Front Panel Connectors (Jfp1); Power Led (Jfp1); Table 2.1: Ps/2 Or Atx Power Supply Led Status; External Speaker (Jfp1 Pins 10, 12, 14, 16) - Advantech ASMB-781 User Manual

2.11

Front Panel Connectors (JFP1)

There are several external switches and LEDs to monitor and control the ASMB-781.
JFP1
2.11.1

Power LED (JFP1)

JFP1 pin9 and pin13 are for the power LED. Refer to Appendix B for detailed infor-
mation on the pin assignments. If a PS/2 or ATX power supply is used, the system's
power LED status will be as indicated as follows.

Table 2.1: PS/2 or ATX power supply LED status

Power mode
System On
System Suspend
System Off
System Off in deep sleep
2.11.2

External Speaker (JFP1 pins 10, 12, 14, 16)

JFP2 pins 10, 12, 14, 16 connector for an external speaker. The ASMB-781 provides
an onboard buzzer as an alternative. To enable the buzzer, set pins 14-16 as closed.
2.11.3 HDD LED Connector (JFP1 pins 5 & 7)
You can connect an LED to connector JFP1 to indicate when the HDD is active.
ASMB-781 User Manual
LED (PS/2 power)
On
Fast flashes
Off
Off
10 12 14 16
20
LED (ATX power)
On
Fast flashes
Off
Off