Siemens Cerberus PRO FC721 - C-NET Topology and Connection; Permissible C-NET Topologies

Installation
C
-
NET detector line
6
62 | 118
Building Technologies
A6V10211100_f_en_
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F
ire Safety
2015
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12
-
15
6.5.2 C-NET topology and connection
Permissible topology for the C-NET
The C-NET can be wired in the topology shown below. Regardless of the topology
(loop, stub or loop with sub-stub), the C-NET system limits, such as length, cable
resistor, number of users etc., must be observed.
Either one loop or two stubs can be connected to the C-NET detector line of the
FC721 (2-wire line to block of 4 terminals).
Loop
(max. 1 loop)
Stub
(max. two stubs)
Sub-stubs on loop
A sub-stub must only be connected between two line devices or line
separators as well as directly to the terminal connection.
Wiring NOT admissible
NOT admissible!
Sub-stub on sub-stub
NOT admissible!
Sub-stub on a stub
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