IEC06000638 V2 EN-US
Figure 18: Example of LDCM signals in SMTl
GUID-13B60A3E-CF41-4322-9576-42B5B9152EA5 v1
Telecommunication
network
Multiplexer
Multiplexer
LDCM
LDCM
IEC07000228-1-en.vsdx
IEC07000228 V1 EN-US
Figure 19: Typical LDCM application
4.4 Configuration of redundant channels
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LDCM installation should follow a specific sequence: slot 312, slot 313, slot 322,
slot 323, slot 305, slot 306. 2-4 LDCMs can be included in the installation
depending on the availability of IRIG-B and RS485 modules.
If available, IRIG-B is installed to slot 313 and RS485 to slot 312.
Main and redundant channels are installed in the same base card in slots 305–306,
312–313, and 322–323.
Section 4 1MRK 505 382-UEN B
Analog and binary signal transfer for line differential protection
32 Communication set-up 670/650 series 2.2
Application Guide
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