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Instructions for Series 5 / 10
GB
Set up
3.4. Wiring diagram
Microphone
Speakers
Grounding
Additional power supply
Potential-free voltage, e.g. from a Behnke
power supply unit
+
15 V =
–
Telephone line
Main analogue connection or
analogue telephone extension
Wire b
Wire a
44
CPU
Buttons
Button 1
Button 2
Relay 1
Relay switch power:
max. 60 VA/24 W: 0.5 A,
120 V~/1 A, 24 V=
Control contact
Rest contact
Operating contact
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