Aastra Ascotel IntelliGate 2065 - 7.5.5.1 Connecting a TFE without amplifier

Ascotel IntelliGate 2025/2045/2065
Part 4 Cabling interfaces 809
7.5.5.1 Connecting a TFE without amplifier
[1] Bell-ringing transformer as per EN 60742 (all the AC sources shown may be one and the same trans-
former).
[2] The power supply for the interface and / or the power supply for a door intercom system or a system
panel can be connected via the contact TS, TS’.
Fig. 4.76: Schematic circuit diagram: Connecting a TFE without a separate amplifier
+
+
-
AC
AC'
MIC+
MIC
SGND
SGND
TS
TS'
T a
LS
150
Ω
47
Ω
Pot
Jumper
[1]
[2]
[1]
[1]
[2]
U
out
A
4D
2D
D
A
D
Door intercom
module
Door intercom
module
Door intercom interface
TO
TO'
SON
SON'
Door opener
Bell button
Example of
door intercom
for three-wire
connection
haz1154aaenc0
8 VDC