The Two-port network consist of Active
and standby redundant connection between server, core layer 3 switch and
layer 2 switch, which is the core network of the center line in this system, Each
terminal device in the line center was connected in a star
topology and aggregation to the core layer 3 switch, then cascade
to Backbone ring.
The backbone network between the stations is connected by 1000Mbps fiber
ring network redundancy.
Station terminal system: Divide the Station
terminal device according to the left
and right groups of the hall, connected
with the MIEN6220 series network managed industrial Ethernet switch, and then connected
the SFP port with the SFP port on the core switch to form a redundant ring
Station computer system: Aggregated with a star topology
through one MISCOM6026 cascade with the core switch,which
Enable data to communicate with the line center system through the station
backbone ring network
Center Line computer system:As the central
system of the entire line,which Responsible for the unified supervision of the
information of each station and upload it to the rail transit clearing center. Thereby, the line center computer system uses
two industrial Ethernet switches to interconnect the servers, storage, and
communication servers in a network structure of one active and one backup.
Repair center and training simulation system: The maintenance work area system is responsible
for the equipment maintenance work and training work of the entire station. To Communicate
with the line center, we cascade the device of Maintenance system, training and simulation system and
maintenance work area with station core Ring by three MISCOM6026.
System structure diagram