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IBM Power 595 Technical Overview and Introduction
2.3.2 Bulk power controller (BPC)
One BPC, shown in Figure 2-20, is located in each BPA. The BPC provides the base power
connections for the internal power cables. Eight power connectors are provided for attaching
system components. In addition, the BPC contains a service processor card that provides
service processor functions within the power subsystem.
Figure 2-20 Bulk power controller (BPC)
Table 2-6 lists the BPC component location codes.
Table 2-6 Bulk power controller (BPC) component location codes
2.3.3 Bulk power distribution (BPD)
Redundant BPD assemblies provide additional power connections to support the system
cooling fans, dc power converters contained in the CEC, and the I/O drawers. Each power
distribution assembly provides ten power connections. Two additional BPD assemblies are
provided with each Powered Expansion Rack.
Figure 2-21 details the BPD assembly.
Figure 2-21 Bulk power distribution (BPD) assembly
Table 2-7 on page 61 lists the BPD component location codes.
Location code
Component
Location code
Component
U
n
-P
x
-C1
BPC (front or rear)
U
n
-P
x
-C1-J06
BPF
U
n
-P
x
-C1-J01
BPC Cross Communication
U
n
-P
x
-C1-J07
BPC Cross Power
U
n
-P
x
-C1-J02
Ethernet to BPH
U
n
-P
x
-C1-J08
Not used
U
n
-P
x
-C1-J03
Ethernet to BPH
U
n
-P
x
-C1-J09
Not used
U
n
-P
x
-C1-J04
UEPO Panel
U
n
-P
x
-C1-J10
MDA 1 and MDA 3 (one Y cable
powers two MDAs)
U
n
-P
x
-C1-J05
Not used
U
n
-P
x
-C1-J11
MDA 2 and MDA 4 (one Y cable
powers two MDAs)
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