What is the difference between ISA Board & STM-1 in SDH
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Answer Posted / Nitin Banshi
ISA Board (Synchronous Transport Module-1, STM-1) is a digital interface standard used in Synchronous Digital Hierarchy (SDH). The main difference lies in their capacity: an ISA Board carries 154.48 Mbps of data, while an STM-1 carries 155.52 Mbps.
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