Marmitek TM13 Modo De Empleo página 4

If you have difficulties with the range of
your Marmitek X-10 signals, please pay
attention to the following facts:
1. When more than one phase is used for
your electrical system, it is necessary to
couple these phases for the Marmitek X-10
signals. For coupling you can use FD10 Phase
Couplers/Filters. You only need to install a
Phase Coupler/Filter when your wall outlets
and light switches are divided over more than
one phase (more than one group is no
problem). For bigger buildings or longer
distances we advice you to use an active
repeater instead of passive FD10's.
2. It is possible that Marmitek X-10 signals
are attenuated by devices and lights which
are connected to the power line. In a normal
home situation this effect is negligible (the
Marmitek X-10 system is using active gain
control to eliminate the effects). However, it is
possible that a particular device in your house
is attenuating the signals so much that the
range of Marmitek X-10 signals is decreased
significantly. When you have range problems,
it is wise to try to locate the device which is
attenuating the signals simply by unplugging
devices from the power line, and testing the
differences in range for your Marmitek sys-
tem. When e.g. your conclusion is that e.g.
your computer monitor is attenuating the sig-
nal, you can use a FM10 Plug-in Filter
between the power line and the monitor to
eliminate the effects.
Known devices which can cause attenua-
tion are:
PC Monitors
PCs with heavy internal power supplies
Old Televisions
Copiers
Fluorescent Lights
Gas Discharge Lamps (Energy Saving Lamps)
3. Some (old) devices are able to disturb the
signal by transmitting noise on the power
line. Because the Marmitek X-10 signals are
transmitted on 120 kHz, only noise on or
near this frequency will have influence on
the range. When you use a FM10 Filter to
connect this device to the power line, the
noise will be filtered.
4. The Marmitek X-10 protocol has several
mechanism to avoid modules to be switched
on or off by other sources than your
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