Module Type Display; Post & Indicator Leds; Digital I/O Leds - ADLINK Technology COM Express Express-BASE7 User Manual

8.2.

Module Type Display

At the right edge of the Express-BASE7, 7 mini LEDs
(LED 6-11, LED24) indicate the type of COM Express
module installed on the Express-BASE7.
8.3. POST & Indicator LEDs
An LPC based POST display is added for debgging.
The two LEDs shows the actual POST data.
A row of mini LEDs to the left of the POST display indicates the following:
LED1 5VSB: ATX power attached on standby or active
LED3 PWR: Indicates power on
LED20 HDD: Indicates hard drive activity
LED23 S3: Indicates S3 status
8.4.

Digital I/O LEDs

LED12 – LED19 are indicators for the Digital I/O connector
CN41. When the I/O signal is high, the LED will light.
The I/O 0 signal corresponds to LED19,
The I/O 7 signal corresponds to LED12.
40
COM Express Type: 1-2, 3, 4, 5, 6, 7 or wrong pinout COM Express Type: 1-2, 3, 4, 5, 6, 7 or wrong pinout
Switches, POST and LEDs