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8.2 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.

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