The power of the Public IV counter intercom

All functions of the Public III intercom , but also much more!

Of course, the Public IV also works in the open-full-duplex mode which means that no switch of the direction of the sound is made. This avoids disturbing effects of cutting off conversations.

Digital signal processing (DSP)

The Public IV counter-intercom is a fully equipped couter intercom system.

The intercom has digital sound processing capabilities, the DSP-module provides features such as:

Noise gate: switching off the microphone on the visitors side if there is no talk
Automatic echo suppression
Noise reduction: actively suppressing disturbing sounds

All options became standard

Push-to-talk (PTT) mode: as with a walkie-talkie, at the service side one has to press the button if one wants to talk
Boost mode: permanently amplifying the sound on the operated side.
The headphone connection has became standard.
A control output (open drain) is equipped to control a relay to open a door or barrier.
The volume settings of the headphones and table-top-unit can be set up separately and stored using the + and - buttons on the table-top-unit.
Connection for a foot switch that can control the PTT function

Basic layout

What's in the box

A microphone/loudspeaker table unit (40.054.440.001) with central functions on the servce side
A surface-mounted microphone (40.005.020) with 3.5 m cable
A surface-mount speaker with stainless steel housing (40.006.106)
5 m speaker cable
The Installation manual
RJ45 + RJ10 connection box (40.054.305.001)
Power supply unit, GPP10 medically certified, 110-240VAC (40.054.803.002)
The necessary plugs and screws