2.3. Universal devices 20-0005 /
20-0006 / 20-0018 / 20-0048
1. Please mount the universal electronics at
a weather proof location inside the housing
provided and connect the universal electronics
to the operating unit(s).
2. Please take note of the advice on wiring, dis-
tances and cable length on pagepage 40.
3. Connected buttons must meet the require-
ments stated in EN60950 for telephone circuits
(TNV). Normal "doorbell buttons" usually do not
meet these requirements; please use Behnke
buttons instead!
www.behnke-online.com
Manual Door intercom devices a / b Series 20 / 30 / 50
2.4. Series 50
Series 50 door intercom devices come preas-
sembled. For installation, please follow the
steps as shown below. Advice on the electrical
mounting can be found on the following pages.
Clip off stainless steel strips
Remove the stainless steel clips
Connect and fix the door intercom station
GB
Installation
46