nIles aUdIo CorPoratIon – 1-800-bUy-HIFI
5
LEd’S
There are two LED’s on the front panel of the FM-1/FM-1R.
a) The red LED signals “power” (the unit is plugged
into a wall receptacle and receiving power from
the 120V outlet).
b) a green LED signals when the fans are
operational (blowing air).
OUT OF ThE BOx OPERATION
When the FM-1/FM-1R is plugged into a 120V power
outlet and no cable is plugged into the Trigger
Input jack, both LED’s will light and the fans will
begin to move air.
UTILIzING ThE REMOTE ON/OFF FEATURE
The FM-1/FM-1R contains a REMOTE ON/OFF feature that enables the fans to begin air movement
only when your system’s audio equipment“tells” it to do so. The fans will begin blowing and the
green LED will light when the FM-1/FM-1R receives a 12V trigger from another source. at the rear
of the FM-1/FM-1R are the “Trigger” input and control output jacks. Both jacks accept an 1/8”
male “mini” plug.
The FM-1/FM-1R “Trigger” input jack accepts 3 to
24V (DC or AC) from either another audio component
that transmits this type of trigger voltage or a standard
12V (DC or AC) power transformer plugged into the
switched outlet of an audio source (remember, the
FM-1/FM-1R only accepts a 1/8” inch mini plug––no
cannon plugs!) The “Control” output passes 11VDC,
20mA (max) power along to the next component.
See Figures 4 and 5 on this page and Figure 2 on the previous page for some applications where
the FM-1/FM-1R is utilized to cool a source and/or power amplification component.
TEMPERATURE SENSING
The FM-1/FM-1R’s temperature-sensing variable speed fans detect the amount of heat being
generated by the components in its proximity and adjust the fan speeds accordingly––slowing them
down when the system is first turned on or if listening at low levels where the system’s amplifiers
are not producing as much heat, or speeding them up in order to quickly dissipate more heat.
FM-1
SYSTEM COOLING MODULE
Red “Power” LED
Green “Fan on” LED
Figure 3
Figure 4
Power
On/Off
Switch
12V Remote
On/Off Jacks
Home Theater Receiver
MODEL
SI-245
Figure 5
Receiver
Switched
Outlet
Dual Male ‘Mini’
plug cable
