GTCO Summagrid IV - Users Guide Part 3 - Manual (Page 31)

Summagrid IV 31
F.1.5 MM/SummaSketch DIP Switch Settings
When configuring Summagrid IV in the MM/SummaSketch format, the DIP switches
perform the same functions except in the following situation:
When the tablet is placed in MM binary format, it defaults to 8 data bits,
regardless of how DIP switch A-7 (switch bank A, position 7) is set.