Sun Microsystems StorageTek 6140 Array, Руководство пользователя

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Chapter B Using DC Power 43
DC Power Connector Cables and Source Wires
The Sun StorageTek 6140 array is shipped with –48-VDC power connector cables if
the DC power option is ordered. The power connector cable plugs into the DC
power connector on the back of the array (Figure 6-3 on page 6-3). The three source
wires on the other end of the power connector cable connect the array to centralized
DC power plant equipment, typically through a bus bar above the cabinet. A
qualified service person is required to make this DC power connection.
FIGURE B-2
shows the DC connector cable and the source wires.
Two (or optionally, four) DC power connector cables are provided with each array.
There are two DC power connectors on the back of each array’s two DC power
supplies if additional redundancy is required.
Note – It is not mandatory that the second DC power connection on the array’s DC
power supplies be connected. The second DC power connection is provided for
additional redundancy only and may be connected to a second DC power bus.
Additional DC Specifications
The following are specifications for DC power for a fully populated controller or
expansion module:
Heat Output: 445 Watts (1519 BTU/Hr) using DC Power Source (NEBS)
Safety and Emissions: EN 300 386 (NEBS)
Installation Notes for DC Power
The sections that follow update the Sun StorageTek 6140 Array Hardware
Installation Guide for DC power.
■
“Ship Kit Changes” on page 44
■
“DC Power LEDS” on page 44
■
“DC Power Caution When Link Rate Switching” on page 44
■
“Connecting Power Cables” on page 45
■
“Turning Off the DC Power During an Emergency” on page 46
■
“DC Power Caution When Link Rate Switching” on page 44
■
“Relocation Cautions” on page 46