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Management
The BPCH provides the mechanism to connect the cabinet to the management server via a
1 Gb Ethernet out-of-band network. Each BPCH has two management server-facing 1 Gb
Ethernet ports or buses so that the BPCH connects to a fully redundant network.
1.5.3 Bulk Power Control and Communications Hub
The front view of the bulk power control and communications hub (BPCH) is shown in
Figure 1-34.
Figure 1-34 BPCH front view
The following connections are shown in Figure 1-34:
T2: 10/100 Mb Ethernet from HMC1.
T3: 10/100 Mb Ethernet from HMC2.
T4: EPO.
T5: Cross Power.
T6-T9: RS422 UPIC for WCUs.
T10: RS422 UPIC port for connection of the Fill and Drain Tool.
T19/T36: 1 Gb Ethernet for HMC connectors (T19, T36).
2x – 10/100 Mb Ethernet port to plug in a notebook while the frame is serviced.
2x – 10/100 Mb spare (connectors contain both eNet and ½ Duplex RS422).
T11-T19, T20-T35, T37-T44: 10/100 Mb Ethernet ports or buses to the management
processors in CEC drawers and storage enclosures. Max configuration supports 12 CEC
drawers and one storage enclosure in the frame (connectors contain both eNet and ½
Duplex RS422).
1.5.4 Bulk Power Regulator
This section describes the bulk power regulator (BPR).
Input voltage requirements
The BPR supports DC and AC input power for the Power 775. A single design accommodates
both the AC and DC range with different power cords for various voltage options.
DC requirements
The BPR features the following DC requirements:
The Bulk Power Assembly (BPA) is capable of operating over a range of 300 to 600 VDC
Nominal operating DC points are 375 VDC and 575 VDC
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IBM Power Systems 775 for AIX and Linux HPC Solution
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