A simple connection of the REM IN terminal to the +12V
terminal initiates an OFF sequence. Disconnecting it initiates an
ON sequence. If the cable run is long, it is recommended that the
REM IN wire be tied to the PowerPort’s GND terminal during ON
operation rather than leaving it floating. This will require the use
of a third conductor and a double-throw switch.
Momentary Mode
In Momentary Mode, the PowerPort 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 “memory” state is OFF. This means the unit
will be off. It will stay off until sequenced on by a momentary
connection of the REM IN terminal to +12V. The sequence starts
on the rising edge of the signal. The “memorized” state will track
the input, so that the PowerPort will stay in synch with any other
units controlled by the same remote signal.
Because it is a maintained-contact switch, the RS-1 is not
an appropriate remote switch for the PowerPort when it is in
momentary mode. Use the RS-2 momentary switch instead.
Front Panel Slide Switch
If the PowerPort’s front panel slide switch has been moved
to either OFF or ON, and then back to REMOTE, the unit will be
OFF until it receives a remote actuation signal.
Status Output
The STATUS terminal is an output that may be used to
illuminate an LED at the remote location to indicate that power is
available at the PowerPort’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 it is wrong). If a Furman
RS-1 is the controlling switch, contact Furman’s Tech Support
department for the proper wiring diagrams.
Multiple Units
Use one PowerPort for each 20-amp circuit. To control
multiple PowerPorts with one or more remote switches, connect
the REM IN, +12V and GND terminals of all units together. Be
sure that the mode (momentary or maintained) of all units is set
the same. Connect a single maintained switch or one or more
momentary switches to the PowerPort nearest the switch.
If multiple PowerPorts are controlled by one or more
momentary remote switches, they will all switch at each rising
edge of the voltage on the REM IN terminal. Any remote switch
will toggle all the units. The slide switch on each unit's front panel
will turn off that unit without affecting the other units.
The STATUS outputs work the same in either momentary or
maintained mode. Each reflects the true state of the outlets of
its unit, and is affected by both the “memorized” state or by the
front panel slide switch. A separate LED and wire must be used
to indicate the status of each PowerPort.
To take care of the special (hopefully rare) case of having
several PowerPorts in parallel that somehow get out of sync
such that every time a remote button is pushed, some units
turn on and others turn off, there is a special feature of the
remote signal line: Keeping a remote switch pushed in for at
least 4 seconds will force all units to the OFF state, and put them
back in sync. This is the only way to re-sync units other than
disconnecting AC power to all the units. Remember — operating
the front panel slide switch does NOT affect the stored state of the
unit, even though it does temporarily turn the outputs off.
Shutdown Terminal
Shutdown is a dual function terminal. It can be an INPUT or
an OUTPUT. As shipped, it is an OUTPUT. An LED connected
between this terminal and ground displays the same information
as the PowerPort's front panel Power Status LED. This is useful
for remote visual monitoring of each unit's operating status.
As an alternative, the Shutdown Terminal can be used
as a Force Off INPUT. Force Off is a function that allows the
PowerPort to be switched off instantly. This is useful as an
emergency “kill switch”. In this mode, grounding the shutdown
terminal forces the unit off with no time delay. To change the
Shutdown Terminal from an LED OUTPUT, to a Force Off INPUT:
Now your PowerPort is set for remote Force Off INPUT
operation.
Note: If you are using the Shutdown Terminal as a Force Off
INPUT, and have multiple PowerPorts connected together, be
sure that all Shutdown Terminals are wired together, and that the
jumpers in all units are set the same. Once the system has been
forced off, it will stay off even after the Shutdown Terminal is
ungrounded. To turn the PowerPort(s) back on, the Shutdown
Terminal must be ungrounded and a maintained remote switch
must be turned off then on again, or a momentary switch must
be pushed twice. The Shutdown Terminal is pulled to +5 VDC by
an Internal 10K resistor. It must be pulled down to <300 millivolts
DC for at least 50 milliseconds to initiate a shutdown.
Symptom: PROTECTION OK Indicator not lit after ON delay has elapsed.
Possible Cause: Protection devices have been damaged.
Action Needed: Factory service.
Symptom: GROUND OK Indicator not lit.
Possible Cause: No building ground, bad outlet.
Action Needed: Locate good ground, run ground wire.
Symptom: OUTLET ON Indicator not lit after ON delay has elapsed.
Possible Cause: An abnormal condition exists.
Action Needed: Verify that line voltage and earth ground are okay.
If both are okay, contact factory service.
Symptom: MAINS OK Indicator flashing.
Possible Cause: PowerPort is receiving either 80-90 or 130-140 volts.
Action Needed: Correct line voltage. Consider installing a Furman AR-PRO or
AR-1215 voltage regulator.
Symptom: POWER STATUS Indicator flashes (and therefore power
to the outlets does not switch on).
Possible Causes: (1): The input voltage is nearly out of or not within the
acceptable range.
2): The front panel REMOTE (NORMAL)/ON/OFF (OVERRIDE)
switch is not positioned to REMOTE (NORMAL), making the
PowerPort unable to accept a remote command.
Action Needed: (1) Check and correct incoming voltage.
(2) Check the switch and make sure it is positioned to
REMOTE (NORMAL).
Symptom: EXTREME VOLTAGE Indicator flashing.
Possible Cause: Input voltage is below 80 or above 140 volts, causing power to
PowerPort’s outlet to be shut down.
Troubleshooting
1. Disconnect the unit from AC power.
2. Remove the four screws that secure the top cover.
3. Near the left rear corner of the circuit board there are two
pairs of terminals labeled J3 FORCE OFF, and J4
SHUTDOWN/POWER STATUS. Slide the jumper off of J4
and then slide it onto J3.
4. Reattach the top cover.
5. Connect a remote switch or automated shutdown system
between the Shutdown Terminal and ground.
