18.4
LON communication protocol
IP14420-1 v1
18.4.1
Application
IP14863-1 v1
M14804-3 v5
Control Center
IED
IED
IED
Gateway
Star coupler
RER 111
Station HSI
MicroSCADA
IEC05000663-1-en.vsd
IEC05000663 V2 EN-US
Figure 186:
Example of LON communication structure for a substation
automation system
An optical network can be used within the substation automation system. This
enables communication with the IEDs through the LON bus from the operator’s
workplace, from the control center and also from other IEDs via bay-to-bay
horizontal communication. For LON communication an SLM card should be
ordered for the IEDs.
The fibre optic LON bus is implemented using either glass core or plastic core fibre
optic cables.
Table 43:
Specification of the fibre optic connectors
Glass fibre
Plastic fibre
Cable connector
ST-connector
snap-in connector
Cable diameter
62.5/125 m
1 mm
Max. cable length
1000 m
10 m
Wavelength
820-900 nm
660 nm
Transmitted power
-13 dBm (HFBR-1414)
-13 dBm (HFBR-1521)
Receiver sensitivity
-24 dBm (HFBR-2412)
-20 dBm (HFBR-2521)
1MRK 506 375-UEN A
Section 18
Station communication
Railway application RER670 2.2 IEC
439
Application manual
Summary of Contents for RELION RER670
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