SDH equipment can implement all kinds of function in the transmission network. According to the different function, the common SDH equipments include terminal multiplexer(TM), add-drop multiplexer (ADM), regenerator (REG), data cross connect (DXC).
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- SDH設備用來(lái)完成傳輸網(wǎng)絡(luò )的各種功能,根據完成的功能不同,常見(jiàn)的SDH設備可以分為四種,包括終端復用器TM,分插復用器ADM,再生中繼器REG,數字交叉連接設備DXC。
