| Hardware Version name | Firmware | Support PQ | Latest firmware version |
| No PQ 16-bit | 4X.1.4.YY | --- |
44.1.4.68 40.1.4.68 |
| PQ Class S (2007) on 16-bit HW | 4X.5.5.YY | EN 50160 2007 |
44.5.5.28 40.5.5.28 |
| Class S on 32-bit, Board N1 | 4X.5.6.YY | EN 50160 2007 |
44.5.6.24 40.5.6.24 |
| Class S on 32-bit, Board N2 | 4X.5.7.YY | EN 50160 2007 |
44.5.7.92 40.5.7.92 |
| Class S + FCAS on 32-bit, Board N2 | 4X.5.8.YY | EN 50160 2010 |
44.5.8.57 40.5.8.57 |
|
Class A on 32-bit, Board N2
|
4X.5.9.YY |
EN 50160 2022 IEEE 1159 |
44.5.9.21 40.5.9.21
|
* The first segment of firmware version number 44 - for PM335 devices.
The first segment of firmware version number 40 - for EM235 devices.