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IFC goes to suspect after putting in service

• IFC goes to suspect after putting in service
• Generally it has been observed that the DGN of IFC passes when there is no any BM connected but as soon as any BM connected and it recovers the corresponding IFC goes suspect.
• Also it has been found that the DGN of IFC start failing. This is mainly because of the hardware of BM and that is mainly due to the Time switch card.
• It has been found after changing the TSM card the problem get solved. But if didn’t pass then we have to verify all Time switch cards i.e. TSC, TSM, TSS.
• Also we can’t rule out the role of Data cable and Clock cable for this problem.