Since a few people have been asking, I created a sample wiring diagram
for Open Access v2.11 and added it to the install wiki.
Check out:
http://code.google.com/p/open-access-control/wiki/HardwareTips?ts=1331835056&updated=HardwareTips
This will probably clarify a few things like how to make the green
"door open" LED on the readers work and using an exit sensor.
Thanks!
John