NX Supervisor Key
All NX Testers are equipped with a key slot on the front panel, designed to accept security keys.
The Supervisor Key unlocks access to Setup Menus, allows program termination,
and activates the control port. The Supervisor Key may also be used
to satisfy a test program's requirement that a supervisor be present
to continue. The Supervisor Key contains data storage areas that can
be programmed, using the NX Key Programmer,
to contain the Supervisor's ID and other useful data.