Siemens FS720 - Wiring

Installing, exchanging and co
nnecting modules
Installing an Ethernet switch (modular) FN2012
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Building Technologies
A6V10210390_m_en_
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Fire Safety
2018
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08
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7.15.5 Wiring
7.15.5.1 Wiring overview
The figure shows typical usage of the Ethernet switch in an FS720 station with all
connections and in an optical Ethernet ring. All the connections shown are current-
limited and monitored.
The electrical Ethernet cables for external connections P2 and P3
must be
between min. 2 m and max. 6 m long.
Figure 93: Overview of wiring for Ethernet switch (modular) FN2012
Connector/designation Description
P0, P1
For FS20/FS720 applications: Optional modules for Ethernet ring connections for
optical wiring (SM, MM)
P4, P5 Internal Ethernet connections in stations
P2, P3
External Ethernet connections for Cerberus-Engineering-Tool, MMS, Cerberus-
Remote, etc.
MoNet
Connection from PMI & mainboard to Ethernet switch (modular) for the supply
and transmission of degraded mode and system signals (MoNet bus)
FCA2031
Connection module (MoNet) in the SAFEDLINK main module slot. Makes the
MoNet bus available.
Panel Approved Siemens station in which the FN2012 is installed
Configuration of the Ethernet switch (modular) is described in detail in document
A6V10210424.
P5 P4 P3 P2
P0
P1
POWER
FAULT
MoNet
Ethernet Ring
MoNet
PMI & Mainboard
Ethernet
FCA2031
Panel
1 x Ethernet internal
2 x Ethernet external
MoNetBus
SDL
SAFEDLINK-Network