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Momentary mode, Multiple units – Furman Sound PS-PRO HT User Manual

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P S - P R O H T - P O W E R CO N D I T I O N E R / S E Q U E N C E R

The front-panel key lock switch is not the primary

means of control in the momentary mode and

should normally be left in REM. It may be a useful

secondary means of control in the rare case of

having several PS-PRO HT’s in parallel if there

is some reason to shut down one unit without

affecting the others.
Because it is a maintained-contact switch, the

RS-1 is not an appropriate remote switch for

the PS-PRO HT when it is in momentary mode.

The Furman RS-2 is the proper choice. Please

contact Furman for RS-2 wiring diagrams.

Multiple Units

You can use more than one PS-PRO HT to

handle loads that exceed 20 amps. To control

them remotely with one or more remote switches,

connect the REM to REM, +12V to +12V, GND to

GND terminals of all units together. Be sure
that the mode (momentary or maintained) of all

units is set the same. Set all key lock switches

to REM. Connect a single maintained switch or

one or more momentary switches to the nearest

PS-PRO HT, as discussed in the sections above.

To avoid tripping house breakers, the power

input for each PS-PRO HT should come from a

separate 20 amp AC circuit. If you are unsure

whether your building’s wiring can accommodate

multiple fully-loaded PS-PRO HTs consult a

qualified electrician.
If multiple PS-PRO HTs are controlled by one

or more momentary remote switches, all of the

PS-PRO HTs will change state (from on to off or

vice versa) on each rising edge of the voltage on

the REM IN terminal. The key lock switches on

each unit’s front panel will turn off an individual

unit that is currently on without affecting the

The connection of the REM terminal to the GND

terminal initiates an ON sequence. Disconnecting

initiates an OFF sequence.

Momentary Mode

In Momentary Mode

(jumper plug installed on

JMP2) the PS-PRO HT has “memory” — it only

needs a momentary signal from the remote switch

to change its state from ON to OFF. When first

plugged in (or after power is lost and reapplied for

any reason) the stored state is OFF. The unit will

stay off until sequenced ON by a momentary

connection of the REM IN terminal to +12V (the

key switch must be in the REM position). The

sequence
starts on the rising edge of the signal.
One or more remote momentary switches that

may be connected to the terminal strip in the

rear.
The “memory” is independent of the key switch.

This means that even if the unit is sequenced off

by turning the key lock switch to OFF, when the

key lock switch is turned back to REM, the unit

will sequence back on. The unit “remembers” its

state until the incoming power is lost, in which

case it would default back to OFF.

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