The line coupler is used in larger installations to
connect KNX lines or areas. The lines or areas are
galvanically isolated from one another. Telegrams can
be filtered to simultaneously reduce the telegram traffic
between lines or areas. The LK/S 4.1 features connections
to main and subline via bus connection terminals.
Within a line, the LK/S 4.1 can also be used as a line
amplifier (repeater).