Acopia ARX 1000, Hardware Installation Manual

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Chapter 3
3 - 6
Power Supply
The AC/DC power supply provides the following features and functions:
◆ Provides 400 Watts @ +2.5 V, +3.3 V, and +12.0 V for switch
operations. (Note that the power supply draws a total of 440W from the
AC power cord due to its operating efficiency.)
◆ Uses remote sensing to maintain stable voltage and to account for any
DC loss in cabling.
◆ Provides an AC alarm to indicate when power is about to be removed
from the system. When this alarm is activated, the power supply
maintains full regulated load for a minimum of 20 milliseconds, enabling
the system to shut down power gracefully.
Internal Disks
The switch uses internal disk drives to store its software image,
configuration files, log files, and other maintenance-related data. The
ARX®1000 contains two redundant SATA drives, configured RAID1.
These drives are connected to the primary controller on the Application
Control Module (ACM). They are Field-Replaceable Units (FRUs);
procedures to swap a drive appear in a later chapter.
Fan Unit
The internal fans are an environmentally-controlled cooling system. The
ACM is connected to the fan unit for temperature control and status
monitoring at 60-second intervals.