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Connecting a door hands free unit (TFE, AS 190/191) ¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢
TFE
- interface conforming to the 4-wire TFE
specification FTZ 123 D12 for the connec-
tion of door stations with amplifiers.
Connections: (drawing 2)
- Connection of a potential-free bell
pushbutton to the contacts KT and KT´.
The telephone system supports one bell
pushbutton.
- Connection of the DC-free speech circuit
of the TFE to a loudspeaker system or an
audio module AM 20 to the contacts NF
and NF´.
- Control of the TFE, of the loudspeaker
system (activation of the amplifier or
power supply) or of the audio module AM
20 (voice/music changeover) via the po-
tential-free relay contacts TS (R 2) and TS´.
Maximum contact load-carrying capacity:
30 VDC/1 A or 123 VAC/0.5 A.
- Control of the door opener via the poten-
tial-free relay contacts T0 (R 1) and T0´.
Maximum contact load-carrying capacity:
30 VDC/1 A or 123 VAC/0.5 A.
You can only activate the door opener
from a terminal of the telephone system
after connecting an external bell trans-
former.
For connection, carry out the following op-
erations:
- Place the connecting leads through the
housing openings.
- Fit the screw terminals onto the connect-
ing leads.
- Insert the screw terminals of the individual
leads onto the provided slots (see draw-
ings 2).
- If you route a connecting lead of the
telephone system outside of the building,
you are advised to use external lightning
protection.
Connecting an audio module or loudspeaker system (AS 190/191) ¢¢¢¢¢¢¢¢
You can connect an audio module or a
loudspeaker system in place of a TFE or to
one of the eight ports for analog terminals.
(Fig. 4)
The port used for connecting the audio
module must be programmed to terminal
type ‘Audio module’. The relay R2 is as-
signed automatically to the audio module
(TS 1 - TS 2) with the programming. The re-
lay controls the speech/music switching of
the audio module in the case of an an-
nouncement.
You must connect a 600 ohm/0.5 Watt re-
sistor to the a/b connections of the ‘Audio
module’.
TFE 1
TFE 2
TS 1
TS 2
600 Ohm/0,5 W
Telephone system
In this example, Port 8 is defined
as terminal type "Audio module"
Port 6
La6 Lb6
Port 5
La5 Lb5
Port 8
La8 Lb8
Port 7
La7 Lb7
KT
NF
Door hands free unit (TFE)
TO TO´ TS TS´
Audio module AM 20
or
Loudspeaker system
KT´ NF´
Relay 2
Relay 1
Drawing 4: Connections of Audio
module
