ETC sold consoles to ARRI (GB) who then rebranded the units with their own logos and renamed. Below is a table correlating the ARRI names to the ETC names. Functionally the consoles are almost identical and you should refer to the relevant ETC product page and user manuals. As a side note, ARRI (GB) was eventualy sold to ETC and ETC Europe was born.
The units are 'almost' the same but many of the ARRI consoles had a small effects PCB built into the left side of the facepanel.