IBM DS8900F, Введение и руководство по планированию, Страница: 79 / 172

Power features
You must specify the power features to include on your storage system.
The power features are separated into the following categories:
• Power cords
• Input voltage
Power cords
A pair of power cords (also known as power cables) is required for each base or expansion frame.
The DS8000 series has redundant primary power supplies. For redundancy, ensure that each power cord
to the frame is supplied from an independent power source.
Feature codes for power cords
Use these feature codes to order power cords for DS8900F base or expansion racks. Each feature code
includes two power cords. Ensure that you meet the requirements for each power cord and connector
type that you order.
Important: A minimum of one safety-approved ladder (feature code 1101) must be available at each
installation site when the top exit bracket (feature code 1401) is specified for overhead cabling and when
the maximum height of the overhead power source is 10 ft from the ground level. This ladder is a
requirement for storage-system installation and service.
Attention: The regional designations are general. If the input voltage for the country uses a wye
circuit, use the appropriate main power cables for EMEA (Europe, Middle East, and Africa) and
Asia/Pacific. If input voltage for the country uses a delta circuit, use the appropriate main power
cables for United States, Canada, and Latin America. For more information about electric currents
for various countries, see the International Trade Administration website (http://trade.gov/
publications/abstracts/electric-current-abroad-2002.asp).
Note: The IEC 60309 standard commercial/industrial pin and sleeve power connectors are often
abbreviated "IEC '309" or simply "309 wall plug".
Table 33. Feature codes for power cords
Feature code
Rated voltage/current Input connector Input connector
diagram
1038 Single-phase power
cord, 208 V, 30 A
NEMA L6-30P 2P+Gnd
1039 Single-phase power
cord, 250 V, 32 A
IEC 309 P+N+Gnd
1040 Three-phase power
cord, 250 V, 60 A (four-
pin Delta)
IEC 309 3P+Gnd
Chapter 4. Physical configuration 65