SDH的速率等级 STM115552M6S(约155M) STM462208Mb/S(约622M) STM1624832MbS(约25G) STM64995328Mb/S(约10G)SDH的速率等级 • STM-1 155.52 Mb/S ( 约155M) • STM-4 622.08 Mb/S (约622M) • STM-16 2488.32 Mb/S (约2.5G) • STM-64 9953.28 Mb/S (约10G)