Owner`s manual

Primary Input Active
Secondary Input Active
17
Configuration and Operation continued
Quick Test
AfterinstallingthePDUandconnecting
equipment,youmaytesttheAutomatic
Transfer Switch function by temporarily
shuttingdowntheUPSsystem
connectedtothePrimaryACinput.
WhenthePrimaryinputUPSisnolonger
supplyingACpower,thePDUwillswitch
fromthePrimaryinputtotheSecondary
input,andtheSecondaryActiveInput
LEDwillbelit.WhenthePrimaryinput
UPShasbeenrestartedandresumes
supplyingACpower,thePDUwillswitch
backtothePrimaryinput,andthe
PrimaryActiveInputLEDwillbelit.
PDUMH30ATNET Model Shown
Note: The primary and secondary inputs must be
connected to separate sources of utility power. The
automatic transfer switch function will be
compromised if the primary and secondary inputs
are connected to the same utility power source. Do
not perform a test with equipment that must remain
in productive operation. Any test procedure must
prepare for the contingency that the equipment may
lose power. Do not test the PDU by detaching power
cords which are connected to live power sources, as
this eliminates the connection to ground and places
your equipment at risk.
13-04-262-93323D-EN.indd 17 5/10/2013 3:02:52 PM