2N Lift8 v1.0 - Manual (Page 27)

27
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Main bus
1 … Powering of main bus +
2 … Powering of main bus -
3 … Audio main bus +
4 … Audio main bus –
5 … Data main bus +
6 … Data main bus –
Connection of bus between announcers and splitter (CU)
We connect the splitter and announcers using a two-wire bus. We must maintain the
polarity.
Audio unit bus
1 … Bus for announcers +
2 … Bus for announcers –
Requirements:
When using multi-strand cables, always use a pair of wires which belong to each
other. In the case of regular cables of the UTP type the paired wires are twisted
around each other.
When running special cables (to the cabin), use neighbouring wires and ensure
that the nearest surrounding wire is not a source of interference (for example,
power wire, videosignal etc.).
Recommendation:
Do not run the bus near power wires, especially long sections.
The bus can be forked, in particular if this makes the overall length of all sections
shorter.