IBM eserver p Series Service Manual page 37

Processor Subsystem Connected to Eight Model D10 I/O Subsystems:
Processor Subsystem Connected to Eight Model D20 I/O Subsystems:
1 Processor Subsystem
1 Processor Subsystem
2 I/O Subsystem
1
0
1
0
1
0
1
0
B1
A1
B0
A0
1
1
0
1
0
2
1
0
1
0
2 I/O Subsystem
Chapter 1. Reference Information
17