B Intelligent Power Subsystem; Intelligent Power Subsystem Features - 3Com 4007 Getting Started Manual

I
NTELLIGENT
B
The Switch 4007 provides a fault-tolerant, intelligent
power supply subsystem. The Switch 4007 chassis
can contain two power supplies.
The Switch 4007 intelligent power subsystem
supports:
930-watt AC load-sharing power supply (Model
Number: 3CB9EP9) with AC input power
High power availability
Controller-based power verification features that
are designed to ensure optimal performance
This appendix contains the following topics:

Intelligent Power Subsystem Features

Intelligent Power Subsystem Features
Power Management
Power Supply Modes
Power Availability and Power Supply Capacity
P S
OWER UBSYSTEM
Intelligent Power Subsystem Features
Table 11 lists the intelligent power management
features.
Table 11 Intelligent Power Subsystem Features
Feature Description
Load-sharing power Provides evenly distributed power
supplies consumption among all installed power
supplies. Switch 4007 activity is not
disrupted if a power supply fails
because there is no changeover (and
hence, no changeover interval).
Front and rear Provides easy access for upgrades. As
loading accessibility your power needs increase over time, it
is easy to upgrade by adding a power
supply into the rear of the 7-slot
chassis.
Dedicated power Cools the power supply bay. Vent holes
supply bay cooling and fan trays reduce the possibility that
an overheat condition in the power
supply bay may cause or contribute to a
failure of the chassis or its modules.
This feature works with other switch
features to maintain normal chassis
internal operating temperature.
High power capacity Determines the current power limit.
The power mode and the amount of
power available determine the current
power limit. The actual power that is
delivered depends on whether you are
running in non-fault-tolerant mode or
in fault-tolerant mode.