Cabling And Power Up; Checking The Voltage; Figure 2-21 Voltage Reference Points For Iec 320 C19 Plug - HP Integrity rx7640 Installation Manual

Cabling and Power Up

After the system has been unpacked and moved into position, it must be connected to a source of AC power.
The AC power must be checked for the proper voltage before the system is powered up. This chapter describes
these activities.

Checking the Voltage

This section provides voltage check information for use on the customer site. The empahsis focuses on
measuring the voltages at the power cord plug and specified as an IEC 320 C19 type plug. This end plugs
directly into the back of the server chassis.
Perform these procedures for each power cord that will be plugged directly into the back of the
NOTE
server. If you do not obtain the expected results from this procedure during the voltage check,
refer to the section titled "Voltage Check (Additional Procedure)" on page 77."
Preface
The server requires a minimum of 2 power cords. To enable full power redundancy, 4 power cords may be
used. When using 4 power cords, dual power sources may be used to provide additional power source
protection.
Power cords are designated and labeled A0, A1, B0 and B1. Cords A0 and B0 should be energized from the
same power source and cords A1 and B1 should be energized from a second, independently qualified power
surce. The cord labeling corresponds to the labeling at the servers power receptacles.
Voltage Range Verification of Receptacle
Use this procedure to measure the voltage between L1 and L2, L1 to ground, and L2 to ground. Refer to
Figure 2-21 for voltage reference points when performing the following measurements.
Figure 2-21 Voltage Reference Points for IEC 320 C19 Plug
IMPORTANT Perform these measurements for every power cord that plugs into the server.
Chapter 2
Installing the Server
Cabling and Power Up
73