User guide

38 007-5832-001
3: System Overview
Figure 3-3 Functional Block Diagram of the Individual Rack Unit
N
I
2
-
3
N
I
2
-
3
N
I
0
-3
N
I
0
-
3
N
I
2
-
3
N
I
2
-
3
N
I
0
-
3
N
I
0
-
3
N
I
2
-
3
N
I
2
-
3
N
I
0
-
3
N
I
0
-
3
N
I
2
-
3
N
I
2
-
3
N
I
0
-
3
N
I
0
-
3
N
I
1
-
1
N
I
1
-
3
N
I
3
-
1
N
I
3
-
3
N
I
1
-
3
N
I
1
-
1
N
I
3
-
3
N
I
3
-
1
N
I
1
-
1
N
I
1
-
3
N
I
3
-
1
N
I
3
-
3
N
I
1
-
3
N
I
1
-
1
N
I
3
-
3
N
I
3
-
1
N
I
0-2
0
3
N
I
2-2
N
I
2-2
N
I
2-2
-
N
I
0
-
2
N
I
0-2
N
I
0
-
2
N
I
2
-
2
1
2
N
I
1
-
1
N
I
1
-
3
N
I
3
-
1
N
I
3
-
3
N
I
1
-
3
N
I
1
-
1
N
I
3
-
3
N
I
3
-
1
N
I
1
-
1
N
I
1
-
3
N
I
3
-
1
N
I
3
-
3
N
I
1
-
3
N
I
1
-
1
N
I
3
-
3
N
I
3
-
1
N
I
2
-
2
4
7
N
I
0
-
2
N
I
0
-
2
N
I
2
-
2
N
I
0
-
2
N
I
2
-
2
N
I
0
-
2
N
I
2
-2
5
6
N
I
3
-
0
N
I
3
-
0
N
I
3
-
0
N
I
3
-
0
N
I
3
-
0
N
I
3
-
0
N
I
3
-
0
N
I
3
-
0
N
I
1
-
0
N
I
1
-
0
N
I
1
-
0
N
I
1
-
0
N
I
1
-
0
N
I
1
-
0
N
I
1
-
0
N
I
1
-
0
N
I
1
-
2
N
I
1
-
2
N
I
1
-
2
N
I
1
-
2
N
I
3
-
2
N
I
3
-
2
N
I
3
-
2
N
I
3
-
2
N
I
3
-
2
N
I
1
-
2
N
I
3
-
2
N
I
1
-
2
N
I
3
-
2
NI3-2
N
I
1
-
2
N
I
1
-
2
IRU Backplane Connections
Left
Backplane
Right
Backplane
Note: this drawing only shows the cabling
between the compute blades within the
IRU. External cabling (cabling that exits
the IRU) is not shown.