If the light does not flash, unplug the cable AT THE COMPUTER and run the
test again. You should get a 'Write Fault Error" from DOS. If you do not get
the error message it indicates that you are sending the data to the wrong
port or that there is a conflict with your serial ports. Change ports and/or
remove the conflicting device.
3.) Try testing the drawer in PULSE MODE. Reset the switches as listed for
PULSE MODE and type:
A:> DIR > COM1:
test #2
If the drawer triggers with test #2 try resetting to factory default and running test #1
again. Remember to unplug power each time you change the switch settings.