Constant Value

Meaning

tt5211m2 = 0

IBM-5211-2 24 rows x 80 columns

tt3179m2 = 1

IBM-3179-2 24 rows x 80 columns

tt3477mFC = 2

IBM-3477-FC 27 rows x 132 columns

tt3180m2 = 3

IBM-3180-2 27 rows x 132 columns