Hardware Overview
50
System Hardware Guide
Back Panel
Power
supply
units
Hardware interface panel
System card interfaces
Figure 16: Back panel
The back panel has three major functional areas: the power supply units, a hardware interface
panel, and a system card interface area. See Figure 16.
Power Supply LEDs
Figure 17: Power unit LEDs
LED locations
A Data Domain system has three power supply units. Each power unit has an LED (see Figure 17)
that glows green when the unit is functional. The LED glows amber if the unit has failed, but still
has power. The LED also glows amber when the Data Domain system is turned off but the unit is
still plugged in to a live power source. The LED is dark if the unit has no power.
Содержание DD580
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