HP Integrity rx8620 Installation Guide, Sixth Edition - HP Integrity rx8620 Se - Page 70

Connecting AC Input Power, AC Power Input Labeling

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Installation Cabling and Power Up Step 9. Set the site power circuit breaker to ON. WARNING SHOCK HAZARD Risk of shock hazard while testing primary power. Use properly insulated probes. Be sure to replace access cover when finished testing primary power. Step 10. Set the server power to ON. Step 11. Check that the indicator light on each power supply is lit. Connecting AC Input Power The server can receive AC input from two different AC power sources. If two separate power sources are available, the server can be plugged into the separate power sources, increasing system reliability should one power source fail. The main power source is defined to be A0 and A1. The redundant power source is defined to be B0 and B1. See Figure 2-25 for the AC power input label scheme. IMPORTANT When running the server with a single power source, you must use A0 and A1. Selecting redundant power requires all four power cords connected to A0-A1-B0-B1. Figure 2-25 AC Power Input Labeling B1 A1 B0 A0 The power distribution for the Bulk Power Supplies is as follows: 70 Chapter 2

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Chapter 2
Installation
Cabling and Power Up
70
Step 9.
Set the site power circuit breaker to
ON
.
WARNING
SHOCK HAZARD
Risk of shock hazard while testing primary power.
Use properly insulated probes.
Be sure to replace access cover when finished testing primary power.
Step 10.
Set the server power to
ON
.
Step 11.
Check that the indicator light on each power supply is lit.
Connecting AC Input Power
The server can receive AC input from two different AC power sources. If two separate power sources are
available, the server can be plugged into the separate power sources, increasing system reliability should one
power source fail. The main power source is defined to be A0 and A1. The redundant power source is defined
to be B0 and B1. See Figure 2-25 for the AC power input label scheme.
IMPORTANT
When running the server with a single power source, you must use A0 and A1. Selecting
redundant power requires all four power cords connected to A0-A1-B0-B1.
Figure 2-25
AC Power Input Labeling
The power distribution for the Bulk Power Supplies is as follows:
B1
A1
B0 A0