type1:  8 input (LK-I-8 rail) type2: 16 input (LK-I-16 boxed) type3 : 32 input (LK-I-32 boxed) type4:  4 output (LK-O-4 rail) type5:  8 output (LK-O-8 rail) type6: 16 output (LK-O-16 rail) type7:  32 output (LK-O-32 rail) type8:  8 output (LK-O-8 boxed) type9: 16 output (LK-O-16 boxed) type10: 32 output (LK-O-32 boxed) type11: 8 in 8 out (LK-IO-8 boxed) type12: 16 in 16 out (LK-IO-16 boxed type13: 64 inputs (NLK-I-64) type14: 64 outputs (NLK-O-64)