Hitachi AMS 2100, Руководство по оборудованию

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Hardware components
Hitachi AMS 2100/2300 Storage System Hardware Guide
High-density expansion unit rear panel
The rear panel of a high-density expansion unit includes four power
supplies, four ENC-IN ports, and four ENC-OUT ports. The ports provide the
connections to daisy-chain high-density expansion units in the array. See
Chapter 5, Installation for details. The rear panel also provides LEDs that
show the status of the ENC units and the power supplies. Figure 4-31 shows
the hardware components on the rear panel of a high-density expansion
unit. Expanded views and detailed descriptions of the high-density
expansion unit power supplies and ENC adapters are located on the
following pages.
Figure 4-31: High-density Expansion Unit Rear Panel Components
Table 4-32: High-density Expansion Unit Rear Panel Components
Item Description Item Description Item Description

Power Supply 0B

ENC Unit B0 IN

ENC Unit A0 IN

Power Supply 1B

ENC Unit B0 OUT

ENC Unit A0 OUT

Power Supply 0A

ENC Unit B1 IN ENC Unit A1 IN

Power Supply 1A

ENC Unit B1 OUT ENC Unit A1 OUT