Input Power Supply Lines; Figure 23 Example Of A Power Supply Connection When A Power Distribution Unit Is Not Used; Figure 24 Dual-Line Power Supply (When Connecting To Power Sockets) - Fujitsu ETERNUS AB Series Site Planning Manual

1. ETERNUS AB/HB Installation
Outlet/Socket Specifications
●
For Direct (No Power Distribution Unit) Connections
The following diagram shows a power supply connection example when no power distribution
units are used.

Figure 23 Example of a Power Supply Connection When a Power Distribution Unit Is Not Used

CP
PSU: Power Supply Units
CP: Circuit Protectors

Input Power Supply Lines

It is recommended to use multiple power supply facilities in the building for power supply redun-
dancy, or divide the AC input system for the ETERNUS AB/HB into a dual system (line 0 and line 1).
Because the power supply of the ETERNUS AB/HB is configured redundantly, business can continue
even if one of the power supply lines fails. However, a single power supply facility configuration is
also allowed for the entire system optimization (including the server). When selecting a single con-
figuration, take into consideration the availability of the system.

Figure 24 Dual-Line Power Supply (When Connecting to Power Sockets)

Line 1
Line 0
ETERNUS
Drive shelf
Drive shelf
Controller shelf
Line 0
Do
• Only connect the ETERNUS AB/HB to circuit protectors.
Power distribution unit ETERNUS
PSU
PSU
CP
Line 1
48
Site Planning Guide