2–18 Hardware description
Hitachi Unified Storage Hardware Service Guide
Rear panel
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Figure 2-22: DBL rear panel
Legend:
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POWER, LOCATE, ALARM LEDs
See I/O Module (ENC), DBS, DBSD, DBL, and DBLD Drive Boxes on page 2-
42.
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IN Port
Connects to a CBSS or CBSL Controller Box or a DBS, DBL, or DBX Drive
Box.
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IN Port LED
ON when IN port is connected to a CBSS, CBSL, DBS, DBL, or DBX.
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OUT Port LED
ON when OUT port is connected to a DBS, DBL, or DBX.
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OUT Port
Connects to a DBS, DBL, or DBX Drive Box.
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Console Port
Not used.
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Power Unit
See Power Unit for DBS and DBL Drive Boxes on page 2-45 and Power Unit
for DBSD/DBLD Drive Box on page 2-46.
NOTE: The DBLD rear panel is identical to the figure above, except the AC
receptacles are replaced by receptacles for accommodating DC power.
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