Siemens FC72x Quick Reference Manual page 41

Max. line length between two stations
Max. number of stations in network
Max. line length between the repeater and the
station
Maximum nunber of Repeaters between 2
stations
Maximum number of repeaters in the C-WEB
network
1 Space for first network card
Building Technologies
Fire Safety
Guidelines
● Fire control panels with 512 and more fire detectors (irrespective of the remote
transmission connection) must be equipped with 2 network cards
(SAFEDLINK) (according to EN 54).
● Fire control panels with a central remote transmission connection (irrespective
of the number of detectors in the system) must be equipped with 2 network
cards (SAFEDLINK) (according to EN 54).
● Fire control panels monitoring surfaces larger than 12,000 m
equipped with 2 network cards (SAFEDLINK) (according to EN 54).
● A network of up to 32 stations (incl. SAFEDLINK stations) via Ethernet is
supported, but does not meet the requirements of EN 54.
● Furthermore, the fire detection system can be connected to a management
station via BACnet/Ethernet.
C-WEB connection to network card
The C-WEB is connected to the connection terminals on the first network card.
A second network card (SAFEDLINK) can also be used for redundant network
operation (according to EN 54 guidelines).
The first network card must always be fitted on the left space (connection strip
X13) on the PMI & mainboard of the operating unit.
X3
X13
Figure 16: Installation of network cards on PMI & mainboard of operating unit (view of rear)
C-WEB (2-wire bus)
1000 m
32
1000 m in each case
1
32
2
Space for a second network card (degraded
mode module)
Installation
C-WEB network
must be
2
Ethernet (does not comply with
EN 54)
100 m (without switch or router)
14
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X3
X12
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