Railway Signalling SMR SMCR TSR UCR ASR ALSR UYRs OVSR OVJSLR Circuits
Railway Signalling SMR SMCR TSR UCR ASR ALSR UYRs OVSR OVJSLR Circuits SMR/SMCR CIRCUIT This relay is energized when the SM’s panel key is `IN’ and turned to Normal. The Energisation of SMCR/SMR relay provides authorized operation of all the functions on the panel. When SM’s key is turned to reverse and taken out from […]
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