- 4 -
ft634a (23.06.2009)
Kompetent für Elektroniksysteme
- 5 -
ft634a (23.06.2009)
Kompetent für Elektroniksysteme
2
LIM AC
LIM AC
2 or 4
FT634aC (with channel switching) or
FT634a (without channel switching)
Example 2:
Parallel circuit of several operation terminals --> LIM AC has to be equipped with notch
for pilot tone.
On private lines the remote control can be carried out by DC.
Here the two LIM AC and the notch filters for the pilot tone are not
needed.
2
2
FT624
FT634aC (with channel switching) or
FT634a (without channel switching)
Major 4a or 5a
Major 5a
Major 4a
Example 1:
2- or 4-wire remote control via private lines
2 oder 4
FT634aC (with channel switching) or
FT634a (without channel switching)
FT634aCL (with line monitoring)
Major 4a, 5a or 6
Example 3:
2- or 4-wire remote control via leased lines.
AC- or DC- remote control
LIM AC (only 2-wire)
FT634aC
Examples
Depending on the setup of the radio installation different versions of the FT634a
can be used. The
following questions should be answered when planning:
- Interface connection of the FT634a
to
an operation terminal or a two-way radio set
- Remote channel switching necessary
- Line monitoring necessary
- 2- or 4-wire connection, simplex or duplex
- Remote station also FT634a
or operation terminal
