E-Keying; Figure 2-3 Backplane Power Segments - Emerson AXP1620 Installation And Use Manual

E-Keying

2.6.2
AXP1620 Installation and Use (6806800E23E)
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The blade slots are numbered physically from 1 to 16 going left to right along the front of the
shelf. Numbers on slots 1 and 16 designate the hub slots. Each slot also has a "logical" slot
number that defines it for backplane connectivity; logical slot numbers are not shown on the
shelf. The backplane functional layout is shown in the following figure.
Figure 2-3 Backplane Power Segments
Power
Segments
A3 B3
1 2 3
Physical
Logical 1 3 5
ATCA
Blade Slots
Power A1 A1 A1
Segments
B1 B1 B1
Lower FTM
A4 B4
A A
1 2
C1
Lower Rear
PEM A
E-Keying
The AXP1620 supports the shelf management infrastructure with a process called E-Keying. E-
Keying replaces the mechanical connector keying method used in earlier backplane designs.
E-Keying prevents damage to blades, prevents misoperation, and verifies fabric compatibility.
E-Keying entries are present as FRU information in the shelf FRU and all blades present in the
shelf. The E-Keying entries describe the Base Interface, Fabric Interface, Update Channel
Interface as implemented by the shelf and blades. E-keying allows blades that support different
PICMG 3 standards to be used in the same shelf.
More detailed information, such as connectivity and requirements for E-Keying can be found in
PICMG 3.0 R1.0 AdvancedTCA Specification and the AXP1620 Subsystem IPMI
Programmer's Reference listed in
FTM 1
4 5 6 7 8 9
7 9 11 13 15 4
A1 A1 A1 A1 A1 A2
B1 B1 B1 B1 B1 B2
FTM 2
A A
3 4
SAM A SAM B
C1 D1 C1 D1
Appendix A, Related
AXP1620 Shelf Description
10 11 12 13 14
6 8 10 12 14
A2 A2 A2 A2 A2
B2 B2 B2 B2 B2
B B B B
1 2 3 4
D1
PEM B
Documentation.
15 16
16 2
A2 A2
B2 B2
49