MP80RA HD Media Player Manual
Page
26
of
32
Rev. 107- 06/21/16
APPENDIX
General Purpose Input/Output (GPIO) Options
The MP80RA may be ordered with a GPIO interface board to allow pushbuttons to trigger actions on the media player.
GPIO PINOUT
The eight Button INPUT pins (pin 2) have internal 4.7 K ohm pull-up resistors to +5V. Pull the line to ground (pin 1)
to trigger input. There is a 3 second lockout after trigger to de-bounce the input.
The LED interface has a ground and a positive VCC that is driven by a transistor. When activated, the LED is
illuminated. Normal condition is off. Current draw on this port should not exceed 20 mA. Use of a current limited
LED illuminated button is recommended.
Reaction to a particular button press can be assigned by using the TOOLS, Button Setup option in our QuickSign
software. Each GPIO port may be assigned a Video, Playlist, or a Playlist with Layout.
Note:
The GPIO interface on the MP80 is a double stack with buttons 1 to 4 on the bottom and buttons 5 to 8 on the top. The
four pin interface is keyed, so the button will only insert with the correct orientation. Use care when inserting the button
harness in order to prevent bending the GPIO interface pins.
1 = Button Ground
1 2 3 4
2 = Button Input
3 = VCC for LED +
4 = LED Ground -
