Number Item Description
7 PATH (OUT) LED Blue: OUT side port is linked
up.
8 PATH (OUT) connector Connects to a drive tray.
9 Console This port is reserved.
10 Power supply unit N/A
11 Receptacle Connects to the power cable
provided with the storage
system.
12 AC IN LED Green: Normal operation.
13 ALM LED Red: Power supply unit can
be replaced.
14 RDY LED Green: Normal operation.
AC power supply unit LEDs and connectors
Both SFF and LFF drive trays are equipped with AC power supply units. The AC power
supply units include LEDs to display its operating status.
Note: The DBSE and DBLE power supply has a Platinum efficiency rating.
Number Item Description
1 RDY LED Green: Normal operation.
2 ACI IN LED Green: AC input is operating
normally.
3 ALM LED Red: Power supply unit can
be replaced.
AC power supply unit LEDs and connectors
Chapter 2: Hardware overview
Hitachi Virtual Storage Platform E590 and E790 Hardware Reference Guide 27
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