CLASS 1 | |
WIRING | |
+12V | |
STATUS | |
| OPTIONAL |
REM | STATUS |
| LED |
GND | |
MOMENTARY MODE
contact switch, the RS-1 is not an appropriate remote switch for the PS-PRO II 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 II to handle loads that exceed 20 amps (16 amps PRO-E). To control them remotely with one or more remote switches, connect (in parallel) the REM, +12V (and optionally GND) terminals of all units. 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 II, as discussed in the sections above. To avoid tripping house breakers, the power input for each PS-PRO II 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 II’s or PS-PRO IIE’s, consult a qualified electrician.
If multiple PS-PRO II’s are controlled by one or more momentary remote switches, all of the PS-PRO II’s will change state (from on to off or vice versa) on each rising edge of the voltage on the REM IN terminal. All remote switches or START ON-OFF SEQUENCE pushbuttons on any unit’s front panel will toggle all of the units.
The key lock switches on each unit’s front panel will turn off an individual unit that is currently on without affecting the other units.
The STATUS lines work the same in either mode. Each reflects the true state of the unit’s outlets and is affected by both the “memorized” state and by the key lock switch. A separate LED must be used to indicate the status of each PS-PRO II.
To address the unusual (hopefully rare) instance when several PS-PRO II’s in parallel fall out of sync, resulting in some units turning on and others turning off when a remote button is pushed, the remote signal line has a special feature:
Holding the REM line high for at least 4 seconds (whether by an actual remote switch or by any unit’s START ON-OFF SEQUENCE switch) will force all units to the OFF state, putting them back in sync. This is the only way to re-sync units other than disconnecting AC power to all units. Remember: turning any key lock switch to OFF does not affect the stored state, even though it will temporarily turn the output of that unit off. If it is turned back to REM, the PS-PRO
IIwill sequence back to ON because the stored state is still ON.
status terminal
The STATUS terminal is an output that may be used to illuminate an LED at the remote location indicating that the power is available at the PS- PRO II’s outlets. If it is high (+5V), the unit is ON (or at least in the process of sequencing ON); if low, the unit is OFF (or sequencing OFF). Simply connect the indicator LED between STATUS and ground (do not use a series resistor). If the LED does not light when the switch is in the ON position, check the polarity and reverse the LED leads if needed.
