Tiffin Motorhomes 2015 Phaeton, Owner'S Manual, Page: 65 / 158

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ELECTRICAL FEATURES
MULTIPLEX SYSTEM
Your motorhome features a 12 VDC multiplex system (Figure 9-1).
This system allows the ability to control circuits from multiple loca-
tions in the coach. Each switch allows you to turn a circuit on or off
with individual button presses and provides an indicator light to tell
you the status of the circuit (i.e. whether it is on or off).
Many of the circuits are also dimmable by simply holding the button
to dim up or down.
Additional features of the multiplex system include the following:
• Master Feature (this is only on the control panel located at the en-
trance door)—this allows you to turn all lighting circuits on or off
with the press of a single button that is labeled “Light Master.” Pressing
the Light Master “off” switch will turn off all the interior lights within
the coach. Momentarily pressing the Light Master “on” switch will
turn on the same circuits that were on when Light Master “off” was
pressed. Light Master “off” remembers which lights were on when the
switch was pressed and will turn those same lights back on when the
Light Master “on” is momentarily pressed. Holding the Light Master
“on” switch will turn on all interior light circuits.
• Switch Panel Back Lighting—all of the switches are backlit to make the labels easy to read. If you de-
sire to turn the panel lights off, a switch is conveniently located at the center of the coach labeled “Panel
Lights” which allows you to turn the back lighting On, Off, or Dim.
• Status LED Indicator—a green LED beside each switch indicates whether the load is on or off. In
some cases, certain switches such as Awnings, Compartment Locks, and Generator do not have a status
indicator at the switch.
• Dimming Circuits—certain circuits within the coach are dimmable. To dim a light down, simply
hold the “off” switch until the light is at the desired level and release the switch. This setting will be
remembered the next time the circuit is turned on. To adjust the light up, simply hold the “on” switch
until the light is at the desired level and release the switch.
In the event that you have to check fuses, the centralized control panel is located in the third passenger
side bay. The fuses for the different light circuits are located here. The status of a fuse for any circuit can
be easily identified by looking at the circuit number and coordinating the number to the proper listing
on the fuse list chart beside the centralized control panel.
If a circuit is on and the fuse is blown, the indicator light beside that fuse will be red. If the circuit is on
and the fuse is good, the indicator light beside that fuse will be green. If the circuit is off, the indicator
light beside that fuse will not be on.
Figure 9-1:
Multiplex system