Section 4 - 5
K
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C
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R
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K
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The following key symbols are the lock industry standard, used by manufacturers, BHMA, DHI and ALOA.
They should be used when specifying any master keyed system. The symbols are constructed as follows:
Abbreviation Key type
Symbolized by
Symbols or "keysets"
GGMK
great grand master key
GGM
GGM
GMK
grand master key
single letter
A, B, C, T
MK
master key
pair of letters
AA, AB, CC, BA, TR
CK
change key
letters and numbers
AA1, AB29, 17AA, SKD1
One level of keying - the most secure keying
Locks are never master keyed, but keyed alike (KA) or keyed different (KD). If you have two cylinders keyed
to SKD1, it is a keyed alike group.
SKD1
SKD2
SKD3
SKD4
SKD5
SKD6
Two levels of keying - simple master key system
Consists of a Master and change keys. Master key is named with an identical pair of letters, AA, BB, CC, etc.
The change key numbers go
in front of
the letter pair.
AA
1AA 2AA 3AA 4AA 5AA
SKD1
Three levels of keying - grand master key system
Consists of a Grand Master and multiple Master keys under the Grand. Change key numbers go
after
the
letter pair. The first letter of the master key symbols is the grand.
A
AA
AB
AA1 AA2 AA3
A1
AB1 AB2 AB3
SKD1
SKD2
Four levels of keying - great grand master key system.
Consists of a Great Grand Master with multiple Grand Master "systems" under it. Change key numbers go
after
the letter pair.
GGM
A
B
AA
AB
BA
BB
AA1 AA2 AA3 AB1 AB2 AB3 BA1 BA2 BA3 BB1 BB2
SKD1
The Standard Key Coding System
Содержание 5140 Series
Страница 1: ...Technical Manual ...
Страница 5: ...Technical Manual Section 1 Introduction ...
Страница 11: ...Technical Manual Section 2 Product Information ...
Страница 38: ...Section 2 27 Product Information Peaks Global Notes ...
Страница 39: ...Technical Manual Section 3 Key Cutting and Pinning ...
Страница 62: ...Section 3 23 Key Cutting Pinning Peaks Global Notes ...
Страница 63: ...Technical Manual Section 4 Key Control Record Keeping ...
Страница 73: ...Technical Manual Section 5 Cylinder Installation Guide ...
Страница 84: ...Section 5 11 Cylinder Installation Guide Peaks Global Notes ...
Страница 85: ...Section 5 12 Cylinder Installation Guide Peaks Global Notes ...