m4a5a_v320_eng (14.02.2013)
- 34 -
Kompetent für Elektroniksysteme
m4a5a_v320_eng (14.02.2013)
- 35 -
Kompetent für Elektroniksysteme
Sample Configurations with Telephone Interface
Major 4a can be equipped with an optional telephone interface. Now the major can be connected to
to the telephone network or an interphone system via an ordinary (analogous) telephone connection.
This is achieved with a common RJ11 telephone socket at the rear of Major 4a. Now, the following
additional features are available:
- dial switching of telephone connections to radio (manually or automatically)
- dial switching of a radio connection to a telephone subscriber (manually or automatically)
- connection of distant radio sets via analogous land-line. (with FT635 ÜLE, substitution of a
permanent line)
telephone
line
2
/
8
/
Major 4a
FT635 ÜLE SL
Remote control of a distant radio (pseudo-permanent line, Major 4a and Major 5a)
Dial switching to the telephone network (only Major 4a)
Major 4a
8
/
Remote control of a distant radio is achieved using an FT635 ULE SL. For this configuration a telephone
connection, of course, must also be present at the location of the radio.
Basically, the ÜLE SL establishes a telephone connection, that is maintained for the desired time. Both
devices monitor the status of the connection and rebuild the connection, if it was disconnected.
radio
radio
telephone
telephone system or
switching center / tel. network
telephone
line
2
/
telephone
line
2
/
telephone
line
2
/
telephone system or
switching center / tel. network
