I/O Subsystem Positions, Fully Populated Rack (Rear View with IBFs)
C1
4B
1
2
3
C1
Rack
C2
I/O Book (Book 0)
1
First I/O Subsystem
C2
2
3
4B
Second I/O Subsystem
Third I/O Subsystem
Two IBFs (primary rack), Position 4
Appendix G. Subsystem Positioning and Cabling
71