ABB Relion 670 series - SECALARM Function Signals; SECALARM Basic Settings; About Security Events Logging

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IEC07000148-1-en.vsdx
IEC07000148 V1 EN-US
Figure 60: Multiterminal line with five line ends (master-master)
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IEC070001 83-1-en.vsdx
IEC07000183 V1 EN-US
Figure 61: Multiterminal line with five line ends (master-slave)
5.3 Fibre-optic communication interfaces with C37.94
protocol
GUID-93D69EE3-2ECA-4229-83D9-23182B4517AC v1
GUID-5A4E9F96-C38E-486D-A77B-F292FD31B1F9 v1
The line differential protection IED can be configured with fibre-optic interfaces
according to C37.94 protocol.
Three different types of LDCM modules are available:
1MRK 505 382-UEN B Section 5
Communication set-up
Communication set-up 670/650 series 2.2 75
Application Guide