interfacing labview with an external output

[crabtree]

I am doing a production line inspection system based on LabView. My part is to receive an input (pass or fail) and relay a signal to a motor controller unit to accept or reject a product. I have already constructed the VI so now i need to test it with a kind of output (eg. LEDs). I need help as I dun have any idea, only assuming that I will need parallel port connection to my PC. Thanks.

[nyc_(is_out_of_here)]

using the PC's parallel port to send a high or low signal to indicate pass or fail is the cheapest way

the following article talks about LabVIEW and the parallel port
http://zone.ni.com/devzone/conceptd.nsf/webmain/72C6FC6CE4AD4D1386256B1800794596?opendocument