Matrix Orbital LK202-24-USB - Manual (Page 11)

LK202-24-USB rev 1 11
2.1.3 Alternate USB Communications
Please verify the pin out with your motherboard manual.
2.2 General Purpose Outputs
The LK202-24-USB has six general purpose outputs. These are provided to control relays or other
electronic devices. This allows external devices to be turned on or off using your PC or controller and
software commands. (See sections 5.1.10 and 5.1.11 for the command syntax.)
The LK202-24-USB has 2 types of GPOs, low and high power. GPO 1, 2 and 3 are refered to as Low
Power GPOs and are capable of sourcing +5V at 20mA which is limited with a 240 ohm current limiting
resistors. GPO 4, 5 and 6 have no current limiting resistors and offer an optional +12V power through the
white floppy connecter located bottom left of the display.
Pin Number Description
1 +5V
2 D-
3 D+
4 Not Used
5 Ground