KNX GIRA 5110 00, Руководство пользователя

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Function | Function as repeater
RF/TP media coupler/repeater | Order no. 5110 00 | 51103300 Page 25 of 42
of the repeater. If only two repeaters are used in one RF domain, the likelihood
of communication problems due to repeated telegrams is reduced.
The ETS permits integration of up to 255 repeaters in one domain. Nonethe-
less, because of the RF data protocol, one RF telegram can only be forwarded
a maximum of six times. Thus, use of more than 2 repeaters in one RF domain
would be possible in principle.
After commissioning with the ETS, a repeater can no longer be reached dir-
ectly via the TP side because the TP transceiver of the device is switched off.
This feature is necessary because from a topological standpoint, a repeater
(without media coupler function) is exclusively assigned to the RF line, and no
longer to a TP line. As a result, further programming operations using the ETS
can no longer be executed on the TP side without the media coupler. Direct
access to the device via the TP side is only possible again when the device is
reset to delivery state (see chapter "As-delivered state"
}
Page 40).
Further information on commissioning is available in the chapter "Commission-
ing" in this documentation (see chapter "Commissioning"
}
Page 10).
Image 7: Application example 1: two repeaters in a star configuration