Product code (12NC): 9446 101 04XYZ

 CNT-104S is configured using factory installed HW options, and customer installable options via SW license keys. The 12NC code only describes the HW configuration. SW enabled options and built-in measurement apps are coded separately, and not shown in the HW configuration 12NC code

X = RF/Microwave frequency option
0 = None
1 = Not used
2 = Reserved
3 = Reserved
4 = Reserved
5 = Reserved
6 = 3 GHz (Option 10)
7 = 10 to 24 GHz CW (Option 110, SW upgradable from 10 to 24 GHz)
8 = Reserved
9 = Customer special

Y = Oscillator option
2 = TCXO (standard oscillator in CNT-100, New)
5 = OCXO, High stability (Option 30, same as for CNT-9x)
6 = OCXO, Ultra-high stability (Option 40, same as for CNT-9x)

Z = Rear panel inputs and other HW options
1 = standard
2 = rear inputs A, B, D, E and C (Option 11/100)
3 = Reserved
4 = Reserved
5 = Reserved
6 = Reserved
9 = Customer special