Fritz! POWERLINE 546E, Подключение и эксплуатация

Страница: 42 / 51

FRITZ!Powerline 546E 42
Technical Information on Operating FRITZ!Powerline
20 Technical Information on Operating FRITZ!Powerline
20.1 Electromagnetic Interference
There are norms that limit the emission of high-frequency in-
terference for all electronic devices. The standard EN 55022
(Information technology equipment—Radio disturbance char-
acteristics—Limits and methods of measurement) applies for
FRITZ!Powerline adapters. FRITZ!Powerline does not cause
any more interference than power drills, refrigerators, or simi-
lar appliances.
No disturbance of wireless communications applications is to
be expected.
Radio reception is generally restricted to the FM band be-
tween 87.20 and 108.00 MHz. The FRITZ!Powerline band is
considerably lower, at 2 to 68 MHz.
No disturbance of amateur radio bands are to be expected,
either. Within the frequency bands of amateur radio,
FRITZ!Powerline transmits at a lower level; in comparison to
conventional radio technologies, the transmitter capacity is
low and through symmetrical coupling only a very small part
of it is radiated by the power line.
20.2 Electricity Meter, Fuse Box, and GFCI Ground Fault Circuit
Interrupter
In some cases, the signal of powerline adapters can be re-
ceived even on the other side of an electricity meter, fuse box
or GFCI (or RCCB: residual-current circuit breaker)—even by
unauthorized users like neighbors.
However, data traffic in your FRITZ!Powerline network is pro-
tected from unauthorized access; see
Security in the Power-
line Network on page 41 .