Signal Range - Marmitek KR22E Guide Utilisateur

same system. The address can be set either using code dials or by pressing buttons,
depending on the type of module.
The Marmitek X-10 System uses standard commands, which control all units with the
same HouseCode at the same time (e.g. all lights on, all off, etc.).

SIGNAL RANGE

Range of Marmitek X-10 signals over the Power Line and how to increase the range.
The Marmitek X-10 System is based on power line communication. The range of the
Marmitek X-10 signals very much depends on the local circumstances. On average the
range is a cable length of 80 meters.
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 cou-
ple 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 sig-
nals simply by unplugging devices from the power line, and testing the differences in
range for your Marmitek system. When e.g. your conclusion is that e.g. your comput-
er monitor is attenuating the signal, you can use a FM10 Plug-in Filter between the
power line and the monitor to eliminate the effects.
Known devices which can cause attenuation 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
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