Connecting External Sub Distributions; Connecting The System Bus - Zumtobel ONLITE central CPS K Installation Instructions Manual

4 Connecting external sub distributions

4.1 Connecting the system bus

The components of an ONLITE central CPS system communicate via the system bus (LON).
For the system bus connection cables of the type JY (St)Y2x2x0.8 must be used.
Two cables are required, where two cable wires are used for data exchange and two cable
wires provide the 24 V DC-voltage supply.
Connect the wires to the bus terminals which are mounted on the terminal block -4X2 (see the
following figure).
i
The bus system can be configured in line topology or free topology. Please observe
the maximum cable lengths of 900 m (line topology) and 500 m (free topology).
Description of the system bus components
Designation
(1) 24 V voltage supply
(2) System bus (LON)
(3) System bus connector
1
2
3
Function
Terminals for the 24 V DC voltage supply of the system
bus (core colours: re/bk)
Terminals for the data connection of the system bus
(core colours: ye/wh)
Connector for plugging in the Touch PC (control unit)
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