User guide

Chapter 4: Using the PDU
34
Note: A few Dominion PX models may show some current being drawn or
power consumption while no loads are physically attached to the PDU. For
details, see Non-Zero Readings While No Loads Attached (on page
240).
Reset Button
The reset button is located inside the small hole near the two-digit row.
The Dominion PX device can be reset to its factory default values using
this button when a serial connection is available. See Resetting to
Factory Defaults (on page 237).
Without the serial con
nection, pressing this reset button restarts the
Dominion PX device's software without any loss of power to outlets. This
operation also power cycles the LED display, causing the LED display to
go blank and then return to normal.
The following images indicate the location of the reset button.
Circuit Breakers
Dominion PX models rated over 20A (North American) or 16A
(international) contain branch circuit breakers. These circuit breakers
automatically trip (disconnect power) when the current flowing through the
circuit breaker exceeds its rating.
When a circuit breaker trips, power flow ceases to all outlets connected to
it. You must manually reset the circuit breaker so that affected outlets can
resume normal operation.
Depending on the model you purchased, the circuit breaker may use a
button- or handle-reset mechanism.