Furman Sound PST-10D - Manual (Page 7)

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and out going cable from the PST-10D. Connect the incoming
connector to the component that formerly received the out going
connector, thus by-passing the in-line protection. If the signal is
present (but not when used with the PST-10D’s) then the protection
circuit is damaged (assuming it worked properly before the storm or
catastrophic event).
Circuit Breaker
If the PST10D is connected to an AC outlet where sufficient voltage
is present, the unit should operate properly with the protection OK
indicator lit, after the main power switch is turned to the on position.
If the unit still does not function under these conditions, check the
circuit breaker button! It is the round black button adjacent to the
incoming AC cord. If the circuit breaker trips immediately, there may
be too great of a current load placed upon it. Simply disconnect one
product at a time until this no longer happens. If the breaker trips
with no components connected, there may be a wiring defect that
requires Furman service.
Indicators
Extreme Voltage Shutdown Indicator
Furman’s SMP+ circuit senses sustained voltages that are high
enough to cause damage to your components, and shuts the
power down before damage can occur. Such conditions can include
accidental connection to a 240VAC source (where 120VAC is
expected), or an open neutral from a 208 or 240VAC source.
The Extreme Voltage Shutdown LED is normally off. If an input