Topologies In Local Security Network - Bosch FPA‑5000 System Information

Modular fire panel
Notice!
Using addresses greater than 254 is not permitted.
With manual address setting, all the detectors in a loop, stub or T-tap must have an address
between 1 and 254.
3.4

Topologies in Local Security Network

LSN classic
In a Local Security Network (LSN classic), LSN elements can be configured as a loop or as one
or two stubs. An LSN classic network allows a maximum of 127 elements.
Loop
Tab. 3.2: Topologies in LSN classic
LSN improved
An LSN improved network allows a maximum of 254 elements. With automatic address
setting, LSN elements can be configured as a loop or as one or two stubs. With manual
address setting, not only loop or stub, but also T-tap topologies are possible. As long as the
maximum number of 254 elements is not exceeded, the LSN improved network allows
branches anywhere along the LSN line, with any number of nodes, any number of branches
per node and any number of elements per branch. Consider, that mesh structures are not
allowed.
Topologies in LSN improved with automatic address setting
Loop
Tab. 3.3: Topologies in LSN improved with automatic address setting
Bosch Sicherheitssysteme GmbH
LSN 0300 A LSN 0300 A
LSN 1500 A
LSN 1500 A
Stub
LSN 0300 A
LSN 0300 A
LSN 1500 A
LSN 1500 A
Stub
System Information
Planning | en 31
07.2020 | 12.0 | F.01U.028.089