HP Integrity rx2620 Installation Guide, Third Edition - HP Integrity rx2620 (A - Page 58

AC Input Power, power:states, Table 5-1

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Connecting Cables AC Input Power AC Input Power The server can receive AC input from two different AC power sources. If two separate power sources are available, you can plug the server into the separate power sources, increasing system reliability should one power source fail. The power receptacles are located at the rear of the chassis. They are labeled PWR 1 and PWR 2. CAUTION Do not route data and power cables in parallel paths in close proximity to each other. The suggested minimum distance that the data and power cables should be apart is 7.62 cm (3 inches). The power cord has current flowing through it, which creates a magnetic field. The potential to induce electromagnetic interference in the data cables exists, thereby causing data corruption. You can install a maximum of two bulk power supplies (BPS) in the server. Installing two BPSs in the server provides n+1 redundancy, meaning that if one BPS fails, there is another power supply to power the server. You must promptly replace the failed BPS to restore n+1 functionality. A minimum of one BPS is required to power the server. There is no n+1 capability in this case. Power States The server has three power states: • Standby power • Full power • Off Plug the power cord into the appropriate receptacle on the rear of the chassis to achieve the standby power state; the front panel power button is not turned on. Full power occurs when the power cord is plugged into the appropriate receptacle, and either the power is activated through the MP PC command, or the power button is activated. In the off state, the power cords are not plugged in. Table 5-1 lists the server power states. Table 5-1 Power States Power States Standby power Full power Off Power Cable Plugged Into Receptacle? Power Activated through the MP PC Command; or Front Panel Power Button Activated? Yes No Yes Yes No No AC Voltage DC Voltage Applied? Applied? Yes No Yes Yes No No NOTE If the power restore feature is set to Always On through the MP PR command, the server may automatically power on to the full power state. 58 Chapter 5

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Chapter 5
Connecting Cables
AC Input Power
58
AC Input Power
The server can receive AC input from two different AC power sources. If two separate power sources are
available, you can plug the server into the separate power sources, increasing system reliability should one
power source fail. The power receptacles are located at the rear of the chassis. They are labeled PWR 1 and
PWR 2.
CAUTION
Do not route data and power cables in parallel paths in close proximity to each other. The
suggested minimum distance that the data and power cables should be apart is 7.62 cm (3
inches).
The power cord has current flowing through it, which creates a magnetic field. The potential to
induce electromagnetic interference in the data cables exists, thereby causing data corruption.
You can install a maximum of two bulk power supplies (BPS) in the server. Installing two BPSs in the server
provides n+1 redundancy, meaning that if one BPS fails, there is another power supply to power the server.
You must promptly replace the failed BPS to restore n+1 functionality.
A minimum of one BPS is required to power the server. There is no n+1 capability in this case.
Power States
The server has three power states:
•
Standby power
•
Full power
•
Off
Plug the power cord into the appropriate receptacle on the rear of the chassis to achieve the standby power
state; the front panel power button is not turned on. Full power occurs when the power cord is plugged into
the appropriate receptacle, and either the power is activated through the MP
PC
command, or the power
button is activated. In the off state, the power cords are not plugged in. Table 5-1 lists the server power states.
NOTE
If the power restore feature is set to
Always On
through the MP
PR
command, the server may
automatically power on to the full power state.
Table 5-1
Power States
Power States
Power Cable
Plugged Into
Receptacle?
Power Activated through the
MP
PC
Command; or
Front Panel Power Button
Activated?
AC Voltage
Applied?
DC Voltage
Applied?
Standby power
Yes
No
Yes
No
Full power
Yes
Yes
Yes
Yes
Off
No
No
No
No