Tripp Lite PDUMH20ATNET - Manual (Page 4)

4
2-2 Connect Input Plug Adapters (Optional -
Models PDUMH20AT, PDUMH20ATNET
Only): The PDU includes two adapters that
convert one or both of the L5-20P input plugs to
5-20P input plugs. Connecting the adapters is
optional. The PDU will function normally without
connecting the adapters.
2-3 Connect Secondary Input Cord to PDU:
Although the PDU will operate without
connecting the Secondary input cord, the
Secondary input is required for the PDU's
Automatic Transfer Switch function.
2-4 Connect PDU Input Plugs: (See the
Configuration and Operation section for more
information.) Connect the Primary input plug A
to a preferred source of grounded 120V AC
power, such as a SmartOnline ™ UPS System. The
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 B to an alternative source of grounded
120V 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.
3 Connect Equipment to PDU: Do not exceed
the load rating of the PDU. The total electrical
current used by the PDU will be displayed on the
digital meter in amperes. Each outlet includes a
green LED that illuminates when the outlet is
receiving AC power.
2-2
2-3
3 3
PDUMH20AT,
PDUMH20ATNET
PDUMH20AT,
PDUMH20ATNET
PDUMH15AT,
PDUMH15ATNET
PDUMH20AT,
PDUMH20ATNET
PDUMH15AT,
PDUMH15ATNET
PDUMH20ATNET
PDUMH15ATNET
2-4
B
A
B
A
PDUMH20AT
PDUMH15AT
2. Installation
(continued)
2.2 Connecting the PDU (continued)
English.indd 4 1/16/2009 4:37:22 PM