Hard Drive Led (Cn7, Pin 13, 14) - Aaeon SBC-558 Manual

Hard drive LED (CN7, Pin 13, 14)

You can connect an LED to indicate when an IDE device is in use.
The pin assignments for this connector are as follows:
CN7
Hard drive LED (CN7, Pin 13, 14)
Pin
13
14
13
14
Function
HD-LED+
HD-LED-
Chapter 2 Installation 31