• TSA-a/b | Auerswald


Connection adapter for connecting 4-wire or FTZ door phones to an analogue port of modern PBXs

The conversion of telephony to IP often involves purchasing a new PBX. Although modern PBX systems are state-of-the-art and offer all sorts of modern features, but you will not find a connection for the existing door phones anywhere?

Auerswald has the solution: With the TSA-a/b door phone adapter, door terminals with an older 4-core interface or a 2-core connection in accordance with FTZ 123 D 12-0, which perhaps cannot be easily replaced for structural reasons, can be connected to the analogue port of a modern, VoIP-enabled PBX.

The existing door terminal, from Siedle, Ritto, Grothe, Telekom or Auerswald for example, can be kept. The TSA-a/b was not only designed for Auerswald PBX systems, it is also suitable for use on all conventional PBXs with analogue subscriber ports.

Features Overview

  • Access of older door phone systems to an analog port of a modern PBX system
  • Inverter from 4-wire- and FTZ 123 D 12-0 interface to analogue subscriber ports
  • Additional switching options via optional a/b Switching modules
  • Power supply via bell transformer
  • Separate volume control for both speech channels, impedance adjustable
  • Built-in power amplifier for stations without an output amplifier
Power supply bell transformer, 8-12 V AC or 12-40 V DC, max. 0.5 A
System connection analogue subscriber port of a PBX
Door phone connection

4 wire system or  FTZ 123 D12-0 interface (e. g. Siedle, Ritto, Grothe, Telekom),
power supply 9/12 V DC, 200 mA (can be switched)

Technical Data  
Bell button max. 2, dry contact
Door opening relais 8-12 V AC, 12-40 V DC, 2 A
Light relais 8-12 V AC, 12-40 V DC, 1A
Case plastic, grey
Dimensions: (w x h x d) 142 mm x 81 mm x 27 mm
Weight 136 g
Security CE





Keine Produktabbildung

Data sheet TSA-a/b

2 pages - PDF


Keine Produktabbildung

Brochure Türsprechsysteme

8 pages - PDF


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