Manual Door intercom devices a / b series 20 / 30 / 40 / 50 / 20-0028A/-0028B
GB
GB
Installation
2.4. Universal devices 20-0005/-0006/
-0018/-0026/-0028A/-0028B/-0048
1. Please mount the universal electronics in a
weatherproof location inside the provided
housing and please connect the electronics to
the interface unit(s).
2. Please take notice of the advice on wiring,
distances and wire lengths on page 51.
3. Connected buttons need to comply with
the requirements stated in NE60950 for
communication circuits (TNV). Standard "bell
buttons" usually do not meet these require-
ments, please use Behnke buttons where
required!
58
2.5. Series 50
Series 50 door intercom devices come
pre-assembled. To mount these door intercom
devices, please follow the steps shown here.
For advice on electric mounting, please see the
following pages.
Unclip the stainless steel strip
Remove the stainless steel strip
Connect and fix the door intercom device
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