As stated, MTH has had a transition plan for boards. We replaced 5V with PS-2 3V boards with 5V connectors. As 3V wind down, the first supply chain to dry up was the PS-2 3V with 5V connectors. So when tech's order AE-15/16, MTH sends the PS-32 5V instead.
The PS-32 3V version has not been issued for replacement of PS-2 3V with 3V connectors yet since MTH still has AE-10/11 in stock. But they did release it in the first PS-3 upgrade kits. So it is around the corner.
Here is another piece of info that I was able to pick up.
As stated in a few post, it is designed for use with PS-2 3V sound files. As the code in the PS-32 pickups the gear ratio and hardware data (light features, smoke control) from the PS-2 sound file.
PS-3 has it's own hardware table in the flash code specific to PS-3 engines. What I found out is PS-3 sound files will work properly in PS-32 also, because by procedure, the sound file engineers still included the hardware table in the PS-3 sound file. Even though PS-3 boards get the information from the firmware table. You just load the sound file, not the flash code.
The one caveat is that gear ratio and lighting may not match for a specific engine.
If you load the specific file from your engine PS-2 upgrade file for PS-2 5V engines, or PS-2 3V for 3V engines you get the original sound file and characteristics. Maybe some PS-3 kept that all the same, if so it would work. Diesel ratio as an example seem to be the same. But PS-3 lighting on diesels can be totally different from model to model because of the expanded lighting capability of PS-3. G
