Sun Microsystems StorEdge S1 AC100, Installation And Maintenance Manual

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Chapter 1 StorEdge S1 AC100 and DC100 Overview 11
Auto-termination Indication LEDs
The Auto Termination Indication LEDs indicate if the StorEdge S1 storage enclosure
is part of an UltraSCSI, wide SCSI, or narrow SCSI daisy-chain. They also indicate
the enclosure’s position in the daisy-chain. See “Auto-termination Indication LEDs”
on page 72 for more information.
Internal Components
Power Supply
The StorEdge S1 storage enclosure has a single power supply that provides power to
the internal components. The power supply in your system is either AC- or DC-
powered.
AC Version
The power supply on the AC version converts incoming AC voltage to outgoing DC
voltages.
FIGURE 1-10
StorEdge S1 AC100 Rear View
DC Version
The power supply on the DC version converts incoming -48 VDC voltage to
outgoing DC voltages. The DC version has two connectors so you can connect a
single StorEdge S1
DC100
storage enclosure to two different -48V DC power sources.
Each DC power source should have a 10-amp circuit breaker.
AC power connector