General Installation Instructions - ABB -Welcome Manual

ABB-Welcome
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General installation instructions

• Terminate all branches of the wiring system via a connected bus device (e.g.,
indoor station, outdoor station, system device).
• Do not install the system controller directly next to the bell transformer and other
power supplies (to avoid interference).
• Do not install the wires of the system bus together with 100-240 V wires.
• Do not use common cables for the connecting wires of the door openers and wires
of the system bus.
• Avoid bridges between different cable types.
• Use only two wires for the system bus in a four-core or multi-core cable.
• When looping, never install the incoming and outgoing bus inside the same cable.
• Never install the internal and external bus inside the same cable.
• For optimum tone quality ensure that the module is seated correctly. Press the
microphone with the microphone adjuster directly against the voice plate.
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Mounting/Installation
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