TETRA™ Call station deskfocX FT4
Block diagram
18
a3 Desktop call station
deskfocX FT4
Instead of a desktop call station, a flush-
mount call station can also be installed in a
control panel.
a4 RS 232 connection
Data connection (RS 232) between the
funktel server and desktop call station /
flush-mount call station.
• Requires close spatial proximity of the call
station and the funktel server
• The maximum permissible length of the RS 232
connection is 3m.
Comply with the note regarding snap-on ferrite
cores on Seite 22.
• The connections to a2 and a4 are project-
dependent alternatives
a5 funktel Server
funktel components
Additional workplace, e.g. a building management system
b1 Computer system with
building management system
user interface
Third-party system
b2 IP <--> RS 232 converter
For remote operation of the call station at
the location of the building management
system user.
• Data communication takes place via the LAN
(network)
• The converter between the IP interface and
the RS 232 interface is to be ordered sepa-
rately by the customer.
b3 Desktop call station
deskfocX FT4
Instead of a desktop call station, a flush-
mount call station can also be installed in a
control panel.
b4 RS 232 connection
Data connection (RS 232) between the
funktel server and desktop call station /
flush-mount call station.
• Requires close spatial proximity between the
call station and funktel server
• The maximum permissible length of the RS 232
connection is 3m.
Comply with the note regarding snap-on ferrite
cores on Seite 22.
• The connections to b2 and b4 are project-
dependent alternatives
6
LAN connection for the API
interface
API data connection between the server of
the building management system and the
funktel server
7
Network connections (LAN)
Network connection of the components
Components of the block diagram for integration
of deskfocX FT4 call stations (Forts.)
No.
Designation
Details / Explanation
