Datex - Selector Switch Truth Tables

Table 1: BCD
Readout Symbol
Common C Connected to Terminals
1
2
4
8
0
 
 
 
 
1
 
 
 
2
 
 
 
3
 
 
4
 
 
 
5
 
 
6
 
 
7
 
8
 
 
 
9
 
 
Table 2: Decimal
Readout Symbol
Common C Connected to Terminals
0
1
2
3
4
5
6
7
8
9
0
                 
1
                 
2
                 
3
                 
4
                 
5
                 
6
                 
7
                 
8
                 
9
                 
Table 4: Single Pole Repeating
Readout Symbol
Common C Connected to Terminals
1
2
+
-
0
0
 
-
+
1
5
 
+
-
0
0
 
-
+
1
5
 
+
-
0
0
 
-
+
1
5
 
+
-
0
0
 
-
+
1
5
 
+
-
0
0
 
-
+
1
5
 
Table 5: Hexidecimal
Readout Symbol
Common C Connected to Terminals
1
2
4
8
0
 
 
 
 
1
 
 
 
2
   
   
   
3
 
 
4
 
 
 
5
 
 
6
 
 
7
 
8
 
 
 
9
 
 
10 (A)
 
 
11 (B)
 
12 (C)
 
 
13 (D)
 
14 (E)
 
15 (F)
Table 7: Binary Coded Octal
Readout Symbol
Common C Connected to Terminals
1
2
4
0
 
 
 
1
 
 
2
 
 
3
 
4
 
 
5
 
6
 
7
Table 8: BCD plus complement one common
Readout Symbol
Common C Connected to Terminals
1
2
4
8
1
2
4
8
0
 
 
 
 
1
  
 
 
 
2
 
 
 
 
3
 
 
 
 
4
 
 
 
 
5
 
 
 
 
6
 
 
 
 
7
 
 
 
 
8
 
 
 
 
9
 
 
 
Table 9: Hexidecimal + complement one common
Readout Symbol
Common C Connected to Terminals
1
2
4
8
1
2
4
8
0
 
 
 
 
1
 
 
 
 
2
 
 
 
 
3
 
 
 
 
4
 
 
 
 
5
 
 
 
 
6
 
 
 
 
7
 
 
 
 
8
 
 
 
 
9
 
 
 
 
10 (A)
 
 
 
11 (B)
 
 
 
 
12 (C)
 
 
 
 
13 (D)
 
 
 
 
14 (E)
 
15 (F)
Table 11: BCD complement only
Readout Symbol
Common Y or C Connected to Terminals
1
2
4
8
0
1
 
2
 
3
 
 
4
  •
 
5
 
 
6
 •
 
 
7
 
 
 
8
 •
 
9
 
 
Table 1: BCD with separate common to not true bits
Readout Symbol
Common X Connected to Terminals= •
Common Y Connected to Terminals= o
1
2
4
8
0
o
o
o
o
1
o
o
o
2
o
o
o
3
o
o
4
o
o
o
5
o
o
6
o
o
7
o
8
o
o
o
9
o
o

 

     


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