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3 indicator leds, 4 digital i/o leds, Indicator leds – ADLINK Express-BASE User Manual

Page 40: Digital i/o leds

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Express-BASE User’s Manual

Page 40

8.3 Indicator LEDs

A row of mini LEDs to the left of the POST
display indicates the following:

LED20 5Vsb: ATX power attached

on standby or active

LED2

HDD: Hard disk activity
(SATA and PATA)

LED21 WDT: programmable LED to debug

watchdog during count down

8.4 Digital I/O LEDs

LEDX1 - LEDX8 are indicators for the
Digital I/O Connector CNY2. When the I/O
signal is high, the LED will light. The I/O 0
signal corresponds to LEDX1, and the I/O 7
signal corresponds to LEDX8.