# Intercom Auerswald TFS-Dialog 400 Black

**URL:** https://aio.lv/en/product--auerswald-90061--1465572
**Data updated:** 2025-12-23 20:28 (EET)
**Category:** Control Systems
**Manufacturer:** Auerswald
**Manufacturer code:** 90061
**EAN:** 4019377900611
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The Auerswald TFS-Dialog 400 Black intercom features a sleek design with a glass and plastic housing. It is certified CE and has an IP44 rating for protection against dust and water. With dimensions of 140 mm width, 28 mm depth, and 220 mm height, it is compact yet functional, making it suitable for various environments. This intercom ensures reliable communication and durability, ideal for both residential and commercial use.

## Long description

The Auerswald TFS-Dialog 400 Black is an analogue door intercom designed for connection to an a/b extension port of telephone systems, including Auerswald ICT, AVM Fritz!Box and Alcatel/Avaya/Unify systems. Its slim surface-mounted housing combines safety glass and plastic, offers IP44 protection and CE certification, and measures 140 × 28 × 220 mm. The device supports remote configuration via smartphone app (Android and iOS) and provides LED-illuminated sensor operation, a numeric code lock, ambient backlighting and additional relay contacts for door opener or auxiliary devices.
Advantages
The TFS-Dialog 400 connects to a standard analogue a/b port and includes an Auerswald template for quick setup on Auerswald ICT systems. Configuration of phone numbers, functions and call buttons is done conveniently via a smartphone app and transmitted to the door terminal. The illuminated sensor field replaces mechanical keys and works reliably in varied conditions, while the numeric code lock allows keyless access with a 4–8 digit code. Indirect ambient lighting and selectable sensitivity levels improve usability in low light and noisy environments. The unit also provides three additional relay contacts for controlling a door opener, hallway light or an extra bell (requires bell transformer).
Suitable for
Residential entrances where analogue telephone system integration is required
Small offices and commercial premises with AVM, Alcatel/Avaya/Unify or Auerswald systems
Locations needing slim, surface-mounted intercoms with IP44 protection
Key specifications
Connection: analogue a/b extension port (ICT systems, Fritz!Box, etc.)
Dimensions: 140 mm (W) × 28 mm (D) × 220 mm (H)
Protection class: IP44; Certification: CE
Housing: safety glass front (6 mm) and plastic
Configuration: smartphone app (Android and iOS)
Features: illuminated sensor field, numeric code lock (4–8 digits), indirect ambient lighting
Additional outputs: three relay contacts (requires bell transformer for some functions)
How to use
Install the TFS-Dialog 400 as a surface-mounted unit and connect it to an analogue a/b port of your telephone system. If using an Auerswald ICT system, apply the provided template to simplify configuration. Install a bell transformer if you want to use ambient backlighting or additional bell-related functions. Use the smartphone app to program phone numbers, functions and the number of call buttons; transfer settings to the door terminal and update them as needed. Optionally connect a door contact (not included) to enable intelligent “door open” detection that stops incoming ringing when the door is opened.
Usage recommendations
For noisy locations choose the higher sensitivity setting; for quiet environments select the lower setting. Use a dedicated bell transformer when enabling ambient lighting or additional bell outputs. For full functionality with extra switching tasks consider the optional Auerswald a/b switch module.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.68 kg |
| Certification | CE |
| Operating temperature (T-T) | -20 - 50 |
| Height | 220 mm |
| Width | 140 mm |
| Depth | 28 mm |
| Product colour | Black |
| Speakerphone | Yes |
| Housing material | Glass, Plastic |
| International Protection (IP) code | IP44 |

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Auerswald products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Auerswald service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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