PDH optik transceiver (Plesiochronous Digital Hierarchy, kazi-synchrone seri dijital) se yon ti-kapasite optik transceiver, jeneralman pè aplikasyon, ki rele tou aplikasyon pwen-a-pwen, ak kapasite a se jeneralman 4E1, 8E1, 16E1.Apre sa, JHA TECHNOLOGY pral prezante avan...
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