There's three families of electronics:
- Series I/II
- Distillate
- Activator
Series I/II is just that.
The Distillate family includes Spoiler and original Europa and Elan electronics.
Activator is anything made with the individual modules, so that covers Essence, Epic, Signature, 20th Anniversary and soon to be the Elan/Europa.
All Alembic electronics families are active.
Hope this helps!