2. Installation
2.2 Connecting the PDU
2.2.5
C19-C20 Cables (optional: Models
PDUMH20HVAT and PDUMH20HVATNET
only): The PDU includes two C19 to C20
interconnection cables for the two primary and
secondary inlets, which may be used to connect
to upstream UPS sources. Alternately, the user
can supply IEC cables fitted with country-specific
plugs.
2.2.6
Connect PDU Input Plugs: (See the
Configuration and Operation section for more
information.) Connect the Primary input plug
to a preferred source of grounded 120V/230V AC
power, such as a SmartOnline
UPS system must not share a circuit with a heavy
electrical load (such as an air conditioner or
refrigerator). Under normal operating conditions,
the PDU will distribute AC power from the
Primary input source. Connect the Secondary
input plug
to an alternative source of grounded
B
120V/230V AC power, such as a redundant
SmartOnline UPS System. The UPS system must
not share a circuit with a heavy electrical load
(such as an air conditioner or refrigerator). Do not
plug the Secondary input into the same power
source as the Primary input. The PDU will
distribute AC power from the Secondary input
only if the Primary input becomes unavailable.
Note: Immediately after the PDU is connected to live AC
power, you may notice a series of soft clicking sounds emitted by
electrical relays within the PDU. The relays may also click
occasionally during the operation of the PDU. This is normal.
16-11-163-933688.indb 4
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( continued )
( continued )
A
™
UPS System. The
4
2.2.5
PDUMH20HVAT & PDUMH20HVATNET
A
B
A
B
A
2.2.6
PDUMH15AT,
PDUMH15ATNET
PDUMH20AT,
PDUMH20ATNET
PDUMH20HVAT &
PDUMH20HVATNET
B
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