[chrisinmd]

"LED Drivers (see pinouts on pages 7-10)
PORT 1 and PORT 3 each provide four LED output drivers. These LED drivers allow the connection of
external LEDs that duplicate the function of the top eight Robot Feedback LEDs on the Operator
Interface. The LED drivers provide 5V that is current limited to 10mA. Connect the LED’s anode to
the desired LED drive pin. Connect the LED’s cathode to any ground pins."

This is from the 2005 OI manual.
From what I understand, the LED driver output pins 5,8,9,15 will power an LED, but I'm not sure about a lighted switch. The pin 1 +5v is for the joystick pots and other analog input devices. It only provides 100mA. I believe it's legal to use lighted switches, but you need an external power source. Would someone else please chime in because we want to do some feedback on the control board and the OI doesn't put out enough power for LEDs and switches, as shown below.

"[2] LED drivers provide 5V at 10mA
[3] +5V Aux is to be used for potentiometers in Joysticks and custom I/O boxes.
[4] Do not use +5V Aux for lamps or LEDs.
[5] The current limit of the +5V Aux from all 4 ports is about 100mA. The Aux Fault
illumination when the current draw from the +5V Aux Outputs total about 120
Aux voltage will have dropped to about 4.5 volts. Worse case, short condition:
seconds, the voltage will be at about 300 mV with a current of about 250 mA."