TFS-Dialog 400 series

A flat, continuous glass front with sensor buttons, behind it well protected and invisible loudspeaker and microphone, surrounding LEDs for indirect ambient lighting - the door intercom system TFS-Dialog 400 shines with a particularly elegant appearance and an unusually large function package with astonishing finesse.


Operating system

V1.0 (Stable) | 29.09.2017
Apple iOS
V1.0.15 (Stable) | 29.09.2017
Google Android
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LanguagesCurrent version
Labelling as PDF V01 10/17 PDF
Labelling as Word Document V01 10/17 PDF
Drilling Template V01 07/2020 PDF
Instructions a/b Switching Module V03 10/2020 PDF
Privacy Policy TFS Set V02 07/2021 PDF
Statements of conformity V03 10/2022 PDF
Advanced Information V03 03/2024 PDF
V03 03/2024 PDF
Instructions V03 03/2024 PDF

Instructions a/b Switching Module

Safety information

Note about qualified electrician complemented.

Note about door bell transformer complemented. Note about inflammable materials deleted.

Technical Data

Operating voltage: Values changed

Contact load capacity: Values changed

Several editiorial changes

Statements of conformity

- 2011/65/EU with amendment 2015/863/EU replaces 2011/65/EC.
- EN 55032:2015/A11:2020 replaces EN 55032:2015
- EN 55035:2017/A11:2020 replaces EN 55024:2010+A1:2015
- EN 63000:2018 added
- EN 61000-3-2:2014 deleted
- EN 61000-3-3:2013 deleted

Advanced Information

General information

Advanced information for TFS-Dialog 400

Changed descriptions

TFS Set app

Information on installation

Several editiorial changes


General Information

Manual for TFS-Dialog 400

Changed descriptions

Declaration of conformity

Manufacturer and website added

TFS Set app

Information on installation

Several editiorial changes

Privacy Policy TFS Set

For TFS Set

For the following firmware:

  • V1.0


  • German
  • English
  • French


Recommended parameter settings for Auerswald door intercom systems

 TFS-Universal plus / a/b
TFS-Dialog 300 / 400
TFS-Dialog 200
   Sensitivity    Volume    Sensitivity    Volume  
Default value3232
COMander Basic.2
COMmander Business
COMpact 2206 USB
COMpact 4410 USB
COMpact 4406 DSL
COMpact 2104.2 USB
COMpact 2204 USB
ETS-1006 FAX1212
ETS-2106 I Rev.2
ETS-2204 I
ETS-4308 I
Agfeo AS 405353
Fritz Box3291
Fritz Box Fon WLAN 70503266
Elmeg ICT 465353
Panasonic KX-TDA151031

Note: The installation location, the internal room acoustics and the number of connected a/b switching modules may influence the specified values. The parameter values may deviate from the recommended values.

The COMpact 3000 analog/ISDN/VoIP PBXs don't feature an interface for FTZ-standard doorphones.

However, you can use analog doorphones such as our TFS-Dialog 20x/30x/universal plus. In addition, you can use the TSA - a / b use this converter can convert different doorphone to a / b port .