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Electrical Connections
Multi
MAXX
HD
53
PR-2007-0350-GB • Subject to modifications • R2-04/2016
9.7.3 Network topologies
The MATRIX.Net can be set in a
line structure
and a
line structure with stub line
.
All units fitted with MATRIX system can access this data bus. The data bus must be
terminated at both physical ends to avoid reflections which can interfere with data
transfer. Switchable bus end resistors are integrated on the respective boards enabling
safe termination – refer to Chapter „Connecting MATRIX.Net“.
9.7.4 Line structure
The illustration shows the setup of the MATRIX.Net with line structure.
As an example two groups, each consisting of a control panel and a global
module, are networked. In addition, power supply of the control panel via the controller
(terminals 95/99) is shown.
Fig. 9-35:
Set up of MATRIX.Net in line structure
1
2
NOTE!
The data transfer cable must be run as demonstrated in Fig. 9-35 in such a way
that only one side of the respective shielding is applied – see “Shielding / Eart-
hing” on page 55.
Group 1
Group 2
4-wires
4-wires
2-
wires
2-wires