The NX System provides security in two very important ways:
→ Security through access control
→ Security through traceability
Key Controlled Access
The NX Tester is equipped with a key slot, accessible on the front panel. This key slot accepts either a Supervisor Key or an Operator Key.
 
The Supervisor Key unlocks access to setup menus, permits 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 Operator Key may be used to satisfy a test program's requirement that an operator be present to continue. The Operator Key contains data storage areas that can be programmed to contain the Operator's ID and other useful data.
 
Program Identification Key Traceability
Every test program generated by the NX Editor has a program identification code - this is an alphanumeric identifier that is associated with the test program file. This code is visible on the NX Tester, so that it can be compared with the code associated with the test file generated by the NX Editor. This provides for traceability and assurance that the program being executed on the NX Tester is the same version developed on the NX Editor.