System On On
System Suspend Fast Flash
System Off Off
System Off in deep sleep Off
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