11
CALCULATION RULES
Recommended according to German standards.
• When using one key-way for KD/KA and MKS calculate with 2-step-progression (code groups, even, odd)
• Maximum repeated depths/cuts per key: 3
5
2
5
22
6
5
2
55
2
5
• Maximum consecutive repeated depths/cuts per key: 2
535
22
6
5
333
42
• No stair-step depths/cuts
543210
• At least 1 minimum jump of 4 steps
54
62
43
543454
Calculation Rules Specific to Vitess™
• First chamber is fixed: Intop pin no. 5
• No master pins on chamber 1
• 2nd pin can only “jump“ 4 heights upwards or downwards.
51
3624
50
3624
• Remaining chambers max jump is 6
51
717
4
5
1818
4
• Due to the profile check pin we recommend not to use master pins no. 2 (only 4 or larger), however 2 can be used
in case of “emergency” (no more codes available)
MASTER KEY SYSTEM MANAGEMENT
2-Step Progression (Even/Odd)
• 2-step progression allows us to manage all codes/pins/cuts that our system can use
to generate codes for our master key systems or simply KD/KA cylinders; this way no
keys would be repeated
• Odd/even codes management: B = odd
A = even
• 6 pins generate 64 groups (Even/Odd) from AAAAAA to BBBBBB
• Depending on the size/complexity one group might be used for more then just one
master key system
Even A Odd B
Z
Y
X
0
1
2
3
4
5
6
7
8
9
