DirectOut Technologies EXBOX.BLDS User Manual page 42

page 42 of 64
GPI self test
To check each GPI for proper functionality:
• connect each input with ground
• switch on the device
The LEDs in the mid-section (ACTIVE PORT) indicate
the result of the self test for a short moment at
power up - for each connected input accordingly.
GPI 1
GPI 3
Result:
• LED blinking = GPI contact is closed
• LED OFF
The self test helps to trace a possible issue with the
installation; i.e. if open contact is expected and the
led is blinking (e.g. short-circuit) or if a closed contact
is expected but the led is not blinking (e.g. broken
link).
CHAPTER 4: Operation
= GPI contact is not closed
EXBOX.BLDS Manual - Version 1.3
GPI 2
GPI 4