Specifications

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In this application, the Redundant Switch is connected to two separate
AC sources. Loads with a single or multiple power cords can now have
N+1 power paths in case of a single AC source failure. The AC sources
can originate at a centralized UPS, a generator set, or even separate
utilities. Protection: This application protects against failure of one of
the two AC sources; these problems can range from a tripped circuit
breaker to a utility blackout to a centralized UPS failure.
In this application, the Redundant Switch is connected to two separate AC
sources. A single Smart-UPS is then connected to the Redundant Switch,
thereby providing the Smart-UPS with dual AC input feeds. Protection: A
Smart-UPS in the power path will provide full time surge suppression and
utilise battery backup should both of the two AC sources fail. Smart-UPS
protects against brownout, blackouts, and overvoltages that affect the
entire distribution system. With a Smart-UPS, there is also graceful
server shutdown, power monitoring, and power management.
Mirrored UPS Protection
With dual input power cords, Redundant Switch has
the ability to source power from one of two separate
AC circuits. The Redundant Switch continuously
monitors both AC circuits and will switch
automatically from the primary to the redundant AC
source. The transfer is seamless to the attached
loads ensuring the availability of continuous AC
power and safe server shutdown. Also, Redundant
Switch provides user configurable settings for low
voltage and AC line distortion in order to meet the
variable power needs of your site.
The Redundant Switch can easily be installed in any
19” equipment rack, occupying just 45mm or one U
of rack space. Alternatively, it can be mounted in the
rear or side of the rack, requiring zero U of valuable
rack space. It ships with all appropriate rack mount
hardware for two and four post racks.
Implementing Your Solution
Because its design is so flexible, there are numerous
configurations for Redundant Switch providing
different levels of availability. Three are outlined
below: Good, Better, and Best.
Redundant Switch for Smart-UPS
APC’s Redundant Switch accessory products offer network
managers a cost effective method for increasing AC power
availability to network equipment
Redundant
Switch
AC Source “A”
Redundant
Switch
Smart-UPS
AC Source “B”
= Communications
= Power
= Power
AC Source “A”
AC Source “B”
Good:
Better:
Load
Load